At a glance
KOYO
Use the complete KOYO-labelled record, retaining any series and suffix details supplied with the part.
Choose a candidate whose documented assembly, settings and performance meet the actual duty.
TIMKEN
Use the complete TIMKEN assembly and distinguish it from a cone-only or cup-only record.
Choose a candidate after matching both installation geometry and the required endplay or preload.
Key differences
Typical design distinctions. The complete designation and current product specification take precedence.
Swipe the table horizontally to see both options →
| What to compare | KOYO | TIMKEN |
|---|---|---|
| Identification | Preserve full series and suffix | Preserve complete cup/cone or assembly numbers |
| Dimensions | Compare bore, outside diameter and total width | Check component and assembly widths separately |
| Axial setting | Use the specified setup method | Use the specified setup method |
| Load comparison | Confirm units and rating definition | Confirm the same rating definition |
| Housing fit | Check shoulder and corner clearances | Check shoulder and corner clearances |
| Application | Use a verified exact-model match | Do not substitute from a brand preference alone |
Before you choose
- A wheel-bearing application number can refer to a kit rather than one rolling bearing.
- A cross-reference is a candidate until seals, shoulders and settings are checked.
- Do not mix cup and cone components without an approved combination.
Check the actual model
Search a full designation, inspect its technical data, then compare candidate records. Similar names or dimensions do not guarantee interchangeability.
Coverage is the current BearingScope dataset, not a manufacturer's complete range. Missing fields and missing brands are not treated as equivalent.
Filters show recorded catalogue attributes. Open each candidate to confirm its exact specification.
A few things worth clarifying
Are matching cup and cone dimensions enough?
They are necessary but not sufficient; contact geometry, setting and performance must also be compatible.
Can I use a KOYO cone with a TIMKEN cup?
Do not assume interchangeability between components; use a qualified assembly.
Reference basis & limits
- Timken — Setting techniques for tapered roller bearings
- JTEKT / KOYO — Ball & Roller Bearing catalogue and bearing designation reference
Independent explanatory content; not a manufacturer endorsement or approval of a replacement. Verify current product data, fits, lubrication and operating conditions before applying a comparison.