51305 - Single Direction Thrust Bearing QRL - 25x52x18mm
Thrust Ball Bearing Specification
Dimensions - d(inside diameter) 25 mm
Dimensions - D (outside diameter) 52 mm
Dimensions - B(width) 18 mm
Thrust Ball Bearing Description
A thrust bearing is a particular type of rotary bearing. These
bearings consist of three parts, a shaft and housing washer which
have annular grooves machined into them and a caged ball bearing
assembly which is sandwiched between the two washers. Assembly and
mounting is quite simple as the parts are able to be separated.
Thrust bearings are able to accommodate axial loads in a single
direction only and must not be subject to any radial load.
Clearance is provided in the bore of one of the raceways to allow
for alignment.
Thrust Ball Bearing Product number
| Bearing No. | Boundary dimensions | Basic load ratings(kN) | Limiting speed | Mass |
| mm | Dynamic | Static | rpm | Kg |
| d | D | T | Cr | Cor | Grease | Oil | ≈ |
| 51305 | 25 | 52 | 18 | 35.5 | 61.5 | 3,000 | 4,300 | 0.17 |
| 51306 | 30 | 60 | 21 | 42.8 | 78.5 | 2,400 | 3,600 | 0.26 |
| 51307 | 35 | 68 | 24 | 55.2 | 105 | 2,000 | 3,200 | 0.37 |
| 51308 | 40 | 78 | 26 | 69.2 | 135 | 1,900 | 3,000 | 0.53 |
| 51309 | 45 | 85 | 28 | 75.8 | 150 | 1,700 | 2,600 | 0.66 |
| 51310 | 50 | 95 | 31 | 96.5 | 202 | 1,600 | 2,400 | 0.92 |
| 51311 | 55 | 105 | 35 | 115 | 242 | 1,500 | 2,200 | 1.28 |
| 51312 | 60 | 110 | 35 | 118 | 262 | 1,400 | 2,000 | 1.37 |
| 51313 | 65 | 115 | 36 | 115 | 262 | 1,300 | 1,900 | 1.48 |
| 51314 | 70 | 125 | 40 | 148 | 340 | 1,200 | 1,800 | 1.98 |
| 51315 | 75 | 135 | 44 | 162 | 380 | 1,100 | 1,700 | 2.58 |
| 51316 | 80 | 140 | 44 | 160 | 380 | 1,000 | 1,600 | 2.69 |
| 51317 | 85 | 150 | 49 | 208 | 495 | 950 | 1,500 | 3.47 |
| 51318 | 90 | 155 | 50 | 205 | 495 | 900 | 1,400 | 3.69 |
| 51320 | 100 | 170 | 55 | 235 | 595 | 800 | 1,200 | 4.86 |
Thrust Ball Bearing Applications
1. Material handling machinery:mining machinery, textile machinery,
lifting equipment, Agricultural machinery: tractors, harvesting
machinery, etc.
2. Heavy-duty mining machinery: metallurgical machinery, mining
machinery, lifting machinery, loading and unloading machinery,
industrial vehicles, cement equipment, etc.
3. Construction Machinery: forklifts, earth moving machinery,
compaction machinery, concrete machinery, etc.
4. The general petrochemical machinery: oil drilling machinery, oil
refining machinery, chemical machinery, gas compressors, paper
machinery, printing machinery, etc.
5. Machine tools: forging machinery, foundry machinery, woodworking
machinery, etc.
6. Car: truck, road, bus, car, modified car, motorcycle ,etc.
