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NN3068-AS-K-M-SP
Cylindrical roller bearing
Super precision cylindrical roller bearings NN30..-AS-K-M-SP, non-locating bearing, double row, with tapered bore, taper 1:12, separable, with cage
제품 정보
Main Dimensions & Performance Data
| d | 340 mm | Bore diameter |
| D | 520 mm | Outside diameter |
| B | 133 mm | Width |
| Cr | 1,640,000 N | Basic dynamic load rating, radial |
| C0r | 3,250,000 N | Basic static load rating, radial |
| Cur | 340,000 N | Fatigue load limit, radial |
| nG Grease | 1,470 1/min | Limiting speed for grease lubrication |
| nG Oil | 1,730 1/min | Limiting speed for oil lubrication |
| ≈m | 97.53 kg | 중량 |
Mounting dimensions
| da | 393 mm | Diameter shaft shoulder |
h12 | Diameter shaft shoulder tolerance | |
| Da | 483 mm | Diameter of housing shoulder |
H12 | Shoulder diameter outer ring clearance | |
| ra1 max | 4 mm | Maximum recess radius |
Dimensions
| r1 min | 5 mm | Minimum chamfer dimension |
| E | 473 mm | Raceway diameter outer ring |
| ns | 17.7 mm | Width of lubricating groove |
| ds | 9.5 mm | Diameter lubrication hole |
| s | 8.8 mm | Axial displacement |
Temperature range
| Tmin | -30 °C | Operating temperature min. |
| Tmax | 150 °C | Operating temperature max. |
다운로드:
현 제품 규격
| Cage | M | Brass Cage |
| Tolerance class | SP | Tolerance class SP |
| Bore type | K | Tapered, taper 1:12 |
| Change mark | A | Internal Variant A |
| Radial internal clearance | C1 (Group 1) | Internal clearance smaller than C2 |
| Number of rolling element rows | 2 | Double-row design |
특징
