When searching for part numbers starting with zero, also check the letter “O”. More search tips...
When searching for part numbers starting with the number one, also check the letter “I.”
We have organized similar types of parts together to simplify searches.
- Ball Bearing Group Numbers start with the numeral 1
- Tapered Cone Group Numbers start with the numeral 2
- Tapered Cup Group Numbers start with the numeral 3
- Tapered Cone & Cup Assembly Group Numbers start with the numeral 4
- Straight & Curved Roller Bearing Group Numbers start with the numeral 5
Special Notes:
USA FSN bearing numbers have now added two zeroes in the 5th and 6th positions. For example, 3100-00-001-4689 is the same as 3100-001-4689.
EJ and ESJ prefixes on RBC needle bearings may be listed with E prefixes, representing internal design.
Tapered bearing groups with the notation "Chamfer Differs From Adjoining Group” refers to cones and/or cups that have identical dimensions and angles of taper, but having differences only in their chamfer or radius.
The notation "Taper Differs From Adjoining Group" is used when consecutive groups containing tapered cones and cups show identical dimensions, but with different angles of taper in their internal construction.