Fast delivery low price 51209 Thrust Ball Bearing 45x73x20mm
Thrust ball bearings are designed to withstand thrust loads at high speeds and consist of annular rings with ball rolling grooves. Because the ferrule is in the shape of a pad, the thrust ball bearing is divided into two types: flat bottom pad type and self-aligning spherical pad type. In addition, this bearing can withstand axial loads, but not radial loads.
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Feature
Our products are made of high-quality raw materials, GCR15 bearing steel forged, high-precision CNC machine polishing, durable, built-in high-strength rolling elements. With better bearing capacity, steel balls are more wear-resistant. After many inspections and calculations before leaving the factory, the bearing quality is ensured.
Specification
| Product Name | Thrust Ball Bearing |
|---|---|
| Shaft/Housing Washer Material | Chromium Steel (GCr15) |
| Bearing Ball Meterial | Chromium Steel (GCr15) |
| Cage Material | Stamping Steel |
| Model | 51209 |
| Outer diameter | 73mm |
| the inside diameter of | 45mm |
| Bearing size | 45x73x20mm |
| Dynamic Load Rating (Cr) | 47.7kN |
| Static Load Rating (Cor) | 105kN |
| Limiting Speed (Grease) | 2600rpm |
| Limiting Speed (Oil) | 4000rpm |
| Service | OEM Service |
| Sealing type | You can choose Metal seal Or Rubber seal |
| Is customized | Yes (Drawings required) |
| Related accessories | Oil seal,Circlip and housings etc. |
Feature
Single direction thrust ball bearings: consist of two washers with raceways, balls guided and cage. Washers have flat seating surfaces, and that is why they must be supported so that all balls can be evenly loaded. Bearings carry the axial load only in one direction. They are not able to carry radial forces.
- Double direction thrust ball bearings: have two cages with balls between the central shaft washer and two houding washers with flat seating surfaces. The shaft washer has raceways on both sides and is fixed on the journal. Bearings are able to carry only axial forces in both directions.
Parameter
| Bearing Number | Boundary Dimenssion (mm) | Mass （KG） | Basic Load Ratings(KN) | Limited Speed（rpm) | |||||
|---|---|---|---|---|---|---|---|---|---|
| d | D | T | rSmin | approx | Cr | Cor | Grease | Oil | |
| 51200 | 10 | 26 | 11 | 0.6 | 0.028 | 11.43 | 16.42 | 5500 | 7900 |
| 51201 | 12 | 28 | 11 | 0.6 | 0.031 | 11.88 | 18.24 | 5300 | 7600 |
| 51203 | 17 | 35 | 12 | 0.6 | 0.05 | 15.48 | 26.51 | 4600 | 6500 |
| 51204 | 20 | 40 | 14 | 0.6 | 0.077 | 20.07 | 36.00 | 3900 | 5600 |
| 51205 | 25 | 47 | 15 | 0.6 | 0.111 | 25.02 | 48.48 | 3500 | 5000 |
| 51206 | 30 | 52 | 16 | 0.6 | 0.137 | 26.37 | 55.68 | 3200 | 4700 |
| 51207 | 35 | 62 | 18 | 1.0 | 0.21 | 35.1 | 74.88 | 2800 | 4000 |
| 51208 | 40 | 68 | 19 | 1.0 | 0.27 | 42.3 | 94.56 | 2600 | 3700 |
| 51209 | 45 | 73 | 20 | 1.0 | 0.31 | 43.2 | 100.80 | 2500 | 3500 |
| 51210 | 50 | 78 | 22 | 1.0 | 0.378 | 43.65 | 106.56 | 2300 | 3200 |
| 51211 | 55 | 90 | 25 | 1.0 | 0.599 | 62.55 | 152.65 | 2000 | 2900 |
| 51212 | 60 | 95 | 26 | 1.0 | 0.673 | 66.15 | 171.84 | 1900 | 2700 |
| 51213 | 65 | 100 | 27 | 1.0 | 0.756 | 67.50 | 181.44 | 1800 | 2600 |
| 51214 | 70 | 105 | 27 | 1.0 | 0.793 | 68.40 | 191.04 | 1700 | 2500 |
| 51215 | 75 | 110 | 27 | 1.0 | 0.845 | 69.75 | 200.64 | 1700 | 2500 |
| 51216 | 80 | 115 | 28 | 1.0 | 0.931 | 70.65 | 209.28 | 1600 | 2300 |
| 51217 | 85 | 125 | 31 | 1.0 | 1.220 | 85.95 | 253.44 | 1500 | 2100 |
| 51218 | 90 | 135 | 35 | 1.1 | 1.690 | 105.30 | 312.00 | 1300 | 1900 |
| 51220 | 100 | 150 | 38 | 1.1 | 2.250 | 132.30 | 393.60 | 1200 | 1700 |
