Torrington 25-MM-ID X 42-MM NEEDLE BEARINGS TOR NA-4905
Heavy duty Needle Roller Bearings consists of a machined and ground channel-shaped outer ring with a complement of needle rollers and a cage. The high-strength cage retains and guides the rollers. An optional lubrication groove and hole in the outer ring facilitates re-lubrication. These bearings can be used with or without machined and ground inner ring, depending on the suitability of the shaft as a raceway surface.
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BrandKoyo
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UPC605790213373
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Manufacturer Part NumberNA4905
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CountryUSA
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Load Capacity24.3 kN Dynamic/31.7 kN Static
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Cage MaterialSteel
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Temperature Rating-30 to 110 deg C
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Maximum Speed9700 rpm Grease/15000 rpm Oil
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Closure TypeOpen
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TypeCaged Round Bore
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Width17 mm
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SeriesNA49 Metric Series
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Number of Rows1
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Bearing MaterialHigh Carbon Chrome Steel
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Outside Diameter42 mm
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Bore Diameter25 mm
- Thick outer ring provides maximum load capacity and shock resistance with a relatively small radial cross section
- Optimum speed and lubrication-retention capability
- Best used for high radial load applications
- Made from premium high carbon chrome japanese steel
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UNSPSC31171512
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Standards/ApprovalsABEC1|DIN 617
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Catalog
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Heavy duty Needle Roller Bearings consists of a machined and ground channel-shaped outer ring with a complement of needle rollers and a cage. The high-strength cage retains and guides the rollers. An optional lubrication groove and hole in the outer ring facilitates re-lubrication. These bearings can be used with or without machined and ground inner ring, depending on the suitability of the shaft as a raceway surface.
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