Page 939 - Rollingbearings
P. 939
Designation system
Designation system 14
Group 1 Group 2 Group 3 / Group 4
4.1 4.2 4.3 4.4 4.5 4.6
Preixes
Basic designation
3612 R Single row cam roller with an NBR contact seal on
both sides
3057 C Double row cam roller with a cylindrical (lat)
outer ring running surface
3058 C Double row cam roller with a crowned outer ring
running surface
Sufixes
Group 1: Internal design
Group 2: External design (seals, snap ring groove, etc.)
-2RS1 NBR contact seal on both sides
-2Z Sheet steel shield on both sides
Group 3: Cage design
Group 4.1: Materials, heat treatment
Group 4.2: Accuracy, clearance, preload, quiet running
Group 4.3: Bearing sets, matched bearing
Group 4.4: Stabilization
Group 4.5: Lubrication
Group 4.6: Other variants
937
