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SKF 638/4-2Z Shielded Miniature Ball Bearing 4mm x 9mm x 4mm

(Exc. 20% VAT)
(£12.29 Inc. VAT)
Available for prompt despatch.
Ashley Part Number
Inside Diameter (d):
Outside Diameter (D):
Width (B):
10 g

SKF Miniature Ball Bearing 638/4-2Z Metal Shielded

Miniature ball bearings are one of the most commonly used bearings within many different industries. Metal shielded type miniature bearings are manufactured with metal shields which are inserted into the outer raceway and fit in closely to the inner race. The shields are designed to provide protection against the ingress of moisture, dust and other foreign matter and also serve to retain the pre-filled grease in the bearing. Shields can be removed for applications where only 1 shield is required.

Technical Information
d: 4mm
D: 9mm
B: 4mm
Dynamic Load: 0.54 kN
Static Load: 0.18 kN
Fatigue Load Limit: 0.007 kN
Reference Speed: 140000 rpm
Limiting Speed: 70000 rpm
d1: 5.2mm
D2: 7.8mm
r1,2: 0.1mm
da min: 4.6mm
Da max: 8.4mm
ra max: 0.1mm



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