VLA201094-N
Holding a bearing marked RKS 21 1091 or ROLLIX 21-1091-01 or ROTERDE 231.20.1000.013? Ours is VLA201094-N — the same seat size, the same type and the same sealing and clearance design.
What this bearing is
VLA201094-N is a Slewing ring, 4 point contact bearing, external gear teeth, execution: open. The manufacturer's cross-reference catalogue confirms full interchangeability for the designation RKS 21 1091. For 2 designations (ROLLIX 21-1091-01, ROTERDE 231.20.1000.013) interchangeability is conditional — the difference usually lies in radial clearance or cage design, so compare the data sheets before fitting.
Designation equivalents
Before you replace it
This is a dimensional and design equivalent: the same seat size, the same bearing type and the same sealing and clearance design. It is not the same product — load ratings, tolerance class and grease may differ between manufacturers. For duty close to the limits or a critical application, check the datasheet of the specific design.
Where these equivalents come from
The base number of a standard bearing is an ISO standard — 6205 is 6205 at every manufacturer. Only the suffixes describing the design differ, and those are what we translate: shields, contact seals, cage and radial clearance. Designations that mean different things at different makers are deliberately omitted.