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Experience: Over 40 Years of Management Experience in Bearings Trade and Industry.

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Quality

An ISO Approved Product: Quality assurance form the world leading Quality Assessors.

Technological Assistance: Design and Technical Guidelines from the best Japanese Manufacturing Company.

Strong Belief in Quality: Quality is First Priority. Strong Quality management and online inspection at every operational stage.

Product Design: Special Care on Product Design. Production Technology and Quality inspection is taken to deliver high precision reliable bearings.

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Innovation: Quick Development of New Bearings Types with perfect Quality as per requirement of our Customer.

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Affordability: World Class Quality Bearings at competitive prices.

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Distribution Network: Widespread Sales Network with distribution in over 70 countries enabling customer needs to be met quickly and accurately.

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Features

Insert ball bearing unit is considered of a double sealed, single row bearing and one of various types of housings (Cast iron housing, Stamping steel housing, Stainless steel housing, Engineering plastic block, Nodular cast iron housing, Nickel plating housing, Zinc alloy block, etc.)

Bearing Units Structure

The outer ring of the self-contained ball bearings in ground to a sphere and the bore of housing in machined to a matching radius. This permits self-aligning between the two members. Above figure is a view of a Pillow Block which is the most popular type of Insert Ball Bearing Units with set crew locking. The bearing units have various types of perfect sealing devices and can operate satisfactorily under hardworking conditions, especially for machines operated in dusty or muddy surroundings. Thus, they are widely used in agricultural machinery, construction machinery, textile machinery, foodstuff machinery and conveying devices, etc.

Note:

1. When the fit between bearing and housing is clearance fit, the bearings outer ring has anti-rotation ball (pin).

2. Two set screws on the wide inner ring at 120 C apart.

3. Usually, The Outer ring of the WHX Bearings had grease groove, bearing having no grease groove are to be provided too.

The Features of Products

Rational Self - Alignment

The outside diameter of the self-contained bearing is spherical to match corresponding spherical inside diameter of the housing providing self- aligning between these two members, which compensates for mis-alignments of the units resulted from errors in mounting and distorting of the foundation.

01


Large load carrying capacity

Being the same as 6200 and 6300 series single row deep groove ball bearing in internal construction of the the self-contained bearings, Insert ball bearing units can sustain radial loads and sustain thrust loads as well. And they are low noise during operating.

Longer Service Life

Insert ball bearing units are often used in severe operating conditions where they are exposed to dirts, moisture and high temperature and in such applications, the grease inside the self-contained bearing deteriorates in a short time. It is required that relubricate the units at suitable intervals so as to replace deteriorating grease with fresh grease. Insert ball bearing units with east iron housings are all relubricable types equipped with grease fitting to secure full performance and longer service life of the units under any operating conditions.

Efficient Sealing

Solid Housing

The cast iron housing is of solid one-piece construction to provide maximum rigidity againts deformation at mounting and wear-resistance to any operating conditions.

Bearings can be locked on the shaft easily

There are three methods locking bearings to the shafts. Locking with two sets crews in the extended inner ring is the most common methods. Adopting sleeve locking or an eccentric locking collar is also available. All these locking methods can lock the bearing on the shaft easily.

RS type Buna-N rubber for seal shaped by fulguration, fix it inside seal groove by its flexibility,it could be dismounted. Inner lip of rubber contact with external diameter of inside track, it has good performance of anti-friction, oil proof and good mechanical stability.

The excellent steel frame shaped by pressing, fixed inside outer-ring seal groove, the interior of firm and reliable frame adhere to Buna-N rubber lip contact with external diameter of inside track, avoid the incursion of dust and sand etc sundries.

There are a RS rubber seal fixed inside outer-ring seal groove, and there are also a bead flange by swing dust fixed in external diameter of inside track, this kind of maze style structure could effectively avoid the incursion of dust and leak of lubricating grease.

Combined type seal ring of filling rubber flake, it combined by two sets of excellent steel frames shaped by pressing and a slice of Buna-N rubber, tightly fixed inside outer ring groove, so it cant be extruded by over greasing, and also cant be loosen by impact and vibration during assembly.

The sealed excellent steel frame riveted with outer ring, the sealed three Buna-N rubber lips has big contact with external diameter of inner ring, it could effectively avoid the incursion of water, dust, sand etc sundries, suitable for rugged environment.

