| Symbol | Value | Description |
|---|---|---|
| reference_speed_rpm | 4 500 r/min | Reference speed |
| limiting_speed_rpm | 3 800 r/min | Limiting speed |

SKF
Combined needle roller / thrust ball bearing with a cover
Needle Roller Bearing
RFQ
Estimated delivery: 10 Jul 2026 (overseas stock, ~4 weeks)
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
Combined needle roller / thrust ball bearing with a cover
These bearings consist of a radial needle roller bearing combined with a thrust ball bearing. Together they can accommodate both radial loads and axial loads in one direction. In addition, they can operate at relatively high speeds. Their low cross-sectional height makes the bearings particularly suitable for applications where other types of locating bearing arrangements occupy too much space. The thrust part is capped with a cover that forms a gap-type seal to retain the grease in the bearings.
Check mounting envelope, inner ring requirement, shaft surface hardness, lubrication, load, and speed range.
| Symbol | Value | Description |
|---|---|---|
| reference_speed_rpm | 4 500 r/min | Reference speed |
| limiting_speed_rpm | 3 800 r/min | Limiting speed |
| Symbol | Value | Description |
|---|---|---|
| d | 45 mm | Bore diameter |
| D | 58 mm | Outside diameter |
| B | 32 mm | Width |
| Symbol | Value | Description |
|---|---|---|
| da | min. 60.5 mm | da |
| ra | max. 0.6 mm | ra |
| rb | max. 0.3 mm | rb |
| di | 40 mm | di |
| F | 45 mm | F |
| Bi | 20 mm | Bi |
| Code | Description |
|---|---|
| 구름 베어링 유형 | Needle roller/thrust ball bearing |
| 베어링 부품 | Radial component without inner ring |
| 스러스트 부품 | With cage |
| 경방향 부품 | With cage |
| 구름 요소(스러스트 부품) | Ball |
| 축방향 하중 역량 | Single row |
| 공차 클래스 | Other |
| 소재, 베어링 | Bearing steel |
| 코팅 | None |
| 특수 기능 | Thrust component with stamped steel cover without lubrication hole |
| 윤활제(스러스트 부품) | Grease |
| 제품 순 중량 | 0.265 kg |
| eClass 코드 | 23-05-09-03 |
| UNSPSC 코드 | 31171512 |
The same part number can be written with or without separators, or in progressive prefix form. We index these common variants so your search reaches this page:
NKX45ZNKX45 ZNKX45SKFNKX45ZSKF NKX45 ZSKFNKX45 ZSKF NKX45ZSKFNKX45RFQ
Estimated delivery: 10 Jul 2026 (overseas stock, ~4 weeks)

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