Detailed description
N-3217-A bearings ( 1397.33 mm x 1650.87 mm x 233.375 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 | N-3217-A |
| Design type | DTVL: Double-row angular contact construction, upper and lower complement of balls |
| Bearing Type | Double-row (two direction) angular contact thrust ball bearing |
| Interchangeable | TIMKEN N-3217-A |
| Manufacturer Part Code | N3217A |
| Series | DTVL |
| Units | Metric |
| Tolerance class | PN (ABEC-1) |
| Coa Upper Static [lbf] | 3361967 |
| Co Upper Dynamic [lbf] | 338061 |
| Coa Lower Static [lbf] | 1025703 |
| d φ Inside [inch] | 55.0129 |
| D Φ Outside [inch] | 64.9948 |
| T Width [inch] | 9.1880 |
| T1 Cage Position [inch] | 7.1874 |
| r Fillet Radius [inch] | 0.2520 |
| d1 [inch] | 55.1400 |
| D1 [inch] | 61.1251 |
| D2 [inch] | 59.9999 |
| E1 [inch] | 58.4999 |
| E (Max) Shoulder Diameter Housing [inch] | 59.9999 |
| Weight [lb] | 1391.1026 |
The N-3217-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.