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02


Special heat treatment on bearing inner ring

The inner of the self-contained bearing is hardened in the race-way and surroundings part where hardening is necessary, the area of set screw hole of the inner ring has been templed by high temperature after hardened, it has higher toughness and impact clasticity. This special heat-treatment ensures full bearings performance and prevents the set screws from loosening during operation as the set screws can be tightened hard enough without causing broken inner ring set screw hole.

Unique device to prevent bearings outer ring rotation

The bearing outer ring is equipped with a unique locking-pin (or ball) which permits automatic self aligning of the bearing, and also prevents outer ring from rotating. This can prolong bearings service life.

Anti-rotationdevice

Hardened Area

Tenaciousextended area

Complete interchangeability between bearing and housing

Skilled precision workmanship on the self-contained bearing and the housing provides complete interchangeability between them and the bearing can be replaced whenever required.

Easy Installation

The self-contained bearing is prelubricated with an adequate quantity of high quality grease. Bearing units can be mounted on the shaft immediately. The units are, therefore, free from ingress of harmful contaminants into the bearing chamber during mounting procedures.

The desiring installation method of installing insert ball bearing unit is: first install the housing at support base firmly, then tighten the bearing to the shaft. The method which the bearing is tightened to the shaft is set screw locking type bearing. tightening the two set screws located at two places on one side of the wide inner ring to the shaft. For eccentric locking collar type bearing rotating the eccentric locking collar to lock the shaft by hand in direction of rotation. Then tighten the sets screw that located at the eccentric locking collar.

Bearing No. Set Screw Tightening Torque (N.m)(Max)

UC204 - UC206 UC207 - UC209UC210 - UC212UC213 - UC218

UC305 - UC306UC307UC308 - UC309UC310 - UC313UC314 - UC316

M6 X 1M8 X 1

M10 X 1.25M12 X 1.5M14 X 1.5

3.97.816.629.434.3

Proper Tightening Torque of set Screws

03


Allowable load of housings

The allowable loading capacities of the housings differ substantially, depending on the housing shape and the load direction. Since the ball bearing units is complicated in form, it is difficult to calculate their allowable loading capacities. In many cases such values are entirely different from the actual ones. For such reason, the P type housings is taken up here as most popular example. The strenght to the load from each direction is shown here as obtained from the actual test

Allowable loading capacity of cast-iron housing

As to the P type housing the destruction strength of downward, upward, horizontal and axial directions is shown below.The difference between the loading capacity and the destruction of the housing represents the safely of the housing.

Allowable load pressed of housing Pressed housing shows deformation when subjected to the lead. The deformation depends upon direction and amount of the load, form of the housing, and the thickness of steel plate. Therefore, the allowable load of the housings must be such an amount that deformation of the housing may not disturbed the function. The allowable load of the plate housing is approximately 1/3 of the basic load rating in the radial direction, and approximately 1/3 of allowable radial load in the axial (thrust) direction.

Destruction strength of Pillow type housing

04

NominalNumber

Downwarddirection

destructionstrength(kgf)

Upwarddirection


Horizontaldirection


Axialdirectiondestruction

strength(kgf)

P203P204P205P206P207P208P209P210P211P212P213

7100810094001230016200181001880019400210002750029000

3000330037005000610066007000750082001050011500

500056006100900010100109001240013800152001730019000

11001700180022002400250026003200340044005100

P214P215P216P217P218P219P220P322

3990042600468004910054900599006780083000

1640018300194002090022400240002710033000

2700030000345003600038400418005630060400

950011100123001270013400140001740019000


Lubrication of Ball Bearings

Permissible Speed

Permissible speed of a ball bearing is expressed normally in terms of dn value (Bearing bore diameter mm x operating speed r.p.m.), althought it is influenced by the shape, size, lubricant type, and seal device. The permissible speed can be roughly determined by the sliding speed at the friction part of the holding device and rolling body, in the case of ball bearing unit, it is provided with grease sealed by the oil seals and slingers. Accordingly, the friction resistance at seal contact yields also a large influence on the permissible speed. When such factors are taken into consideration, the permissible speed is given as follows.

Dn < 150,000 [dn=dxn]

Whereas: d: Bearing bore diameter (mm) n: Operating speed (r.p.m.)

