Metric single-row tapered roller bearings
32980 Tapered Roller Bearing Dimensions & Specifications
32980 tapered roller bearing: 400 mm bore (d), 540 mm outside diameter (D), 87 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 | 400 mm |
|---|---|
| Outside diameter D | 540 mm |
| Overall width T | 87 mm |
| Inner-ring width B | 82 mm |
| Outer-ring width C | 71 mm |
| Mass | 52.7 kg |
| Catalogue dynamic load Cr | 1250 kN |
| Catalogue static load Cor | 2700 kN |
Mounting dimensions & additional parameters (12)
| Abutment dimension Da Da | 508 mm |
|---|---|
| Abutment dimension Db Db | 530 mm |
| Abutment dimension da da | 439 mm |
| Abutment dimension db db | 417 mm |
| Minimum chamfer r12 r12 | 5 mm |
| Minimum chamfer r34 r34 | 4 mm |
| Factor Y Y | 1.5 |
| Factor Y0 Y0 | 0.82 |
| Factor e e | 0.4 |
| Maximum fillet ra ra | 4 mm |
| Maximum fillet rb rb | 3 mm |
| Load centre dimension a a | 100.8 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 32980?
For 32980, the complete bearing width T is 87 mm; the inner-ring width B is 82 mm. The outer-ring width C is 71 mm. Check T against the assembly drawing; the separate ring widths describe different parts.
Which mounting dimensions are listed for 32980?
The 32980 catalogue lists da = 439 mm; Da = 508 mm; ra ≤ 4 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 32980?
The catalogue reference mass for 32980 is 52.7 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.