WZZG NAV4004 (2 pcs/lot) Full ball needle roller bearings RNAV4004 IR20X28.7X22 high quality NAV4004
Full complement needle roller bearing with inner ring NAV4004
Brand: WZZG
Model: NAV4004
Specification: 20 * 42 * 22 mm
Material: Bearing steel
Packaging: 2 pieces/set
Needle Roller Bearings (needle bearing) is a cylindrical roller with roller bearings, relative to its diameter, roller both thin and long. This is called needle roller. Despite having a smaller cross-section, has a higher load bearing capacity, equipped with a thin and long needle bearing roller (roller diameter D≤5mm,
Needle bearings are used in farm and construction equipment, automotive transmissions, small gasoline engines, gear pumps, small appliance and tool motors, alternators, and aircraft controls.
Needle bearings are usually lubricated with grease, but oil or oil-mist lubrication is preferred for heavy-duty or high-speed applications. Many light-duty needle bearings never require relubrication, but high loads or speeds demand it.
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Bearings can be bought online and can be ordered in stock (large wholesale is supported). If you
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Estimated delivery time
Orders are dispatched within 48 hours of payment. (Customized products will be sent according
to the agreed time)
