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71938 ACD/P4A

super precision ball bearing 71938 ACD/P4A 190x260x33mm bearing bearing 190*260*33mm 71938 ACD/P4A bearings

Description

1 Size of spindle bearing 71938 ACD/P4A

Angular-Contact-Ball-Bearings Angular-Contact-Ball-Bearing-71938 ACDP4A-drawing

d 190 mm

D 260 mm

B 33 mm

d1 211.6 mm

d2 211.6 mm

D1 238.4 mm

r1,2 min. 2 mm

r3,4 min. 1 mm

a 69.2 mm

Calculation data

Basic dynamic load rating C 163 kN

Basic static load rating C0 208 kN

Fatigue load limit Pu 5.85 kN

Attainable speed for grease lubrication 4500 r/min

Attainable speed for oil-air lubrication 6700 r/min

Contact angle α 25°

Ball diameter Dw 22.225 mm

Number of balls z 28  

Mass bearing 4.35 kg


2 Product picture of 71938 ACD/P4A single row angular contact ball bearing

Super-Precision-Angular-Contact-Ball-Bearing-71938 ACD P4A

3 Application of super precision angular contact ball bearing 71938 ACD/P4A

Precision and ultra-precision angular contact ball bearings 71938 ACD/P4A are mainly used in machine tool industry spindles, textile machinery, woodworking machinery and other places where reliability, running accuracy and high speed are required.


4 Features of angular contact ball bearings 71938 ACD/P4A

● High precision

● Excellent high-speed performance

● High rigidity

● Good seismic performance


Besides bearing 71938 ACD/P4A, Freely get in touch with Mr Gavin Chu(gavinchu@sunrises-group.com) for more high precision angular contact ball bearings. 

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