SKF
Super-precision double row cylindrical roller bearing with tapered bore and lubrication feature
Cylindrical Roller Bearing
RFQ
Estimated delivery: 10 Jul 2026 (overseas stock, ~4 weeks)
EX-WORKS (Incoterms 2020) Seoul, Korea — Buyer arranges freight, duties, and insurance.
Super-precision double row cylindrical roller bearing with tapered bore and lubrication feature
Super-precision double row cylindrical roller bearings in the NN 30 series provide a unique balance between load carrying capacity, rigidity and speed. Having three flanges on the inner ring and no flanges on the outer ring, the bearings can accommodate axial displacement in both directions. The separable design simplifies mounting and dismounting, particularly when load conditions require both rings to have an interference fit. The tapered bore enables accurate adjustment of clearance or preload during mounting.
Choose the N, NU, NJ, or NUP design by load direction, axial locating requirement, cage material, internal clearance, and lubrication condition.
| Symbol | Value | Description |
|---|---|---|
| C | 292 kN | Basic dynamic load rating |
| C0 | 500 kN | Basic static load rating |
| grease_speed_rpm | 4 300 r/min | Attainable grease lubrication speed |
| oil_air_speed_rpm | 4 800 r/min | Attainable oil-air lubrication speed |
| Symbol | Value | Description |
|---|---|---|
| d | 130 mm | Bore diameter |
| D | 200 mm | Outside diameter |
| B | 52 mm | Width |
| Symbol | Value | Description |
|---|---|---|
| da | min. 140 mm | da |
| Da | max. 190 mm | Da |
| ra | max. 2 mm | ra |
| dn | 179.4 mm | dn |
| Code | Description |
|---|---|
| 베어링 부품 | Complete bearing |
| 열 개수 | 2 |
| 보어 유형 | Taper 1:12 |
| 케이지 | Non-metallic |
| 설계 | NN |
| 플랜지 개수, 외부 링 | 0 |
| 플랜지 개수, 내부 링 | 3 |
| 루스 플랜지 | None |
| 경방향 내부틈새 | C1 |
| 공차 클래스 | Class SP (SP) |
| 소재, 베어링 | Bearing steel |
| 코팅 | None |
| 씰링 | None |
| 윤활유 | None |
| 재윤활 기능 | Annular groove and lubrication holes |
| 제품 순 중량 | 5.37 kg |
| eClass 코드 | 23-05-09-01 |
| UNSPSC 코드 | 31171505 |
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:
NN3026KTN9SPW33NN3026 KTN9 SPW33NN3026KTN9 SPW33NN3026 KTN9SPW33NN3026NN3026KTN9SKFNN3026KTN9SPW33SKF NN3026 KTN9 SPW33SKFNN3026 KTN9 SPW33SKFNN3026KTN9 SPW33SKF NN3026KTN9SPW33SKF NN3026 KTN9SPW33RFQ
Estimated delivery: 10 Jul 2026 (overseas stock, ~4 weeks)
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