Description
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| Its number | NN3022-D-K-TVP-SP-XL | |
| Category | Cylindrical roller bearing | |
| Overview | NN3022-D-K-TVP-SP-XLSuper precision cylindrical roller bearings , Non-locating bearing, double row, with tapered bore, taper 1:12, separable, with cage. D:Bearings With A Modified Internal Construction And The Suffix D Do Not Have A Lubrication Hole Or Lubrication Groove As Standard K:Tapered Bore, Taper 1:12 TVP:Moulded Polyamide Window-Type Cage, Rolling Element Riding. SP:Super Precision Specification, Tolerance Class XL:X-Life | |
| Features and Benefits | Cylindrical roller bearings for main spindles are used when the very highest precision is required under very high radial load. The bearings facilitate bearing arrangements with very high precision, high radial rigidity and very high load carrying capacity. In machine tool building, they provide radial support for the main spindle. | |
| The bearings are available in various designs which are matched to different requirements. For example, hybrid cylindrical roller bearings with half the number of rollers can achieve extremely high speeds. | ||
| These are single or double row cylindrical roller bearings with a largely tapered bore (taper 1:12) and a removable outer ring, which can thus be mounted separately from the normal bearing package. The inner ring is only removable in the case of series NNU49. | ||
| Applicatons | machine tools | |
| printing machinery | ||
| eduction gears | ||
| machinery and equipment | ||
| water conservancy machinery | ||
| Dimensions | ||
| d (mm) (Bore diameter) | 110 | |
| D (mm) (Outer diameter) | 170 | |
| B (mm) (Width) | 45 | |
| W(kg) (Weight) | 3.338 | |
| Technical Data | ||
| Basic dynamic load rating, radial | 260,000 N | |
| Basic static load rating, radial | 360,000 N | |
| Fatigue load limit, radial | 57,000 N | |
| Limiting speed for grease lubrication | 6,000 1/min | |
| Limiting speed for oil lubrication | 7,100 1/min | |
| diameter shaft shoulder | 127 mm | |
| Minimum chamfer dimension | 2 mm | |
| diameter shaft shoulder tolerance | h12 | |
| Raceway diameter outer ring | 155 mm | |
| Operating temperature min. | -30 °C | |
| Operating temperature max. | 120 °C | |
| Bore | K - 1:12 Tapered Bore (Standard for Most Types) | |
| Seal | No Seal | |
| Cage Type | P - Plastic Molded Cage | |
| External Modification | No External Modification | |
| Precision | SP - Precision Higher than P4S | |
| RFQ | ||
| Sun Rises Group Limited have rich experience in bearings operation since year 1986. Our own brand is SDVV and we also agent for many world-famous bearings. | ||
| 2. How can we guarantee quality? | ||
| Always a pre-production sample before mass production; | ||
| Always final Inspection before shipment; | ||
| We have sufficient inventory to achieve fast delivery. If you want to know more, please feel free to contact us so that we can get back to you quickly. | ||
For details please contact, | ||
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