Metric single-row tapered roller bearings
30234 Tapered Roller Bearing Dimensions & Specifications
30234 tapered roller bearing: 170 mm bore (d), 310 mm outside diameter (D), 57 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 | 170 mm |
|---|---|
| Outside diameter D | 310 mm |
| Overall width T | 57 mm |
| Inner-ring width B | 52 mm |
| Outer-ring width C | 43 mm |
| Mass | 16.1 kg |
| Catalogue dynamic load Cr | 525 kN |
| Catalogue static load Cor | 690 kN |
Mounting dimensions & additional parameters (12)
| Abutment dimension Da Da | 282 mm |
|---|---|
| Abutment dimension Db Db | 297 mm |
| Abutment dimension da da | 207 mm |
| Abutment dimension db db | 189 mm |
| Minimum chamfer r12 r12 | 5 mm |
| Minimum chamfer r34 r34 | 4 mm |
| Factor Y Y | 1.4 |
| Factor Y0 Y0 | 0.77 |
| Factor e e | 0.43 |
| Maximum fillet ra ra | 4 mm |
| Maximum fillet rb rb | 3 mm |
| Load centre dimension a a | 59.8 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 30234?
For 30234, the complete bearing width T is 57 mm; the inner-ring width B is 52 mm. The outer-ring width C is 43 mm. Check T against the assembly drawing; the separate ring widths describe different parts.
Which mounting dimensions are listed for 30234?
The 30234 catalogue lists da = 207 mm; Da = 282 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 30234?
The catalogue reference mass for 30234 is 16.1 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.

