1/4 inch ball bearings R4

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Part Number R4
Bearing type BALL
Structure Single Row
Load Direction Radial
Seal type Open
Bore diameter(d) 1/4″︱6.35mm
Outer diameter(D) 5/8″︱15.875
Width(B) 0.1960″︱4.978mm
material Chrome steel 52100(Gcr15)
ring material Chrome steel 52100(Gcr15)
cage material 300 Series Stainless Steel
ball material Chrome steel 52100(Gcr15)
shields material 300 Series Stainless Steel
Grade ABEC-1(higher grade available)
Clearance C0(other clearance available)
BALL SIZE(mm)  2.381mm
BALL QTY 8
lubrication grease(oil available)
Temperature Range -30℃~130℃
weight(g) 4.46
ISO9001:2015 PASSED
REACH PASSED
ROHS PASSED
Dynamic Load Rating (Cr) 1259 N
Static Load Rating (Cor)  498  N
14 inch ball bearings d

BEARING INTERCHANGE

RUNSTAR NMB NTN ADR GRW EZO TIMKEN
R4 R-4 R4 Y1/4 6BR1/4A R4
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