Type of Grease Nipple

Lubricant Grease

Ball Bearing units adopts the lubrication mechanism by grease. Since the ball bearing itself is required high precision, the grease must be in particularly fine quality. Various, type of grease are sold in the market; each having different combination o mineral oil and metal saponification radical. Among them, lithium saponification radical grease is usually called, Multi-purpose grease . It is most suitable for a ball bearing unit. At present, Gold pillow lube grease is used for the standard product of DPI and is lithium saponification radical grease it is most suitable for the ball bearing.

Replenishment of Grease

Since the high quality grease is used for the ball bearing unit, the grease can be used for a considerable time without the grease supply, if the bearing working oondition is favorable and the operation temperature is not too high.However,even if the best quality grease is used, the quality deterioration cannot be prevented as the time passes by. When the dust or moisture surrounds the bearing too much or the bearing is subjected to the high temperature, the grease must be supplied periodically according to the grease deterioration. DPI ball bearing unit has such a construction so as to allow the grease replenishment during the use. Grease is injected into the grease nipple by use ofthe grease gun. Through the oil groove provided in the bearing outer ring and the oil hole, it is supplied to the inside of bearing. The grease supply interval is dependent on the kind and quality ofthe grease to be used as well as the operationsconditions ofthe bearing. Under the normal operation condition, however,the value as obtained by the following formula is recommended.

05

Applicable Housing Type of Grease nipple

Type No.

M6X1

P(PX),F(FX),FL(FLX), FC (FCX)T(TX), C(CX),PH

PA,PW,PG,LP,FS,FD,FW,FT,FUFA,FB,HA,HE,LF

203(S)-210305-309X05-09

211-215310-315X10-14

M8X1

216-328X15-20

M10X1


Whereas, N: Toal rotation number until the replenishment or replacement d: Bearing bore diameter (mm)If the revolution number per minute constant, the replenishment interval is expressed in terms of the time as follows:

Whereas: N: Replenishment interval (hr) d: Operating speed (r.p.m.)

Different from the previous calculation data, the following table shows the approximate grease supply interval obtained empirically from various ambient conditions and bearing operation temperature.

Grease supply period

H= 1x 1010

N= 1010/d

60n d.

Sealing Devices Following kinds are used as the sealing device of DPI ball bearing unit. By selecting the sealing device which is most suitable to the application condition, the bearing working life can be doubled.

B-type sealing device(Applicable bearing....UC type, HC type, RB type, SER type)

L-III type sealing device(Applicable bearing....UC type, UK type, HC type, RB type, SER type)

This is the original sealing device. Oil seal is fixed in the outer ring inner diameter groove, while the slinger is set at the inner with inner outer ring outer diameter. Furthermore, the simultaneous revolution with inner ring generates the wind pressure for dust-proof property. This constitute the ideal labyrinth. Effective dust-proof property is thus guaranteed.

This is an epochmaking new seal. Which can be said to be a revolution in the bearing sealing. The metal cap and synthetic rubber seal are baked together to form a single seal. Seal lip has sufficient tightening allowance. Furtheremore, the lip layers are double or triple construction and the foreign matters such as dust, water, etc. are completely shut out. This sealing system shows its outstanding performance under severe ambient conditions as dust, dirty water, gas and chemicals, where is has been so difficult to be controlled.

06

Ambient conditionBearing operation temp(C) Supply period

Over Below dn:under50000 dn:over50000

Fairly clean

- -50 Non-Supply 1.5-3 years

50 70 1-2 years 6-12 weeks

70 100 4-8 months 1-3 weeks

100 - 2-4 weeks 1-2 months

Somewhat dusty

- 50 1-2 years 6-12 months

50 70 4-8 months 2-4 months

70 100 3-6 weeks 2-4 weeks

100 - 1-2 weeks Every week

Considerably dust

- 70 1-2 months 3-6 weeks

70 100 2-4 weeks 1-2 weeks

100 - 1-7 days 1-3 days

Much moisture & water splash - - 1-3 days Every Day


J-type sealing device(Applicable bearing....SA type, SB type, SC type)

K-type sealing device(Applicable bearing....SA type)

Dust Proof Unit with end-covers: opened Dust Proof Unit with en-covers: one opened, another close

Fig. a. Flat seat provided for shaft(for improvement in setscrew tigthening effect)

Fig. b. Drilled seat provided for shaft(for improvement in setscrew tigthening effect)

Synthetic rubber is adhered by baking the core piece.It is inserted into groove of the outer ring and fitted the inner ring outer diameterIt has low friction, high property in oil resistance and good mechanical stability.

