Metric single-row tapered roller bearings
30252 Tapered Roller Bearing Dimensions & Specifications
30252 tapered roller bearing: 260 mm bore (d), 480 mm outside diameter (D), 89 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 | 260 mm |
|---|---|
| Outside diameter D | 480 mm |
| Overall width T | 89 mm |
| Inner-ring width B | 80 mm |
| Outer-ring width C | 67 mm |
| Mass | 60.7 kg |
| Catalogue dynamic load Cr | 1190 kN |
| Catalogue static load Cor | 1700 kN |
Mounting dimensions & additional parameters (12)
| Abutment dimension Da Da | 438 mm |
|---|---|
| Abutment dimension Db Db | 461 mm |
| Abutment dimension da da | 318 mm |
| Abutment dimension db db | 291 mm |
| Minimum chamfer r12 r12 | 6 mm |
| Minimum chamfer r34 r34 | 5 mm |
| Factor Y Y | 1.4 |
| Factor Y0 Y0 | 0.74 |
| Factor e e | 0.44 |
| Maximum fillet ra ra | 5 mm |
| Maximum fillet rb rb | 4 mm |
| Load centre dimension a a | 94.5 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 30252?
For 30252, the complete bearing width T is 89 mm; the inner-ring width B is 80 mm. The outer-ring width C is 67 mm. Check T against the assembly drawing; the separate ring widths describe different parts.
Which mounting dimensions are listed for 30252?
The 30252 catalogue lists da = 318 mm; Da = 438 mm; ra ≤ 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 30252?
The catalogue reference mass for 30252 is 60.7 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.