UKFL211-J7
Holding a bearing marked NSK UKFL211 or NTN UKFL211D1 + H2311X or KOYO UKFL211J + H2311X? Ours is UKFL211-J7 — the same seat size, the same type and the same sealing and clearance design.
What this bearing is
UKFL211-J7 is a flanged housing unit with a 50 × 100 × 36 mm seat, execution: open. The manufacturer's cross-reference catalogue confirms full interchangeability for 5 designations, including NSK UKFL211, NSK UKFL211D1 + H2311X, NTN UKFL211D1 + H2311X.
Designation equivalents
⌀50 × 100 × 36 mm
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.