high quality drawn cup needle roller bearing HK 3020 size 30x37x20mm BK 3020 for excavator
high quality drawn cup needle roller bearing HK 3020 size 30x37x20mm BK 3020 for excavator
Needle roller bearings are bearings with cylindrical rollers that are small in diameter relative to their length. The modified roller/raceway profile prevents stress peaks to extend bearing service life.
BHR supplies needle roller bearings in many different designs, series and in a wide range of sizes, which make them appropriate for a wide variety of operating conditions and applications.
1. Needle roller and cage assembly
2. Drawn cup needle roller bearings
3. Needle roller bearings with machine rings
4. Alignment needle roller bearings
5. Universal joint bearings
6. Combined needle roller bearings
7. Needle roller thrust bearings
8. Cam follower, track rollers
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Specifications: needle roller bearing |
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Fw |
30mm |
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D |
37mm |
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C |
20mm |
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Bearing type |
machined bearing without inner ring |
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Bearing number of row |
single row needle roller bearing |
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Bearing cage type |
steel cage bearing |
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Bearing closure type |
open bearing, sealed bearing 2RS |
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Bearing material |
steel bearings, stainless steel bearing |
Needle roller bearing size
| Shaft | Bearing | Mass | Dimensions (mm) | Basic Load Ratings | Limiting | ||||
| Diameter | P.No. | Fw | D | C | r | Cr | Cor | Speed | |
| mm | g | min. | kN | kN | rpm | ||||
| 5 | NK 5/10TN | 3.1 | 5 | 10 | 10 | 0.15 | 2.5 | 2 | 37000 |
| NK 5/12TN | 3.7 | 5 | 10 | 12 | 0.15 | 3.05 | 2.99 | 37000 | |
| 6 | NK 6/10TN | 4.7 | 6 | 12 | 10 | 0.15 | 2.33 | 2.2 | 33000 |
| 6 | NK 6/12TN | 5.7 | 6 | 12 | 12 | 0.15 | 3.3 | 3.45 | 33000 |
| 7 | NK 7/10TN | 6.9 | 7 | 14 | 10 | 0.3 | 3.33 | 3.15 | 31000 |
| NK 7/12TN | 8.2 | 7 | 14 | 12 | 0.3 | 4.19 | 4.24 | 31000 | |
| 8 | NK 8/12TN | 8.7 | 8 | 15 | 12 | 0.3 | 4.1 | 4.3 | 29000 |
| NK 8/16TN | 12 | 8 | 15 | 16 | 0.3 | 4.9 | 5.4 | 29000 | |
| 9 | NK 9/12TN | 10.3 | 9 | 16 | 12 | 0.3 | 4.75 | 5.3 | 28000 |
| 10 | NK 10/12 | 10 | 10 | 17 | 12 | 0.3 | 5.01 | 5.82 | 27000 |
| NK 10/16 | 13 | 10 | 17 | 16 | 0.3 | 6.51 | 8.12 | 27000 | |
| 12 | NK 12/12 | 12 | 12 | 19 | 12 | 0.3 | 6.4 | 7.1 | 25000 |
| NK 12/16 | 16 | 12 | 19 | 16 | 0.3 | 9.1 | 11 | 25000 | |
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