Detailed description
D-3637-A bearings ( 380 mm x 560 mm x 130 mm) have the advantages of Composite load, high speed, high rigidity, and are therefore widely used in the rotary tables of oil and gas drilling rigs.

| Part Number | D-3637-A |
| Design type | TTDFLK 1: Two single tapered outer races; One flat inner race; Inner-ring bore keyway (optional); One outer-ring spacer with oil slots |
| Bearing Type | Double-acting thrust tapered roller bearing |
| Interchangeable | TIMKEN D-3637-A |
| Manufacturer Part Code | D-3637-A |
| Cage | brass cage |
| Units | Inch |
| Tolerance class | PN (ABEC-1) |
| Thrust Race Number | Double |
| Cage type | MB |
| C0a Axial Static [lbf] | 2291369 |
| Ca1 Dynamic (1 Million Revolutions) [lbf] | 510788 |
| Ca90 Dynamic (90 Million Revolutions) [lbf] | 132400 |
| d φ Inside [inch] | 14.9606 |
| Do [inch] | 22.0472 |
| Dm [inch] | 21.2120 |
| T Width [inch] | 5.1181 |
| B [inch] | 1.2598 |
| r Fillet Radius [inch] | 0.1181 |
| R (Max) Shaft Fillet Radius [inch] | 0.1102 |
| da Mounting dimensions [inch] | 16.5354 |
| Db Mounting dimensions [inch] | 20.4370 |
| f Keyway Dimensions [inch] | 1.7717 |
| rk Keyway Dimensions [inch] | 0.3937 |
| Weight [lb] | 211.6416 |
The D-3637-A Thrust angular contact ball bearings are mainly composed of precision-ground steel balls, hardened and ground steel raceways, and a brass (or bronze) cage. Their core characteristic is their ability to simultaneously withstand axial thrust loads and a certain amount of radial load, and they also feature low friction, quiet operation, and suitability for high-speed operation.















