Needle bearing without inner ring NK28/20-D
Main dimensions for NK28/20-D
| Designation | Dimension | Remark |
|---|---|---|
| Fw | 28.00 mm | enveloping circle |
| D | 37.00 mm | outer diameter |
| C | 20.00 mm | width |
| rmin. | 0.30 mm | min. edge distance |
Performance data for NK28/20-D
| Designation | Dimension | Remark |
|---|---|---|
| Cr | 29,000 N | dynamic load rating, radial |
| C0r | 41,500 N | static load rating, radial |
| Cur | 7,400 N | fatigue limit load |
| nG | 15,800 min-1 | limit speed |
| nB | 8,800 min-1 | reference speed |
| 0.058 kg | Weight |
Other sizes of NK28/20-D series NK (89)
| Designation | Dimension | Performance data | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Fw | D | C | rmin | Cr | C0r | Cur | nG | nB | |
| mm | mm | mm | mm | N | N | N | min-1 | min-1 | |
| NK5/12 | 5.00 | 10.00 | 12.00 | 0.15 | 3,400 | 2,650 | 435 | 39,000 | 54,000 |
| NK5/10 | 5.00 | 10.00 | 10.00 | 0.15 | 2,650 | 1,920 | 295 | 39,000 | 55,000 |
| NK6/10 | 6.00 | 12.00 | 10.00 | 0.15 | 2,950 | 2,280 | 355 | 36,500 | 48,500 |
| NK6/12 | 6.00 | 12.00 | 12.00 | 0.15 | 3,800 | 3,150 | 520 | 36,500 | 47,500 |
| NK7/10 | 7.00 | 14.00 | 10.00 | 0.30 | 3,250 | 2,650 | 410 | 34,500 | 43,000 |
| NK7/12 | 7.00 | 14.00 | 12.00 | 0.30 | 4,150 | 3,600 | 600 | 34,500 | 42,000 |
| NK8/12 | 8.00 | 15.00 | 12.00 | 0.30 | 4,450 | 4,100 | 690 | 32,500 | 37,000 |
| NK8/16 | 8.00 | 15.00 | 16.00 | 0.30 | 5,800 | 5,800 | 970 | 32,500 | 36,500 |
| NK9/12 | 9.00 | 16.00 | 12.00 | 0.30 | 5,100 | 5,000 | 840 | 31,000 | 32,000 |
| NK9/16 | 9.00 | 16.00 | 16.00 | 0.30 | 6,600 | 7,100 | 1,190 | 31,000 | 32,000 |
| NK10/16 | 10.00 | 17.00 | 16.00 | 0.30 | 7,000 | 7,800 | 1,310 | 29,500 | 28,500 |
| NK10/12 | 10.00 | 17.00 | 12.00 | 0.30 | 5,300 | 5,500 | 930 | 29,500 | 29,000 |
| NK12/16 | 12.00 | 19.00 | 16.00 | 0.30 | 10,100 | 11,000 | 1,920 | 26,500 | 21,600 |
| NK12/12 | 12.00 | 19.00 | 12.00 | 0.30 | 7,200 | 7,100 | 1,280 | 26,500 | 22,400 |
| NK14/20 | 14.00 | 22.00 | 20.00 | 0.30 | 14,500 | 15,600 | 2,700 | 24,600 | 18,300 |
| NK14/16 | 14.00 | 22.00 | 16.00 | 0.30 | 11,400 | 11,500 | 2,100 | 24,600 | 18,600 |
| NK14/16-D | 14.00 | 22.00 | 16.00 | 0.30 | 15,400 | 17,100 | 2,850 | 24,600 | 16,800 |
