Page 923 - Rollingbearings

Designation system

Designation system

Group 1 Group 2 Group 3 / Group 4
4.1 4.2 4.3 4.4 4.5 4.6

Preixes

Basic designation
Listed in table 4, page 30

Sufixes
Group 1: Internal design
E Optimized internal design

Group 2: External design (seals, snap ring groove, etc.)
N1 One locating slot in the housing washer
N2 Two locating slots in the housing washer, 180° apart

Group 3: Cage design
– • Stamped steel cage, roller centred, for E design bearings size ≤ 68
• Machined brass cage, shaft washer centred, for bearings without any designation sufix
F Machined steel cage, shaft washer centred
F3 Machined spheroidal cast iron cage, shaft washer centred
M Machined brass cage, shaft washer centred

Group 4.1: Materials, heat treatment

Group 4.2: Accuracy, clearance, preload, quiet running

Group 4.3: Bearing sets, matched bearings

Group 4.4: Stabilization

Group 4.5: Lubrication

Group 4.6: Other variants
VE447(E) Shaft washer with three equally­spaced threaded holes to accommodate hoisting tackle
The E indicates that appropriate eye bolts are supplied with the bearing
VE710(E) Housing washer with three equally­spaced threaded holes to accommodate hoisting tackle
The E indicates that appropriate eye bolts are supplied with the bearing
VU029 Shaft washer modiied for applications with small axial clearance

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