NAV4920 Needle Roller Bearing

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NAV4920

Bore Diameter:100 mm

Outside Diameter:140 mm

Width:40 mm

The NAV4920 bearing is a Roller Bearings with an inner diameter of 100 mm , an outer diameter of 140 mm, a width of 40 mm. open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

100 mm

Outside Diameter:

140 mm

Thickness:

40 mm

Specifications:

Structure:

single row

Brand:

caf

Bearing Material:

Chrome

Seals Type:

open

Transaction Information:

Detailed description

Needle roller bearing

1. They accommodate both radial and axial loads in both directions and are suitable for high rotational speeds.

2. Our needle roller bearing has many types. They can meet all needs.

4. Needle roller bearings: Low-notice, high speed, suitable for the motor bearing and automotive bearings.

A needle roller bearing is a bearing which uses small cylindrical rollers. They are used to reduce friction of a rotating surface.
Needle bearings have a large surface area that is in contact with the bearing outer surfaces compared to ball bearings. Additionally there is less added clearance (difference between the diameter of the shaft and the diameter of the bearing) so they are much more compact. The typical structure consists of a needle cage which orients and contains the needle rollers, the needle rollers themselves, and an outer race(sometimes housing itself).

Radial needle bearings are cylindrical and use rollers parallel to the axis of the shaft. Thrust needle bearings are flat and use a radial pattern of needles.

Full complement bearings have solid inner and outer rings and rib-guided cylindrical rollers. Since these bearings have the largest possible number of rolling elements, they have extremely high radial load carrying capacity and are suitable for particularly compact designs.

Needle bearings are heavily used in engine components such as rocker arm pivots, pumps, compressors, and transmissions. The drive shaft of a rear-wheel drive vehicle typically has at least 8 needle bearings (4 in each U joint) and often more if it is particularly long, or operates on steep slopes.

Additional clarification of Needle Roller: According to "Marks' Standard Handbook for Mechanical Engineers", a Needle Bearing is a roller bearing with rollers whose length are at least four times their diameter.

Model	NAV4919
Cage material	Nylon , steel , brass
Service	OEM service, Customer design service, buyer label service
Payment terms	A:100% L/C at sight B: 30% T/T in advance .70% against copy of B/L
Delivery time	within a week; according to your requirement
Package	Industrial package or according to your requirement
Application	Automobile, tractor, machine tool, electric machine, water pump, agricultural machinery and textile machinery

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NAV4920 Needle Roller Bearing

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