| NK15/20 | 15.00 | 23.00 | 20.00 | 0.30 | 15,400 | 17,200 | 3,000 | 23,900 | 17,000 |
| NK15/16 | 15.00 | 23.00 | 16.00 | 0.30 | 12,100 | 12,700 | 2,320 | 23,900 | 17,300 |
| NK16/16 | 16.00 | 24.00 | 16.00 | 0.30 | 12,800 | 13,900 | 2,550 | 23,200 | 16,200 |
| NK16/20 | 16.00 | 24.00 | 20.00 | 0.30 | 16,300 | 18,800 | 3,250 | 23,200 | 15,900 |
| NK17/16 | 17.00 | 25.00 | 16.00 | 0.30 | 13,500 | 15,000 | 2,750 | 22,600 | 15,300 |
| NK17/20 | 17.00 | 25.00 | 20.00 | 0.30 | 17,100 | 20,400 | 3,550 | 22,600 | 15,000 |
| NK18/20 | 18.00 | 26.00 | 20.00 | 0.30 | 17,900 | 22,000 | 3,850 | 22,100 | 14,100 |
| NK18/16 | 18.00 | 26.00 | 16.00 | 0.30 | 14,100 | 16,200 | 3,000 | 22,100 | 14,400 |
| NK19/16 | 19.00 | 27.00 | 16.00 | 0.30 | 14,700 | 17,400 | 3,200 | 21,600 | 13,700 |
| NK19/20 | 19.00 | 27.00 | 20.00 | 0.30 | 18,700 | 23,600 | 4,150 | 21,600 | 13,400 |
| NK20/16 | 20.00 | 28.00 | 16.00 | 0.30 | 14,600 | 17,500 | 3,200 | 21,100 | 13,200 |
| NK20/20 | 20.00 | 28.00 | 20.00 | 0.30 | 18,600 | 23,800 | 4,150 | 21,100 | 12,900 |
| NK20/16-D | 20.00 | 28.00 | 16.00 | 0.30 | 18,500 | 23,900 | 4,050 | 21,100 | 12,100 |
| NK21/16 | 21.00 | 29.00 | 16.00 | 0.30 | 15,200 | 18,700 | 3,450 | 20,600 | 12,600 |
| NK21/20 | 21.00 | 29.00 | 20.00 | 0.30 | 19,300 | 25,500 | 4,450 | 20,600 | 12,300 |
| NK22/16 | 22.00 | 30.00 | 16.00 | 0.30 | 15,800 | 19,900 | 3,650 | 20,000 | 12,000 |
| NK22/20 | 22.00 | 30.00 | 20.00 | 0.30 | 20,000 | 27,000 | 4,700 | 20,000 | 11,700 |
| NK24/20 | 24.00 | 32.00 | 20.00 | 0.30 | 21,400 | 30,500 | 5,300 | 18,500 | 10,700 |
| NK24/16 | 24.00 | 32.00 | 16.00 | 0.30 | 16,900 | 22,300 | 4,100 | 18,500 | 11,000 |
| NK25/20 | 25.00 | 33.00 | 20.00 | 0.30 | 21,300 | 30,500 | 5,300 | 17,800 | 10,400 |
| NK25/16 | 25.00 | 33.00 | 16.00 | 0.30 | 16,800 | 22,400 | 4,150 | 17,800 | 10,700 |
| NK26/20 | 26.00 | 34.00 | 20.00 | 0.30 | 22,000 | 32,000 | 5,600 | 17,200 | 10,100 |
| NK26/16 | 26.00 | 34.00 | 16.00 | 0.30 | 17,300 | 23,600 | 4,350 | 17,200 | 10,300 |
| NK28/30 | 28.00 | 37.00 | 30.00 | 0.30 | 37,000 | 57,000 | 10,500 | 15,800 | 9,000 |
| NK28/20 | 28.00 | 37.00 | 20.00 | 0.30 | 24,800 | 34,000 | 5,900 | 15,800 | 9,300 |
| NK28/20-D | 28.00 | 37.00 | 20.00 | 0.30 | 29,000 | 41,500 | 7,400 | 15,800 | 8,800 |