Special Synthetic rubber is baked at the inside of thick steel shield plate and is fixed with the outer ring of bearing. The inner ring outer diameter special synthetic rubber contacts reasonably tight so that the friction resistance will be lessened. The thick steel plate protects the rubber seal. This combined effect ensures the long service life even under considerably unfavorable conditions.

Handlings One of the predominate features of DPI bearing units is their simplicity of handling and installation. It is of the utmost important that these units are handled and installed correctly to ensure reliable performance.

When Installing setscrew units, it is important to tighten the setscrews to the shaft with the specified torque. If the unit is mounted in an environment where it is exposed to impact or vibration, or if the shaft is rotated in normal and reverse directions, or if rotation is started and stopped frequently and repeatedly, then grind or drill the surface of the shaft where it is contacted by the setscrew with file or drill in order to create a flat seat (a) or drilled seat (b). This will significantly improve the tightening effect of the setsrews.

Installation of setscrew units

07


If the unit is exposed to great load excessive vibration, another option is to use a shouldered shaft and tighten the inner ring of the bearing with a shaft nut, For dimensions of the shouldered shaft, see 9 Design of shaft and base

Fig. c. Example of installation with a shouldered shaft and shaft nut

Fig. d. Installation of setscrew units

Table A. Setscrews of the ball bearing for units

Standard DPI bearings are equipped with double point setscrews which offer secure tightness to the shaft. Additional styles of setscrews are also available to meet a range of purposes and operating conditions (see. table A)

Shown below are installation procedures for bearing units with setscrews.(1) Inspect the unit to ensure that the rigidity of the base, flatness of the mounting surface, and tolerance of the shaft meet the required standards. Check the shaft for bends, burrs and other flaws.(2) Make sure that the tip of the setscrew does not exceed the bearing bore diameter surface.(3) Fit the bearing unit onto the shaft and slide it to the specified position. In order to secure a tight fit. press -fit the bearing unit to the shaft with a press, cold -fit by cooling the shaft, or shrink-fit the bearing unit by warming with an air bath (100 C or lease). Avoid hitting the bearing with a hammer to press-fit the bearing to the shaft).(4) Align the bearing unit to the specified position on the base and affix it with washers, if necessary, and bolts (Fig. d) Use the torque wrench to tighten the bolts to the housing to the specified torque setting. For mounting bolt torque specifications.(5) Tighten both of the setscrews on the inner ring to the specified torque setting (Fig. e).(6) Turn the shaft by hand and tighten the setscrews of all other bearings in the same shaft to the specified torque setting.(7) Finally, turn the shaft by hand and make sure that it rotates without any problems.

08

Designations(code)

Double point(no indication)

Double point(G7)Locking finish

Pointed (G4) Full dog point cap (G6)

Details

The cone point at the center of the screw combined with the round point at the outer

sdge provide excellent shaft contact and greatly reduce fitting error. A nylon film is fused to the thread surface to prevent the

screw from lossening during operation

The cone point setscrew has a 90 angle and fits

a drilled cone seal in the shaft. It allows correct

positioning on the shaft and prevents shaft

movement in an axial direction.

The full dog point setscrew fits into

the keyed groove in the shaft and allows for expansion and

contraction of the shaft.Prevent looseness with elastic force of nylon

film fused to the thread surface


Fig. e. Tightening of setscrew

Installation procedures for adapter style bearing are shown bellow.(1) Inspect the unit to ensure that the rigidity of the base, flatness of the mounting surface, and tolerance of the shaft meet the required standards. check the shaft for bends, burrs and other flaws.(2) Slide the adapter sleeve onto the shaft where the bearing unit will be installed. If the sleeve is to tight, place a screw driver in the slotted portion of the sleeve and expand the slot to open sleeves,(3) Slide the bearing unit over the shaft and onto the adapter sleeve, then place a cylindrical reinforcing place againts the inner ring of the front side of the bearing. Seat the adapter sleeve by lightly tapping all around the backside of the sleeve (Fig. f)

