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Pillow block ball bearing units

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DIMENSIONS

d

55.563 mm Bore diameter

d1

≈69.06 mm Shoulder diameter inner ring

A

60 mm Base width

A1

40 mm Top width

A5

37.5 mm Standout of end cover

B

55.6 mm Width of inner ring

B4

9 mm Distance from locking device side face to thread centre

H

63.5 mm Height of spherical seat centre

H1

24 mm Foot height

H2

126 mm Overall height

J

171.5 mm Distance between attachment bolts

J

max.181 mm Distance between attachment bolts

J

min.162 mm Distance between attachment bolts

L

219 mm Overall length

N

18 mm Diameter of attachment bolt hole

N1

27.5 mm Length of attachment bolt hole

s1

33.4 mm Distance from locking device side face to raceway centre
THREADED HOLE

RG

1/4-28 UNF Housing thread for the grease fitting

R1

4.5 mm Axial position of the housing thread

45 ° Angular position of the housing thread
GREASE FITTING

DN

6.5 mm Diameter of head sphere of grease fitting

SWN

7 mm Hexagonal key size for the grease fitting

GN

1/4-28 SAE-LT Thread of the grease fitting
DOWEL PINS

J6

201 mm Distance of dowel pins

J7

21 mm Axial offset of dowel pins

N4

4 mm Recommended diameter for dowel pins

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About us

WARD Bearing Industries Limited is a stockist and supplier of industrial bearings.Products cover more than 0.1 million items with ball&roller bearing types. WARD Bearing has been dedicating to improve the performance of bearings by supplying high-grade and reliable products.We always bear in mind that only excellent quality and considerate service can make us alive and strong in the competition.

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  • WARD BEARING CO.,LIMITED
  • +86 010 88684630sale@wardbearing.com
  • 17#2108,SHOUER Mobo International Center,Yanshun Road, Yanjiao Economic and Technological Development Zone,Beijing east, China.
  • Copyright © 2026 WXBZ BEARING CO.,LIMITED  All Rights Reserved.

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