Needle axial cylindrical roller bearing NKXR25 without inner ring, for oil lubrication
Main dimensions for NKXR25
| Designation | Dimension | Remark |
|---|---|---|
| Fw | 25.00 mm | enveloping circle |
| D | 37.00 mm | outer diameter |
| D1 | 42.10 mm | outer diameter Snap ring |
| C | 30.00 mm | width |
| C1 | 11.00 mm | Array axial part |
| C2 | 9.50 mm | Distance lubrication hole |
| rmin. | 0.60 mm | min. edge distance |
| ra | 0.60 mm | min. edge distance |
| da | 37.70 mm | |
| dw | 25.00 mm | inner diameter wave washer |
Performance data for NKXR25
| Designation | Dimension | Remark |
|---|---|---|
| Ca | 33,500 N | dynamic load rating, axial |
| C0a | 76,000 N | static load rating, axial |
| Cua | 7,100 N | fatigue limit load, axial |
| Cr | 21,300 N | dynamic load rating, radial |
| C0r | 30,500 N | static load rating, radial |
| Cur | 5,300 N | fatigue limit load |
| nG | 8,500 min-1 | Limit speed with oil lubrication |
| nB | 3,400 min-1 | reference speed |
| 0.120 kg | Weight |
Other sizes of NKXR25 series NKXR (9)
| Designation | Dimension | Performance data | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fw | D | D1 | D2 | C | C1 | C2 | dw | da | ra | rmin | Cr | C0r | Ca | C0a | Cur | Cua | nG | nB | |
| mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | N | N | N | N | N | N | min-1 | min-1 | |
| NKXR15 | 15.00 | 24.00 | 28.10 | - | 23.00 | 9.00 | 6.50 | 15.00 | 23.70 | 0.30 | 0.30 | 12,100 | 12,700 | 14,400 | 28,500 | 2,320 | 4,000 | 13,000 | 6,500 |
| NKXR17 | 17.00 | 26.00 | 30.10 | - | 25.00 | 9.00 | 8.00 | 17.00 | 25.70 | 0.30 | 0.30 | 13,500 | 15,000 | 16,000 | 33,500 | 2,750 | 4,650 | 12,000 | 5,500 |
| NKXR20 | 20.00 | 30.00 | 35.10 | - | 30.00 | 10.00 | 10.50 | 20.00 | 30.70 | 0.30 | 0.30 | 18,600 | 23,800 | 25,000 | 53,000 | 4,150 | 7,300 | 10,000 | 4,200 |
| NKXR25 | 25.00 | 37.00 | 42.10 | - | 30.00 | 11.00 | 9.50 | 25.00 | 37.70 | 0.60 | 0.60 | 21,300 | 30,500 | 33,500 | 76,000 | 5,300 | 7,100 | 8,500 | 3,400 |
| NKXR30 | 30.00 | 42.00 | 47.10 | - | 30.00 | 11.00 | 9.50 | 30.00 | 42.70 | 0.60 | 0.60 | 25,500 | 36,000 | 35,500 | 86,000 | 6,300 | 8,000 | 7,500 | 2,900 |
| NKXR35 | 35.00 | 47.00 | 52.10 | - | 30.00 | 12.00 | 9.00 | 35.00 | 47.70 | 0.60 | 0.60 | 27,500 | 41,500 | 39,000 | 101,000 | 7,300 | 9,500 | 6,500 | 2,500 |
| NKXR40 | 40.00 | 52.00 | 60.10 | - | 32.00 | 13.00 | 10.00 | 40.00 | 55.70 | 0.60 | 0.60 | 29,500 | 47,000 | 56,000 | 148,000 | 8,300 | 14,500 | 6,000 | 2,000 |
| NKXR45 | 45.00 | 58.00 | 65.20 | - | 32.00 | 14.00 | 9.00 | 45.00 | 60.60 | 0.60 | 0.60 | 31,000 | 53,000 | 59,000 | 163,000 | 9,300 | 16,000 | 5,000 | 1,900 |
| NKXR50 | 50.00 | 62.00 | 70.20 | - | 35.00 | 14.00 | 10.00 | 50.00 | 65.50 | 0.60 | 0.60 | 43,000 | 74,000 | 62,000 | 177,000 | 12,700 | 17,400 | 4,800 | 1,700 |
Variants of NKXR25 (2)
| Designation | Dimension | Performance data | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fw | D | D1 | D2 | C | C1 | C2 | dw | da | ra | rmin | Cr | C0r | Ca | C0a | Cur | Cua | nG | nB | |
| mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | mm | N | N | N | N | N | N | min-1 | min-1 | |
| NKXR25 | 25.00 | 37.00 | 42.10 | - | 30.00 | 11.00 | 9.50 | 25.00 | 37.70 | 0.60 | 0.60 | 21,300 | 30,500 | 33,500 | 76,000 | 5,300 | 7,100 | 8,500 | 3,400 |
| NKXR25-Z | 25.00 | 37.00 | - | 43.20 | 30.00 | 11.00 | 9.50 | 25.00 | 37.70 | 0.60 | 0.60 | 21,300 | 30,500 | 33,500 | 76,000 | 5,300 | 7,100 | 5,100 | 3,400 |
Accessories to NKXR25 (1)
| Type | Designation | Brand | Full designation |
|---|---|---|---|
| IR20x25x20 | Inner ring | HFH | Inner ring IR20x25x20 |
Product features for NKXR25 (4)
| Properties | Suffix | Description |
|---|---|---|
| Cage design | - | Sheet steel cage (standard) |
| Lubricatable | - | without cap, for oil lubrication |
| Lubricatable | - | Lubricating groove and lubricating nut on the outer ring (standard) |
| axial direction of action | - | unidirectional |
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