(5) Align the bearing unit to the specified position on the base and affix it with washers, if necessary, and bolts. Use a torque wrench to tighten the bolts to the specified torque setting. (6) Use a torque wrench to tighten the locknut to the correct specification (Fig. g)(7a) For pillow block housings, loosen the mounting bolts and adjust the unit axially while rotating the shaft by hand. Then re-tighten the mounting bolts to the correct specification.(7b) For flange block housings, the position of the unit must be in the correct axial position in relation to the shaft, so take extra care to properly align them before completing installation.(8) Bend one of the tabs on the washer so that it fits into one of the slots on the locknut (Fig. h).

(9) Finally, turn the shaft by hand and make that it rotates withoutany problems.

Installation of adapter style units Adapter units, comprised of an adapter sleeve. locknut, and washer, can be installed into environments where they are exposed to excessive vibration and impact. It is of great importance that these units are properly mounted. If the locknut is not properly tightened, the sleeve may be loose which could lead to slippage and wear on the shaft or bearing.Conversely, if the locknut is over-tightened, the inner ring of the bearing can expand and reduced internal ball clearance which could cause excessive heat and premature failure.

(4) Attach the lock washer so that the tab fits into the slot in the sleeve, and making sure the tapered side is facing the bearing, tighten the locknut on the sleeve by hand.

Fig. f. Fitting adapter sleeve to bearing with tappered bore

Fig. g. Tightening the locknut Fig. h. Bending claw of washer(Locking locknut)

09


Installation of units with eccentric locking collars Eccentric locking collar bearings provide another option for shaft locking. Since the rotating force of the shaft increases the tightening force of the eccentric ring to the shaft, this style of bearing allows a secure grip to the shaft. Since the rotating force of the shaft increases the tigthening force of the eccentric to the shaft, the unit with eccentric locking collar allows secure fixing of the bearing (Fig. i)

Installation units with covers Covers for ball bearings are available in two types, steel plate and cast iron. Install both the covers at last after installation of the bearing and housing is complete.

Procedures for installation of the ball bearing units with covers are shown below,(1) Apply grease all around the seal lip of the cover, and pack the internal space of the cover with grease (approximately 1/3 to 1/2 of the space capacity).

(Fig. k)

Fig. i. Ball bearing units witheccentric locking collar

Fig. k. Packing grease internal space of a seal lip covers

Fig. j. Installing eccentric locking collar

Installation procedures for eccentric locking collar style bearings are shown below.(1) Inspect the unit to ensure that rigidity of the base flatness of the mounting surface and tolerance of the shaft meet the required standards. Check the shaft for bends, burrs and other flaws.(2) Slide the bearing onto the shaft, and place it at the specified mounting position.(3) Align the bearing unit to the specified position on the base and affix it with washers, if necessary and bolts (Fig. a). Use a torque wrench to tighten the bolts to the housing to the specified torque setting.

(4) Fit the eccentric section of the inner ring of the bearing to the eccentric recessed section of the eccentric locking collar, and rotate the collar in the direction of shaft rotation. Then tighten the setscrew eccentric locking. Then tighten the setscrew eccentric locking collar to the specified torque setting (Fig. j)(5) Rotate the shaft by hand and then install the next eccentric locking collar unit to the shaft,(6) Finally, turn the shaft by hand and make sure that it rotates without any problems.

10


Periodic Inspection DPI ball bearing units do not not to be inspected as frequently as lower bearings. However it is good practice to set up an inspection schedule for even these high quality bearings. Since a ball bearing unit cannot be disassembled for inspection if the internal status of the components the external appearance of the bearing must be inspected to give tell-tale signs of the status and expected life of the bearing. The following characteristics must be checked per the inspection schedule that is established for a particular specification.

1. Overall appearance2. Looseness of setscrew of bearing inner ring or ot the mounting bolts3. Noise form vibration4. Temperature of the bearing housing or inner ring5. Grease supply interval and quantity of grease injected into the bearing either too much to little grease can be detrimental to the life of the bearing.

Table B shows the main faults that are usually found during periodic inspections and their causes. If any fault is found in a ball bearing unit during an inspection, then immediate action must be taken into correct the situation and prevent deterioration of the bearing components. If serious damage has already occured to the bearing unit, then the bearing must be replaced immediately to prevent damage to other machine components.

