APOLLO BEARING INDEX

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Learn what every letter and number in a bearing part number actually means — seals, clearance, cage material, bore feature, precision.

Leave any field blank to match all sizes.

Browse all equipment

Pick a machine to see the bearings inside it. Each bearing links to its cross-reference list.

Browse manufacturer catalogs, interchange guides and reference documents. Each PDF opens in a new tab in your browser's viewer.

Reference data only — verify specifications before purchase Cross-reference data is provided as a convenience for general reference only. Apollo Industries USA makes no representations or warranties — express or implied — as to the accuracy, completeness, currentness, or fitness for any particular purpose of the information returned by this tool. Cross-references are derived from publicly-available manufacturer catalogs and third-party data; errors and omissions may exist. Always verify the original equipment manufacturer's specifications, fit, and application requirements before placing an order. Apollo Industries USA accepts no liability for losses, damages, or downtime arising from reliance on this data.

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Apollo Bearing Index: Bearing Interchange & Cross-Reference Tool

Find the right bearing fast. The Apollo Bearing Index searches 90,000+ cross-references across 100+ bearing brands — including SKF, FAG, NSK, NTN, Timken and Koyo. Enter any manufacturer part number to find equivalent bearings, decode what every prefix and suffix means, search by dimensions (ID, OD, width), or find the bearings inside a specific OEM machine.

Browse bearings

How to cross-reference a bearing

  1. Enter the OEM part number you have (for example, SKF 6205-2RS1/C3).
  2. Review the equivalent bearings from other brands, matched on dimensions and specifications.
  3. Confirm the bore (ID), outside diameter (OD), width and suffixes — seals, internal clearance and cage — so the replacement truly fits.
  4. Shop the matching bearing or request a quote for availability and pricing.

Bearing Interchange FAQ

What is a bearing interchange or cross-reference?

A bearing interchange (or cross-reference) is an equivalent bearing from a different manufacturer that shares the same critical dimensions and specifications, so it can replace the original in the same application.

How do I find an equivalent for an SKF, FAG or NSK part number?

Enter the manufacturer part number in the Apollo Bearing Index. It returns matching bearings from 100+ brands with the same bore, outside diameter, width and key features so you can choose an equivalent.

Do suffixes like 2RS, ZZ or C3 matter when cross-referencing?

Yes. Suffixes describe seals or shields (2RS, ZZ), internal clearance (C3, C4), cage material and precision. A correct interchange should match these features, not just the base number.

What do the prefix and suffix in a bearing part number mean?

Use the "Decode part number" option — paste any bearing PN (for example, SKF 6205-2RS1/C3) and the Apollo Bearing Index explains what every prefix and suffix means: seals or shields, internal clearance, cage material, bore type and precision class. Decode it first so you cross-reference the exact equivalent.

Can I search for a bearing by its dimensions instead of a part number?

Yes. Use the "Find by dimensions" option and enter bore (ID), outside diameter (OD) and width in millimeters or inches to see every bearing that matches those sizes.

Can I find the bearings used in a specific machine or OEM equipment?

Yes. Use the "Find by equipment" option to choose a manufacturer and model, and the Apollo Bearing Index lists the bearings used in that machine — each one linked to its cross-reference list.

Are cross-referenced bearings guaranteed to be identical?

Cross-references are a reference aid compiled from manufacturer catalogs and third-party data. Always verify the original equipment manufacturer's specifications, fit and application requirements before purchasing.