| NK29/30 | 29.00 | 38.00 | 30.00 | 0.30 | 37,000 | 57,000 | 10,600 | 15,300 | 8,800 |
| NK30/30 | 30.00 | 40.00 | 30.00 | 0.30 | 42,000 | 69,000 | 12,700 | 14,800 | 8,200 |
| NK30/20 | 30.00 | 40.00 | 20.00 | 0.30 | 28,000 | 41,000 | 7,200 | 14,800 | 8,500 |
| NK32/30 | 32.00 | 42.00 | 30.00 | 0.30 | 39,000 | 63,000 | 11,700 | 14,000 | 8,200 |
| NK35/30 | 35.00 | 45.00 | 30.00 | 0.30 | 46,000 | 81,000 | 15,000 | 12,900 | 7,100 |
| NK37/20 | 37.00 | 47.00 | 20.00 | 0.30 | 28,000 | 43,500 | 7,600 | 12,300 | 7,400 |
| NK37/30 | 37.00 | 47.00 | 30.00 | 0.30 | 42,000 | 73,000 | 13,500 | 12,300 | 7,200 |
| NK37/20-D | 37.00 | 47.00 | 20.00 | 0.30 | 34,000 | 56,000 | 9,900 | 12,300 | 6,800 |
| NK38/20 | 38.00 | 48.00 | 20.00 | 0.30 | 29,000 | 45,000 | 7,900 | 12,000 | 7,200 |
| NK38/30 | 38.00 | 48.00 | 30.00 | 0.30 | 43,000 | 76,000 | 14,000 | 12,000 | 7,000 |
| NK40/30 | 40.00 | 50.00 | 30.00 | 0.30 | 44,000 | 79,000 | 14,600 | 11,400 | 6,700 |
| NK42/20 | 42.00 | 52.00 | 20.00 | 0.30 | 30,000 | 49,000 | 8,600 | 10,900 | 6,600 |
| NK42/30 | 42.00 | 52.00 | 30.00 | 0.30 | 44,500 | 82,000 | 15,200 | 10,900 | 6,400 |
| NK43/20 | 43.00 | 53.00 | 20.00 | 0.30 | 30,500 | 51,000 | 8,900 | 10,700 | 6,500 |
| NK43/30 | 43.00 | 53.00 | 30.00 | 0.30 | 45,500 | 85,000 | 15,800 | 10,700 | 6,300 |
| NK47/30 | 47.00 | 57.00 | 30.00 | 0.30 | 48,500 | 94,000 | 17,500 | 9,800 | 5,800 |
| NK47/20 | 47.00 | 57.00 | 20.00 | 0.30 | 32,500 | 56,000 | 9,900 | 9,800 | 6,000 |
| NK55/35 | 55.00 | 68.00 | 35.00 | 0.60 | 60,000 | 118,000 | 21,300 | 8,400 | 5,200 |
| NK55/25-D | 55.00 | 68.00 | 25.00 | 0.60 | 57,000 | 111,000 | 19,400 | 8,400 | 4,700 |
| NK55/25 | 55.00 | 68.00 | 25.00 | 0.60 | 45,500 | 82,000 | 14,000 | 8,400 | 5,200 |
| NK60/35 | 60.00 | 72.00 | 35.00 | 0.60 | 63,000 | 130,000 | 23,500 | 7,700 | 4,800 |
| NK60/25 | 60.00 | 72.00 | 25.00 | 0.60 | 53,000 | 103,000 | 17,500 | 7,700 | 4,600 |
| NK65/25 | 65.00 | 78.00 | 25.00 | 0.60 | 50,000 | 98,000 | 16,700 | 7,200 | 4,500 |
| NK65/35 | 65.00 | 78.00 | 35.00 | 0.60 | 66,000 | 142,000 | 25,500 | 7,200 | 4,450 |
| NK68/25 | 68.00 | 82.00 | 25.00 | 0.60 | 49,500 | 89,000 | 15,200 | 6,800 | 4,500 |
| NK68/35 | 68.00 | 82.00 | 35.00 | 0.60 | 70,000 | 139,000 | 25,500 | 6,800 | 4,350 |
| NK70/35 | 70.00 | 85.00 | 35.00 | 0.60 | 71,000 | 144,000 | 26,500 | 6,600 | 4,300 |