(1) Put a cover through the shaft, and then, fit the bearing unit the shaft.(2) Fit the cover through the shaft to the cover groove on the housing and fix it.(4a) For the steel plate cover, tap all around the cover evenly with a synthetic resin hammer to prevent deformation and install it to the housing. (Fig.l)To remove the steel plate cover, put screwdriver into the groove on the periphery of the cover, and slightly pry it.(4b) When installing the case iron cover, fit the cover to the housing, and fix it with the bolt. (5) Install another cover to the housing in a similar manner.(6) Check for abnormality of installed cover.(7) At last, turn the shaft with your hands, and check for abnormality in the rotating status of the bearing.

Fig. l.Installing steel plate cover

Table B. Main faults found during periodic inspection and their causes

11

Faults Excessive TorqueAbnormal noise,

Abnormal vibrationAbnormal temperature

increaset

Causes

(1) Degraded grease(2) Interference of seal with slinger due to excessive supply of grease(3) Deformation of slinger causing interference with seal(4) High load due to shaft expansion

(1) Improper tightening of set screws or of mounting bolts(2) Wear of inner ring of bearing or shaft due to creep or fretting(3) Ingress of foreign matter dirt into bearing(4) Damage to cage or ball rolling surfaces due to rolling fatigue(5) Dent on raceway surface because of excessive load(6) Warped or bent shaft

(1) Degraded grease(2) Interferenace of seal with slinger due excessive suppy of grease(3) Deformation of slinger carsing interference with seal(4) Looseness of set screw, eccentric locking ring or adapter lock nut for tapered i.d. bearings(5) Load due to shaft expansion(6) Damage to cage or ball rolling surface due to rolling fatigue.


Replacing bearings If a bearing insert needs to be replaced, it is not always necessary to replace the housing, if the housing is undamaged, simply insert a new bearing into old housing, after carefully inspect the housing to assure that is not damaged.

Replacement procedures for a bearing insert are listed below.(1) Remove the complete bearing unit from the shaft and mounting base.(2) Screw in the setscrews so the head of the setsrews does not produced outside the O.D. the inner race. Otherwise the head of the setscrew may damage the bearing is horizontal.(3) Turn the bearing 90 with a hammer handle or a bar pipe until the bearing is horizontal.(4) Remove the bearing insert from the housing via the bearing groove in the housing.

Reverse the above procedure to put in a new bearing insert, ensure that the setscrews are screwed in before proceeding with the replacement.

12


Insert Ball Bearing Units

13

Housings

Bearings P.PK,LP

UCPXUCX

SB, SB-G

NA

SA, SA-G

UK

UK

UKP+H

UCPH

HC RBER

SERCSA

CSA-F CS-2RS ORAE NAA H2300A200A300

Eccentriclocking collar

CSB

UCC UCFB UCFA UCHA Disk Harrow Units

FarmImplementsBallBearings

AdapterSleeveLocking

SALFTC-GSBFTC-G

SAPFTD-GSBFTD-G

Others

UKF+H UKFL+H

UKP+H UKF+H UKFL+H UKFC+H

UK

SAF-G SAPP SAPFL SAPF SAPFTSAP-G

SALP-G

SALF-GSAFD-G

NAPNAPK

NAFPNAFU

NAFLANFLU NAFC NAT

Sets

cre

w T

yp

eE

ccen

etr

ic L

ockin

g C

olla

r T

yp

eA

dap

ter

Typ

e

SBP-GSBLP-G

SBFL-GSBLF-GSBFD-G

UCFX

UCPUCPK

UCPAUCPA-AUCPG

UCF UCFL UCFC

SBPP SBPFL SBPF SBPFT

UCTUCSTUCK

PA,PG,PA-A F,FUFL,FLULF,FD FC T,ST,K PP PFL PF PFT

Cast Iron Housings Pressed Steel Plate Housings


Types of Insert Ball Bearing Units

14

1. Pillow Blocks

UCP, NAP,UKP+H,SBP-G,SAP-G, UCPK, NAPK,UCAK,NAAK, UCPX,SALP-G,SBLP-G, UCP,NAF,UKP+H

Pillow blocks are most extensively used among the bearing units, UCP, UCPK, UCAK and SBLPG, these types are fixed to the shafts by means of the sets crews prepared in the inner ring, NAPK and SALP-G type are fixed to the shafts by use of sets crews prepared in the eccentric locking collar. UKP type is announced to the shafts by use of adapter sleeves

2. High center height pillow blocks

UCPH, NAPH, UKPH+H

It is one type of pillow blocks with higher center height.

