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Wamei Industrial Manufacture Co.,Limited.2020-07-10 09:46:19
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Product Description
 |  |  | |
| Name | NA6903R | RNA6903R | RNA6903 |
| Brand | NTN | NTN | CX |
| rs min | 0.3 mm 0.0118 in | 0.3 mm 0.0118 in | |
| s max | 1 mm 0.0394 in | ||
| Dw | 2.5 mm 0.0984 in | 2.5 mm 0.0984 in | |
| Lw | 17.8 mm 0.7008 in | 17.8 mm 0.7008 in | |
| Lubrication hole on outer ring | Oui/Yes | Oui/Yes | |
| k | 2 mm 0.0787 in | 2.5 mm 0.0984 in | |
| Lubrication hole on inner ring | Non/No | ||
| Radial clearance class | CN | CN | |
| Precision class | P0 | P0 | |
| Mass | 0.07 kg | 0.04 kg | |
| Cr | 18.2 kN | 18.2 kN | |
| C0r | 27.2 kN | 27.2 kN | |
| Nlim (grease) | 12,000 rpm | 12,000 rpm | |
| Nlim (oil) | 18,000 rpm | 18,000 rpm | |
| Min operating temperature, Tmin | -20 °C | -20 °C | |
| Max operating temperature, Tmax | 120 °C | 120 °C | |
| Characteristic cage frequency, FTF | 0.45 Hz | 0.45 Hz | |
| Characteristic rolling element frequency, BSF | 9.7 Hz | 9.7 Hz | |
| Characteristic outer ring frequency, BPF0 | 3.82 Hz | 7.63 Hz | |
| Characteristic inner ring frequency, BPFI | 4.68 Hz | 9.37 Hz | |
| da min | 19 mm 0.748 in | ||
| Da max | 28 mm 1.1024 in | 28 mm 1.1024 in | |
| ras max | 0.3 mm 0.0118 in | 0.3 mm 0.0118 in | |
| Size (mm) | 17x30x23(mm) | 22x30x23(mm) | 22x30x23(mm) |
| Bore Diameter (mm) | 17(mm) | 22(mm) | 22(mm) |
| Outer Diameter (mm) | 30(mm) | 30(mm) | 30(mm) |
| Width (mm) | 23(mm) | 23(mm) | 23(mm) |
| d | 17 mm 0.6693 in | ||
| F | 22 mm 0.8661 in | ||
| D | 30 mm 1.1811 in | 30 mm 1.1811 in | 30 mm 1.1811 in |
| B | 23 mm 0.9055 in | ||
| C | 23 mm 0.9055 in | 23 mm 0.9055 in | 23 mm 0.9055 in |
| r min. | 0,3 mm 0.0118 in | 0,3 mm 0.0118 in | |
| s | 1 mm 0.0394 in | ||
| da min. | 19 mm 0.748 in | ||
| Da max. | 28 mm 1.1024 in | 28 mm 1.1024 in | |
| ra max. | 0,3 mm 0.0118 in | 0,3 mm 0.0118 in | |
| Weight | 0,069 Kg | 0,042 Kg | 0,042 Kg |
| Basic dynamic load rating (C) | 18,2 kN | 18,2 kN | 18,7 kN |
| Basic static load rating (C0) | 27,2 kN | 27,2 kN | 30,5 kN |
| (Grease) Lubrication Speed | 12 000 r/min | 12000 r/min | 12000 r/min |
| Category | Bearings | Roller Bearings | |
| BDI Inventory | 0.0 | 0.0 | |
| Manufacturer Name | NTN | NTN | |
| Minimum Buy Quantity | N/A | N/A | |
| Weight / Kilogram | 0.073 | 0.041 | |
| Product Group - BDI | B04144 | B04144 |
Wamei Industrial Manufacture Co.,Limited is your best, safest & quickest partner to buy Hydraulic components. You just send us the part number or you tell us the brand and sepcification you are looking for, we'll make the quotation for you asap.
Contact Us
- Wamei Industrial Manufacture Co.,Limited.
- AddressNo. 10, Industrial South Road,Jinan,Shandong,China
- Phone(Working Time)+86-15065923472
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