SKF self-aligning ball bearing designation follow a system that may consist of a basic designation with or without one or more prefixes and/or suffixes.
|
3 |
Suffixes - Internal design |
|
E |
Optimized internal design for increased load carrying capacity |
|
4 |
Suffixes - External design (seals, snap ring groove etc.) |
|
-2RS1 |
Contact seal, NBR, on both sides |
|
K |
Tapered bore, taper 1:12 |
|
5 |
Suffixes - Cage design |
|
M |
Machined brass cage, ball centred |
|
TN9 |
Glass fibre reinforced PA66 cage, ball centred |
|
6.1 |
Suffixes - Materials, heat treatment (n.a.) |
|
6.2 |
Suffixes - Accuracy, clearance, preload, quiet running |
|
C2 |
Radial internal clearance smaller than Normal |
|
C3 |
Radial internal clearance greater than Normal |
|
6.3 |
Suffixes - Bearing sets, matched bearings (n.a.) |
|
6.4 |
Suffixes - Stabilization (n.a.) |
|
6.5 |
Suffixes - Lubrication |
|
W64 |
Solid Oil |
|
6.6 |
Suffixes - Other variants (n.a.) |
oterh articles about SKF ball bearings