3. Tapped-base pillow blocks

UCPA, NAPA, UKPA+HUCPA-A, UCPG

It has compact structure, saving mounting space. It can be fitted with bolts from the underneath of the base

4. Square flange units

UCF, NAF, NAFU, UKF+H, SAF-GUCFX

These bearing units are designed to fix at the sides of the machine which are to the center of the shafts by means of 4 bolts. The mounting method is widely used in the machines. The setscrews, the eccentric locking collar and the adapter sleeve bearings have the same mounting method as the P housings do.

5. Round flange cartridge units

UCFC, NAFC, UKFC+H

These bearing units are installed in the holes on the side of the places where concentricity demanded,



15

6. Oval flange units

UCFL, NAFLU,UKFL+H, SBFLG, NAFL

This type of housing is useful in saving space and weight. It can be installed by means of two bolts. The set bolt pitch is the same as that of the square flange type.

7. LF,FTC,FD,PFTD and PFTD-G type two bolt flange are for use with SB(or SB-G) and SA (or SA-G) type insert ball bearing only.

SALF-G, SBLF-G, SALFTC-G, SBLFTC-GSAFD-G, SBFD-GSAPFTD, SBPFTD, OR SAPFTD-G, SBPFTD-GLF, LFTC,FDPFTD,PFTD-G

Material: Grey Iron Bolt Configuration: Round Hole Ductile Square Hole

8. Flange bracket units

UCFB

This type has three set holes on only one side of the flange. This type of bearing unit used where the mounting space is limited, and the housing can be fixed on only one side,

9. Adjustable flange units

UCFA

This type has two bolt base with one side adjustable, enabling distance from center of shaft to be varied

10. Take up units

UCT, NAT, UCK, UCST

This type is applied to the machines in which the center of main shaft need free alignment.



16

11. Pressed housing pillow blocks

SAPP, SBPP

Pressed housings are with light weight and simple structure and consist of two pieces of pressed steel plates. This type is applied to the machine whose rotating speed is low or medium, or the machine with light load. The insert ball bearing for the pressed housings are usually SA or SB series.

12. Pressed housing round flange units

SAPF, SBPF

This type consists of pieces pf pressed steel plates, mounted with SA2 or SB2. It has light weight and simple structure which is applied to the machine of which the rotating speed is low or medium, or the machine load is light.

13. Pressed housing flange units

SAPFT, SBPFT

This type has the same function as the pressed round flange housing. It can be used where the mounting space is limited, because it takes smaller space.

14. Pressed housing oval flange units

SAPFL, SBPFL

This type has only two bolts holes. It needs much smaller mounting space. Its function is the same as the above mentioned pressed flange housings.


Performance & Specialty of Engineering Plastics Thermoplastic housings are specially to meet particular engineering demand for food, beverage and chemical industry. While the maintenance and handling (weight and delivery) are better than in the east iron housings. It was proven to stand in hardworking conditions for all applications of the industry in all of the world.

Thermoplastic housing can be composed with Chrome steel bearing insert that the best meet your particular budget and performance needs or choose stainless bearing inserts for the maximum corrosion resistance.

Thermoplastic housing designed to meet all of the most important engineering demand for:

1. Frequent washdowns2. Corrosion resistance3. Resistance to food and liquid contamination4. Exposure to harsh chemicals5. Exposure to high humidity6. Re-greasable fittings7. Operating temperature -35 to 102C

Because of their corrosion-resistant and non-magnetic properties, thermoplastic housings are used in a wide variety of industries:

1. Food processing2. Canning3. Bolting4. Pharmaceutical5. Chemical Processing

17


18

Properties of PBT Unit Test Method

MechanicalTernsile strength at yield at breakElongation at yieldat breakTensile ModulusFlexural yield strengthFlexural modulusNothced impact strength charpyNotched impact strength IZODHardness, H358/10 H358/20 Rockwell

