SKF bearing cross reference

Reading an SKF Bearing Designation

An SKF bearing designation is built from a basic number plus prefix and suffix codes. The basic number (for example, 6205) identifies the bearing type, series, and boundary dimensions. Everything else describes a modification — seals, shields, clearance, cage, or precision grade.

Common SKF suffixes and what they mean

Example: SKF 6205-2RS1 means a 6205 deep groove ball bearing with two contact rubber seals. The standard designation 6205-2RS has the same boundary dimensions and the same functional sealing, so it is the direct interchangeable equivalent.

What to check before replacing an SKF bearing

1. Write down the complete marking from the bearing face — basic number plus every suffix letter.
2. Translate the suffix using the table above. A 6205-2RS1 and a 6205-2Z are both 25×52×15 mm, but one is sealed and the other shielded — different contamination protection.
3. Confirm internal clearance. If the SKF bearing has C3, order a C3 equivalent, not the CN standard.
4. Check the cage and precision suffix (P6, P5, or special cage materials) against the application requirement.
5. Send the complete original marking with your RFQ so we can confirm the exact standard equivalent.

SKF Explorer and Standard SKF Bearings

SKF markets a performance line under the “SKF Explorer” name. Explorer bearings use the same basic numbers as standard SKF bearings but with improved internal geometry and materials. The boundary dimensions are identical, which means an Explorer 6205 and a standard 6205 are interchangeable in the same housing — and a standard-designation equivalent is also dimensionally interchangeable. The load and life ratings may differ, so for a direct performance match confirm the dynamic load rating (C) of the original bearing.

SKF Bearing Number Prefixes

Less common but worth knowing:

• W — stainless steel (e.g., W 6205)
• F — machined steel cage or flanged variants in some series
• E — optimized internal design in some roller bearing series

These prefixes change the bearing material or internal design, so they must be matched on the replacement, not ignored.

How to Use This Cross Reference

1. Locate your SKF bearing model number
2. Find the corresponding KIHOI model
3. Verify dimensions match
4. Request a quote

Popular SKF Equivalents

Contact us for specific model inquiries.