Metric single-row tapered roller bearings
31338 Tapered Roller Bearing Dimensions & Specifications
31338 tapered roller bearing: 190 mm bore (d), 400 mm outside diameter (D), 101 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 | 190 mm |
|---|---|
| Outside diameter D | 400 mm |
| Overall width T | 101 mm |
| Inner-ring width B | 92 mm |
| Outer-ring width C | 65 mm |
| Mass | 54.1 kg |
| Catalogue dynamic load Cr | 1120 kN |
| Catalogue static load Cor | 1630 kN |
Mounting dimensions & additional parameters (12)
| Abutment dimension Da Da | 355 mm |
|---|---|
| Abutment dimension Db Db | 385 mm |
| Abutment dimension da da | 249 mm |
| Abutment dimension db db | 220 mm |
| Minimum chamfer r12 r12 | 5 mm |
| Minimum chamfer r34 r34 | 4 mm |
| Factor Y Y | 0.8 |
| Factor Y0 Y0 | 0.5 |
| Factor e e | 0.73 |
| Maximum fillet ra ra | 5 mm |
| Maximum fillet rb rb | 4 mm |
| Load centre dimension a a | 115 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 31338?
For 31338, the complete bearing width T is 101 mm; the inner-ring width B is 92 mm. The outer-ring width C is 65 mm. Check T against the assembly drawing; the separate ring widths describe different parts.
Which mounting dimensions are listed for 31338?
The 31338 catalogue lists da = 249 mm; Da = 355 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 31338?
The catalogue reference mass for 31338 is 54.1 kg. Confirm the supplied assembly and packed shipment weight separately when planning handling or transport.