SR4-2Z
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SR4-2Z

Inch miniature ball bearings, open, stainless steel
C&H premium inch series instrument and precision miniature ball bearings are designed for compact applications, offering exceptional performance, low friction, and low maintenance. There are perfect for high-speed and precision requirements. Common applications include robotics, medical equipment, electronics, aerospace, automotive, precision instruments, hobby and RC models, and more.  Available with 52100 chrome steel or 440C stainless, ABEC-1 to AEBC-9P precision,  Z1V1 to Z4V4 noise and vibration, open or shielded. 

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TECHNICAL INFORMATION

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Dimensions
d 6.350 mm Bore diameter
D 15.875 mm Outside diameter
B/B1 4.978 mm Width
d1 8.2 mm Shoulder diameter inner ring
D1 13.03 mm Shoulder diameter outer ring
r 0.1 mm Chamfer
8 pcs Ball qty
2.3813 mm Ball diameter
≈m 4.54 g Weight
Performance
Cr 672 N Basic dynamic load rating
C0r 280 N Basic static load rating
36000 r/min Max speed (Grease)
43000 r/min Max speed (Oil)
P0(ABEC-1) Tolerane
P25 Clearance
Properties
Shield on both sides Sealing
None Locating feature outer ring
None Feature inner ring
440C Ring Material
440C Ball Material
304 Cage Material

INTERCHANGE CODE TABLE

NMB NHBB ISC/NSK NTN BARDEN RMB MPB NEW HAMPSHIRE SKF GRW FAG ADR MRC ND FAFNIR RHP "McMaster- Carr ABEC-1"
DDR-4ZZ
SSR-4ZZ
SR4BZZ
SRA4ZZ
SR4SS
RF8020X
SR4CHH
SR4PP
D/W R4-2Z
SS1/4Z-2Z
SR4.2Z

R-4FF-ST
SS77R-4
AS1KDD7



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