Bearings
638/4-2Z SKF Deep groove ball bearings

TYPE: Ball bearings, Radial ball bearings, Single row, Without flange, With shields 2Z
Bearing 638/4-2Z SKF

Dimensions, mm

d
4,000
D
9,000
B
4,000

Weight, kg

0,001

Manufacturer:

SKF

Interchange:

ABC 684 2Z
EZO 684ZZ
ADR 638/4ZZ
ISC 684ZZS
NACHI 684ZZ
NMB L-940ZZ
NTN W684ZZA
RMB ULZ409
NSK 684ZZ
KOYO W684ZZ
GRW 684-2Z
BARDEN 38M455
MPB - TIMKEN SUPER PRECISION UL40CHH

Calculation data

Basic dynamic load rating, C
0,540 kN
Basic static load rating, Co
0,180 kN
Fatigue load limit, Pu
0,007 kN
Reference speed
140000 r/min
Limiting speed
70000 r/min
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