54318 Stamping Steel Cage, Bore 75 Mm, Axial Deep Groove Ball Bearings, Double Directions
The 54318 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 54318 bearing is a Axial deep groove ball bearings, Double directions with an inner diameter of 75 mm , an outer diameter of 155 mm, a width of 97.2 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 190863 N, its static axial rated load is approximately 452412 N. Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Interchange code: KOYO 54318, STEYR 54318, FAG 54318, NACHI 54318, NSK 54318,
54318 bearings ( 75 mm x 155 mm x 97.2 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 | 54318 |
| Bearing Type | Axial deep groove ball bearings, Double directions |
| Interchangeable | FAG 54318 |
| Cage | JP = Stamping steel cage |
| Accuracy class | PN (ABEC-1) |
| Series [lb] | 543 series (543) |
| Bearing Mass - m | 14.8590 |
| Dimension | |
| Inside - d φ [inch] | 2.9527 |
| Outside - D Φ [inch] | 6.1024 |
| Thickness - T2 [inch] | 3.8268 |
| D1 [inch] | 3.6614 |
| B [inch] | 0.7480 |
| chamfer - r(min.) [inch] | 0.0591 |
| r1(min.) [inch] | 0.0394 |
| R [inch] | 4.4094 |
| A [inch] | 1.4370 |
| Performance | |
| Dynamic Axial - Ca [lbf] | 42906 |
| Static Axial - C0a [lbf] | 101702 |
| Fatigue Axial - Cua [lbf] | 3757 |
| Speed ratings (grease) - nB [min–1] | 3872 |
| Speed ratings (oil) - nG [min–1] | 1960 |
| da [inch] | 3.5433 |
| Da(max.) [inch] | 4.7244 |
| ra(max.) [inch] | 0.0591 |
| ra1(max.) [inch] | 0.0394 |
| Minimum load coefficient | |
| A | 1.2 |
The 54318 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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