N/mm2

N/mm2

%%

N/mm2

N/mm2

N/mm2

K/m2

J/mN/mm2

N/mm2

ASTMD638ASTMD638ASTMD638ASTMD638ASTMD638ASTMD790ASTMD790DIN 53453ASTMD256DIN 53456DIN 53456ASTMD758

115

3

8000170

700012

100104101

L102

ThermalOxygen index2

Flame retardancy2

(1/6mm thickness)Heat resistance: Vicat method BThermal conductivityMould shrinkage flowCross flow direction

%N/mm2

CW/m2 C

%%

ASTMD2836UL stand 94

ASTMD1525ASTMC177

ASTMD1299ASTMD1299

1994HB

210-2150.19

0.4-0.460.6-0.8

PhysicalWater absorption24 Hrs. 23 C N/mm2

ASTMD5700.06

Chemical media CImmulsion %

days% Retensionof strength

Acids

10% Hydrochioric

23 30 89

23 90 85

23 180 82

10% Sulfuric 23 30 97

23 90 94

23 180 90

36% Sulfuric (Battery)

23 30 97

23 180 96

66 30 84

66 180 35

10% Acetic 23 30 89

23 180 88

Bases

5% Potassium Hydroxide

23 30 83

% 90 10

10% Sodium Hydroxide

23 30 2

23 180

10% Ammorium Hydroxide

23 30 90

23 90 87

23 180 58

Organic Solvents

Ethyl Alcohol 23 30 99

23 180 58

Methyl Alcohol 23 30 91

23 180 76

Isopropyl-Alcohol

23 30 100

23 180 100

Isopropyl-Alcohol & Water (50:50)

23 30 93

23 180 96

Tupentine 23 180 92

23 30 66

Acetone 23 180 63

23 30 90

Chemical resistance


IndexINSERT BALL BEARINGUNITS

UC 200, RB......................... UC300...................................UCX........................................NA200(HC200)...............NA300..................................UK200...................................UK300...................................ER200...................................SER 200...............................SA ,SA-G,CSA 200..........SB,SB-G,CSB 200............SAF, SAFG,CSAF 200...SA-F, CSA-F.......................NAA........................................CS............................................ORAE.....................................

ECCENTRIC LOCKINGCOLLARS

A-200.....................................34A-300.....................................35

ADAPTERS

HE............................................H...............................................

PILLOW BLOCKS

UCP 200...............................UCP 300...............................NAP 200...............................NAP 300...............................NAPK 200............................UKP+H 200.........................UKP+H 300.........................SBP-G 200...........................SAP-G 200..........................SBLP-G 200........................SALP-G 200........................

UCAK 200...........................UCPK 200............................UCPX.....................................UCPH 200...........................UCPA 200...........................UCPA-A 200......................UCPW 200..........................UCPG 200...........................SBPP 200............................SAPP 200............................UCF 200..............................UCF 300..............................UCFX.....................................NAF 200..............................NAF 300..............................NAFU 200...........................UKF+H 200.........................UKF+H 300.........................SAF-G 200..........................UCFL 200............................UCFL 300............................NAFL 200............................NAFL 300............................NAFLU 200........................UCFT 200............................UKFL+H 200......................UKFL+H 300......................SBFL-G 200.......................SBLF-G 200.......................SALF-G 200.......................SBFLTC-G 200.................SAFLTC-G 200.................SBFW, SBFD-G 200......SAFW, SAFD-G 200......SBPFTD-G 200.................SAPFTD-G 200.................SBPFL 200..........................SAPFL 200.........................UCFC 200...........................NAFC 200...........................UKFC+H 200.....................UCT 200..............................NAT 200..............................UCK 200..............................

UCST 200.....................UCC 200.......................UCFB 200....................UCFA 200....................UCHA 200...................SBPF 200.....................SAPF 200.....................SBPFT 200..................SAPFT 200..................209..................................211.....................................S.UCP200.....................S.UCF200.....................S.UCFL200...................S.UCPA200...................S.UCT200.....................S.UCFC200..................S.UCHA200.................S.UCFB200..................

20212223242526272829303132323333

4849505152535455565657585960616263646566676869707172737475757676777778787979808182838485

3738394041424344454647

86 87 88 89 90 91 91 92 9293939494959596969797

3636

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