| Symbol | Value | Description |
|---|---|---|
| reference_speed_rpm | 18 000 r/min | Reference speed |
| limiting_speed_rpm | 20 000 r/min | Limiting speed |
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SKF
SKF NKIB5903 Needle Roller Bearing 17 × 30 × 20 mm
Combined needle roller / angular contact ball bearing for axial loads in both directions
Needle Roller Bearing
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EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
- Category
- Needle Roller Bearing
- Dimensions
- 17x30x20mm
Overview
Combined needle roller / angular contact ball bearing for axial loads in both directions
These bearings consist of a radial needle roller bearing combined with an angular contact ball bearing. Together they can accommodate both heavy radial loads and light axial loads in both directions. In addition, they can operate at 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.
Key features
- Accommodate both radial and axial loads
- High load carrying capacity
- High-speed capability
- Low cross section
- Separable design
Typical applications
- Automotive transmissions
- Industrial gearboxes
- Compressors and pumps
- Links, pivots, and rocker arms
Selection guidance
Check mounting envelope, inner ring requirement, shaft surface hardness, lubrication, load, and speed range.
| Symbol | Value | Description |
|---|---|---|
| d | 17 mm | Bore diameter |
| D | 30 mm | Outside diameter |
| B | 20 mm | Width |
| C | 18 mm | Outer ring width |
| Symbol | Value | Description |
|---|---|---|
| da | min. 19 mm | da |
| Da | max. 28 mm | Da |
| ra | max. 0.3 mm | ra |
- Accommodates both radial and axial loads
- High load capacity
- High-speed capability
- Low cross-section
- Separable design
| Code | Description |
|---|---|
| 구름 베어링 유형 | Complete bearing |
| 베어링 부품 | Complete bearing |
| 스러스트 부품 | With cage |
| 경방향 부품 | With cage |
| 구름 요소(스러스트 부품) | Ball |
| 축방향 하중 역량 | Both directions |
| 경방향 내부틈새 | CN |
| 공차 클래스 | Not applicable |
| 소재, 베어링 | Bearing steel |
| 코팅 | None |
| 윤활제(스러스트 부품) | None |
| 제품 순 중량 | 0.0558 kg |
| eClass 코드 | 23-05-09-03 |
| UNSPSC 코드 | 31171512 |
Also searched as
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:
SKFNKIB5903SKF NKIB5903
