Metric single-row tapered roller bearings
31324 Tapered Roller Bearing Dimensions & Specifications
31324 tapered roller bearing: 120 mm bore (d), 260 mm outside diameter (D), 68 mm overall width (T). Review the available technical values below. Matching dimensions alone do not confirm interchangeability between designations or suffixes.
Technical specifications
| Bore d | 120 mm |
|---|---|
| Outside diameter D | 260 mm |
| Overall width T | 68 mm |
| Inner-ring width B | 62 mm |
| Outer-ring width C | 42 mm |
| Mass | 16 kg |
| Catalogue dynamic load Cr | 530 kN |
| Catalogue static load Cor | 735 kN |
Mounting dimensions & additional parameters (12)
| Abutment dimension Da Da | 246 mm |
|---|---|
| Abutment dimension Db Db | 244 mm |
| Abutment dimension da da | 134 mm |
| Abutment dimension db db | 145 mm |
| Minimum chamfer r12 r12 | 4 mm |
| Minimum chamfer r34 r34 | 3 mm |
| Factor Y Y | 0.7 |
| Factor Y0 Y0 | 0.4 |
| Factor e e | 0.83 |
| Maximum fillet ra ra | 2.5 mm |
| Maximum fillet rb rb | 2.5 mm |
| Load centre dimension a a | 82 mm |
Fields without confirmed values are omitted. Final supply configuration and application suitability require technical confirmation.
Selection & installation
Which width should I use when checking 31324?
For 31324, the complete bearing width T is 68 mm; the inner-ring width B is 62 mm. The outer-ring width C is 42 mm. Check T against the assembly drawing; the separate ring widths describe different parts.
Which mounting dimensions are listed for 31324?
The 31324 catalogue lists da = 134 mm; Da = 246 mm; ra ≤ 2.5 mm. Check these symbols against the bearing drawing and the shaft/housing shoulders; they are not shaft or housing fit tolerances.
What is the reference mass of 31324?
The catalogue reference mass for 31324 is 16 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.