Metric single-row tapered roller bearings
30272 Tapered Roller Bearing Dimensions & Specifications
30272 tapered roller bearing: 360 mm bore (d), 680 mm outside diameter (D), 165 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 | 360 mm |
|---|---|
| Outside diameter D | 680 mm |
| Overall width T | 165 mm |
| Inner-ring width B | 150 mm |
| Outer-ring width C | 125 mm |
| Mass | 260 kg |
| Catalogue dynamic load Cr | 3690 kN |
| Catalogue static load Cor | 6300 kN |
Mounting dimensions & additional parameters (12)
| Abutment dimension Da Da | 551 mm |
|---|---|
| Abutment dimension Db Db | 646 mm |
| Abutment dimension da da | 394 mm |
| Abutment dimension db db | 416 mm |
| Minimum chamfer r12 r12 | 7.5 mm |
| Minimum chamfer r34 r34 | 7.5 mm |
| Factor Y Y | 1 |
| Factor Y0 Y0 | 0.6 |
| Factor e e | 0.6 |
| Maximum fillet ra ra | 6 mm |
| Maximum fillet rb rb | 6 mm |
| Load centre dimension a a | 172 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 30272?
For 30272, the complete bearing width T is 165 mm; the inner-ring width B is 150 mm. The outer-ring width C is 125 mm. Check T against the assembly drawing; the separate ring widths describe different parts.
Which mounting dimensions are listed for 30272?
The 30272 catalogue lists da = 394 mm; Da = 551 mm; ra ≤ 6 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 30272?
The catalogue reference mass for 30272 is 260 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.