Metric single-row tapered roller bearings
30340 Tapered Roller Bearing Dimensions & Specifications
30340 tapered roller bearing: 200 mm bore (d), 420 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 | 200 mm |
|---|---|
| Outside diameter D | 420 mm |
| Overall width T | 89 mm |
| Inner-ring width B | 80 mm |
| Outer-ring width C | 67 mm |
| Mass | 52.3 kg |
| Catalogue dynamic load Cr | 1030 kN |
| Catalogue static load Cor | 1390 kN |
Mounting dimensions & additional parameters (12)
| Abutment dimension Da Da | 372 mm |
|---|---|
| Abutment dimension Db Db | 391 mm |
| Abutment dimension da da | 251 mm |
| Abutment dimension db db | 229 mm |
| Minimum chamfer r12 r12 | 6 mm |
| Minimum chamfer r34 r34 | 5 mm |
| Factor Y Y | 1.6 |
| Factor Y0 Y0 | 0.88 |
| Factor e e | 0.37 |
| Maximum fillet ra ra | 5 mm |
| Maximum fillet rb rb | 4 mm |
| Load centre dimension a a | 81.4 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 30340?
For 30340, 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 30340?
The 30340 catalogue lists da = 251 mm; Da = 372 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 30340?
The catalogue reference mass for 30340 is 52.3 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.