51104 Stamping Steel Cage, Bore 20 Mm, Axial Deep Groove Ball Bearings, Single Direction
The 51104 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 51104 bearing is a Axial deep groove ball bearings, Single direction with an inner diameter of 20 mm , an outer diameter of 35 mm, a width of 10 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 14567 N, its static axial rated load is approximately 26421 N. Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Interchange code: NSK 51104, KOYO 51104, NACHI 51104, FAG 51104, SKF 51104, STEYR 51104, SNR 51104, RHP 51104, NTN 51104,
51104 bearings ( 20 mm x 35 mm x 10 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 | 51104 |
| Bearing Type | Axial deep groove ball bearings, Single direction |
| Interchangeable | FAG 51104 |
| Cage | JP = Stamping steel cage |
| Accuracy class | PN (ABEC-1) |
| Series [lb] | 511 series (511) |
| Bearing Mass - m | 0.0816 |
| Dimension | |
| Inside - d φ [inch] | 0.7874 |
| Outside - D Φ [inch] | 1.3780 |
| Thickness - T [inch] | 0.3937 |
| D1 [inch] | 0.8268 |
| d1 [inch] | 1.3780 |
| chamfer - r(min.) [inch] | 0.0118 |
| Performance | |
| Dynamic Axial - Ca [lbf] | 3274 |
| Static Axial - C0a [lbf] | 5939 |
| Fatigue Axial - Cua [lbf] | 260 |
| Speed ratings (grease) - nB [min–1] | 11022 |
| Speed ratings (oil) - nG [min–1] | 9426 |
| Mounting dimensions | |
| da(min.) [inch] | 1.1417 |
| Da(max.) [inch] | 1.0236 |
| ra(max.) [inch] | 0.0118 |
| Minimum load coefficient | |
| A | 0.004 |
The 51104 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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