TIMKEN 3981-3920-B tapered bearings with Flange
Also known as : 3981-3920-B
- Inside Diameter: 58.738 mm
- Outside Diameter: 112.713 mm
- Width: 11.113 mm
- Basic dynamic load rating: 139 kN
- Basic static load rating: 191 kN
TIMKEN 3981-3920-B Bearing
TIMKEN 3981-3920-B Bearing details
| Series | 3900 |
|---|---|
| model | 3981-3920-B |
| Cone Part Number | 3981 |
| Cup Part Number | 3920-B |
| Design Units | Imperial |
| Cage Type | Stamped Steel |
| Bearing Weight |
1.400 Kg 3.00 lb |
| Dimensions | |
| d - Bore |
58.738 mm 2.3125 in |
| D - Cup Outer Diameter |
112.713 mm 4.4375 in |
| D1 - Flange Outer Diameter |
117.373 mm 4.6210 in |
| B - Cone Width |
30.048 mm 1.1830 in |
| C - Cup Width |
23.813 mm 0.9375 in |
| C1 - Cup Flange Width |
4.763 mm 0.1875 in |
| T - Bearing Width to Flange |
11.113 mm 0.4375 in |
| T1 - Bearing Width |
30.163 mm 1.1875 in |
| Abutment and Fillet Dimensions | |
| R - Cone Backface "To Clear" Radius |
3.600 mm 0.14 in |
| r - Cup Backface "To Clear" Radius |
3.30 mm 0.130 in |
| da - Cone Frontface Backing Diameter |
67.10 mm 2.64 in |
| db - Cone Backface Backing Diameter |
72.90 mm 2.87 in |
| Da - Cup Frontface Backing Diameter |
108.97 mm 4.29 in |
| Ab - Cage-Cone Frontface Clearance |
2 mm 0.08 in |
| Aa - Cage-Cone Backface Clearance |
1.5 mm 0.06 in |
| a - Effective Center Location |
-4.6 mm -0.18 in |
| Basic Load Ratings | |
| C90 - Dynamic Radial Rating (90 million revolutions) |
36000 N 8090 lbf |
| C1 - Dynamic Radial Rating (1 million revolutions) |
139000 N 31200 lbf |
| C0 - Static Radial Rating |
191000 N 43000 lbf |
| Ca90 - Dynamic Thrust Rating (90 million revolutions) |
24800 N 5570 lbf |
| Factors | |
| K - Factor | 1.45 |
| e - ISO Factor | 0.40 |
| Y - ISO Factor | 1.49 |
| G1 - Heat Generation Factor (Roller-Raceway) | 75.2 |
| G2 - Heat Generation Factor (Rib-Roller End) | 21.3 |
| Cg - Geometry Factor | 0.109 |
As TIMKEN bearing distributor, Nodes bearings have TIMKEN 3981-3920-B bearings in stock, TSF (Tapered Single with Flange) Imperial , Tapered roller bearings.
Like the TS bearing design, the TSF design consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft. TSF bearings have flanged cups to facilitate axial location and accurately align seals in through-bored housings.
