NKI42/30 Needle Roller Bearing
NKI42/30
Bore Diameter:42 mm
Outside Diameter:57 mm
Width:30 mm
Weight:- kg
The NKI42/30 bearing is a Needle Roller Bearing with an inner diameter of 42 mm , an outer diameter of 57 mm, a width of 30 mm. It typically uses P2 grade precision tolerances and Open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
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Detailed description
Product Description
Cr 15800 N Basic dynamic load rating, radial
C0r 19900 N Basic static load rating, radial
Cur 3650 N Fatigue limit load, radial
NG 20000 1/min Limiting speed
NB 12000 1/min Reference speed.
Packaging & DeliveryPackaging Detail: color single box
Delivery Detail: 20-30 days
Specifications
1. Nice quality.
2.OEM service
3.Competitive price
Machined needle roller bearing-auto parts:
1.cage and needle roller assembly featuring small section height
2.big load capacity and rigidity
3.compact structure and small size
4.high rotating accuracy with the structure of disposed inner ring
the inner ring has no shoulder in this bearing, for this purpose, the inner ring, outer ring, complete set of needles and cage can be mounted respectively, this bearing does not limit the axial shift of shaft and outer housing, since the cage separates the needles so as to reduce friction, it can be used for the parts with high rotational speed.
Needle bearings are roller bearings with rollers that have high length-to diameter ratios. 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.
Compared with other roller bearings, needle bearings have much smaller rollers for a given bore size. Needle bearings have the highest load capacity for a given radial space of all rolling-element bearings, but their use is limited to bore diameters less than 10 in.
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