| NK70/25 | 70.00 | 85.00 | 25.00 | 0.60 | 50,000 | 92,000 | 15,700 | 6,600 | 4,450 |
| NK73/35 | 73.00 | 90.00 | 35.00 | 1.00 | 85,000 | 156,000 | 27,000 | 6,300 | 4,050 |
| NK73/25 | 73.00 | 90.00 | 25.00 | 1.00 | 60,000 | 100,000 | 17,500 | 6,300 | 4,150 |
| NK75/35 | 75.00 | 92.00 | 35.00 | 1.00 | 87,000 | 162,000 | 28,000 | 6,100 | 3,950 |
| NK75/25 | 75.00 | 92.00 | 25.00 | 1.00 | 61,000 | 104,000 | 18,200 | 6,100 | 4,050 |
| NK80/35 | 80.00 | 95.00 | 35.00 | 1.00 | 89,000 | 184,000 | 32,500 | 5,800 | 3,650 |
| NK80/25 | 80.00 | 95.00 | 25.00 | 1.00 | 63,000 | 119,000 | 19,700 | 5,800 | 3,750 |
| NK85/25 | 85.00 | 105.00 | 25.00 | 1.00 | 78,000 | 123,000 | 21,700 | 5,400 | 3,550 |
| NK85/35 | 85.00 | 105.00 | 35.00 | 1.00 | 111,000 | 193,000 | 34,500 | 5,400 | 3,450 |
| NK90/35 | 90.00 | 110.00 | 35.00 | 1.00 | 116,000 | 208,000 | 37,000 | 5,100 | 3,250 |
| NK90/25 | 90.00 | 110.00 | 25.00 | 1.00 | 81,000 | 132,000 | 23,300 | 5,100 | 3,400 |
| NK95/26 | 95.00 | 115.00 | 26.00 | 1.00 | 83,000 | 137,000 | 24,000 | 4,850 | 3,300 |
| NK95/36 | 95.00 | 115.00 | 36.00 | 1.00 | 121,000 | 223,000 | 39,500 | 4,850 | 3,150 |
| NK100/36 | 100.00 | 120.00 | 36.00 | 1.00 | 125,000 | 237,000 | 41,500 | 4,600 | 3,000 |
| NK100/26 | 100.00 | 120.00 | 26.00 | 1.00 | 86,000 | 146,000 | 25,000 | 4,600 | 3,150 |
| NK105/36 | 105.00 | 125.00 | 36.00 | 1.00 | 129,000 | 250,000 | 43,500 | 4,400 | 2,850 |
| NK105/26 | 105.00 | 125.00 | 26.00 | 1.00 | 89,000 | 155,000 | 26,500 | 4,400 | 3,050 |
| NK110/40 | 110.00 | 130.00 | 40.00 | 1.10 | 143,000 | 290,000 | 50,000 | 4,200 | 2,750 |
| NK110/30 | 110.00 | 130.00 | 30.00 | 1.10 | 111,000 | 210,000 | 35,500 | 4,200 | 2,800 |
Accessories to NK28/20-D (1)
| Type | Designation | Brand | Full designation |
|---|---|---|---|
| Sealing ring | G28x37x4 | HFH | Sealing ring G28x37x4 |
Alternate brands for NK28/20-D (1)
| Name | Brand | Webshop | Notice |
|---|---|---|---|
| NK28/20-D | HFH | Premium quality, house brand |
Product features for NK28/20-D (2)
| Properties | Suffix | Description |
|---|---|---|
| Cage design | D | Bearing with improved steel cage for downsizing option |
| Rolling element rows | - | Single row |
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