51213 Stamping Steel Cage, Bore 65 Mm, Axial Deep Groove Ball Bearings, Single Direction
The 51213 Thrust ball bearings are widely used in various small and medium-sized equipment requiring axial load capacity, including: automotive steering systems, machine tool spindles, industrial gearboxes, crane hooks, centrifuges, and precision instruments.
The 51213 bearing is a Axial deep groove ball bearings, Single direction with an inner diameter of 65 mm , an outer diameter of 100 mm, a width of 27 mm. It typically uses PN (ABEC-1) grade precision tolerances and GCr15, GCr15SiMn rings, GCr15, GCr15SiMn rolling mlement. Its dynamic axial rated load is approximately 63714 N, its static axial rated load is approximately 149666 N. Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Interchange code: NSK 51213, NTN 51213, FAG 51213, SKF 51213, STEYR 51213, KOYO 51213, NACHI 51213, SNR 51213, RHP 51213,
51213 bearings ( 65 mm x 100 mm x 27 mm) have the advantages of Suitable for high-speed applications, capable of withstanding unidirectional axial loads, with low friction and easy installation, and are therefore widely used in the Machine tool spindles, automotive steering systems, pumps, industrial machinery and instruments.
| Part Number | 51213 |
| Bearing Type | Axial deep groove ball bearings, Single direction |
| Interchangeable | FAG 51213 |
| Cage | JP = Stamping steel cage |
| Accuracy class | PN (ABEC-1) |
| Series [lb] | 512 series (512) |
| Bearing Mass - m | 1.5079 |
| Dimension | |
| Inside - d φ [inch] | 2.5591 |
| Outside - D Φ [inch] | 3.9370 |
| Thickness - T [inch] | 1.0630 |
| D1 [inch] | 2.6378 |
| d1 [inch] | 3.9370 |
| chamfer - r(min.) [inch] | 0.0394 |
| Performance | |
| Dynamic Axial - Ca [lbf] | 14322 |
| Static Axial - C0a [lbf] | 33644 |
| Fatigue Axial - Cua [lbf] | 1478 |
| Speed ratings (grease) - nB [min–1] | 4834 |
| Speed ratings (oil) - nG [min–1] | 3573 |
| Mounting dimensions | |
| da(min.) [inch] | 3.3858 |
| Da(max.) [inch] | 3.1102 |
| ra(max.) [inch] | 0.0394 |
| Minimum load coefficient | |
| A | 0.14 |
The 51213 Thrust ball bearings mainly consist of a shaft ring (which mates with the shaft), a housing ring (which mates with the bearing housing), steel balls, and a cage. They feature a separable design for easy installation and maintenance. Some models include dust covers or sealed structures.
Thrust ball bearings have high axial load capacity, are suitable for bearing pure axial loads, have high limiting speeds, low friction coefficients, and smooth operation. Their separable structure simplifies installation, results in a compact size, and minimizes space requirements.
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