634
R-1640
RF-1640
-
4
16
5
5.24
18
1
1
634 is a Miniature Bearing, a smaller type of deep groove ball bearing with a bore diameter of less than 10mm.
Available in metric series with multiple sealing options including ZZ steel shields and RS rubber seals.
NMB Equivalent: R-1640
Flange Type: RF-1640
Flange Type 2: RF-1640zz
Bore (d): 4 mm
Outer (D): 16 mm
Width (B): 5 mm
D1: 18 mm
C1: 1 mm
C2: 1 mm
Weight: 5.24 g
Some non-standard or currently out-of-stock bearings may not be immediately available. If you have specific requirements, feel free to contact us — we will do our best to confirm lead times and provide alternative solutions.