6307 Bearing Dimensions
35 × 80 × 21 mm
✓ Verified starter recordThe standard 6307 bearing has a 35 mm bore, 80 mm outside diameter, and 21 mm width. This page provides a dimensional reference in millimeters and inches, plus nearby sizes for comparison.
6307 bearing size
| Dimension | Metric | Inches |
|---|---|---|
| Bore diameter (d) | 35 mm | 1.3780 in |
| Outside diameter (D) | 80 mm | 3.1496 in |
| Width (B) | 21 mm | 0.8268 in |
Inch values are metric conversions rounded to four decimal places.
What does 6307 mean?
6307 identifies a bearing in the 6300 dimensional series. For practical replacement work, the key fit dimensions are the bore, outside diameter and width. A part marked 6307 should therefore be checked against 35 × 80 × 21 mm before selection.
Suffixes such as seals, shields, internal clearance or manufacturer-specific variants can change construction or operating characteristics even when the principal dimensions remain the same. Confirm the exact manufacturer designation for critical applications.
Related bearing dimensions
6307 dimension FAQ
What is the bore of a 6307?
The bore diameter is 35 mm (1.3780 in).
What is the OD of a 6307?
The outside diameter is 80 mm (3.1496 in).
How wide is a 6307?
The bearing width is 21 mm (0.8268 in).