Metric single-row tapered roller bearings
30228 Tapered Roller Bearing Dimensions & Specifications
30228 tapered roller bearing: 140 mm bore (d), 250 mm outside diameter (D), 45.75 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 | 140 mm |
|---|---|
| Outside diameter D | 250 mm |
| Overall width T | 45.75 mm |
| Inner-ring width B | 42 mm |
| Outer-ring width C | 36 mm |
| Mass | 8.74 kg |
| Catalogue dynamic load Cr | 390 kN |
| Catalogue static load Cor | 515 kN |
Mounting dimensions & additional parameters (12)
| Abutment dimension Da Da | 228 mm |
|---|---|
| Abutment dimension Db Db | 240 mm |
| Abutment dimension da da | 169 mm |
| Abutment dimension db db | 154 mm |
| Minimum chamfer r12 r12 | 4 mm |
| Minimum chamfer r34 r34 | 3 mm |
| Factor Y Y | 1.4 |
| Factor Y0 Y0 | 0.76 |
| Factor e e | 0.44 |
| Maximum fillet ra ra | 3 mm |
| Maximum fillet rb rb | 2.5 mm |
| Load centre dimension a a | 48.9 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 30228?
For 30228, the complete bearing width T is 45.75 mm; the inner-ring width B is 42 mm. The outer-ring width C is 36 mm. Check T against the assembly drawing; the separate ring widths describe different parts.
Which mounting dimensions are listed for 30228?
The 30228 catalogue lists da = 169 mm; Da = 228 mm; ra ≤ 3 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 30228?
The catalogue reference mass for 30228 is 8.74 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.