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NN3056-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 | 280 mm | Bore diameter |
D | 420 mm | Outside diameter |
B | 106 mm | Width |
Cr | 1,090,000 N | Basic dynamic load rating, radial |
C0r | 2,090,000 N | Basic static load rating, radial |
Cur | 228,000 N | Fatigue load limit, radial |
nG Grease | 1,850 1/min | Limiting speed for grease lubrication |
nG Oil | 2,170 1/min | Limiting speed for oil lubrication |
≈m | 60.4 kg | 중량 |
Mounting dimensions
da | 320 mm | Diameter shaft shoulder |
h12 | Diameter shaft shoulder tolerance | |
Da | 392 mm | Diameter of housing shoulder |
H12 | Shoulder diameter outer ring clearance | |
ra1 max | 3 mm | Maximum recess radius |
Dimensions
r1 min | 4 mm | Minimum chamfer dimension |
E | 384 mm | Raceway diameter outer ring |
ns | 15 mm | Width of lubricating groove |
ds | 8 mm | Diameter lubrication hole |
s | 6.9 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