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Viiplus needle roller bearings are bearings with cylindrical rollers that are small in diameter relative to their length. The modified roller/raceway profile prevents stress peaks to extend bearing service life.
Viiplus supplies needle roller bearings in many different designs, series and in a wide range of sizes, which makes them appropriate for a wide variety of operating conditions and applications.
A needle roller bearing is a special type of roller bearing which uses long, thin cylindrical rollers resembling needles. Ordinary roller bearings’ rollers are only slightly longer than their diameter, but needle bearings typically have rollers that are at least four times longer than their diameter.Like all bearings, they are used to reduce the friction of a rotating surface.
Compared to ball bearings and ordinary roller bearings, needle bearings have a greater surface area in contact with the races, so they can support a greater load. They are also thinner, so they require less clearance between the axle and the surrounding structure.
Needle bearings are heavily used in automobile components such as rocker arm pivots, pumps, compressors, and transmissions. The drive shaft of a rear-wheel drive vehicle typically has at least eight needle bearings (four in each U joint) and often more if it is particularly long, or operates on steep slopes.
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The bearing capacity of needle roller is large, and it is suitable for supporting structure with limited mounting size.
- Lowest cross section among rolling bearings
In applications where less space is available, needle roller and cage assemblies offer a very compact solution.
- High load carrying capacity
Owing to their large number of rollers, needle roller and cage assemblies have a high load carrying capacity.
- High stiffness
Because of their large number of small-diameter rollers, needle roller and cage assemblies have high stiffness.
Needle roller bearings dimensions
Needle roller bearings VIIPLUS CHINA Needle roller bearings are bearings with cylindrical rollers that are small in diameter relative to their length. The modified roller/raceway profile prevents stress peaks to extend bearing service life. VIIPLUS CHINA supplies needle roller bearings in many different designs, series and in a wide range of sizes, which make them appropriate for a wide variety of operating conditions and application.
Classification and Characteristics of Needle Bearings
Needle roller bearings have relatively small diameter cylindrical rolling elements whose length is much largerthan their diameter.Compared with other types of rolling bearings, needleroller bearings have a small cross-sectional height and significant load-bearing capacity and rigidity relative to their volume. Also, because the inertial forces acting on them is limited, they are an ideal choice for applications with oscillating motion. Needle roller bearings also work well in compact and lightweight machine designs and they serve as a ready replacement for sliding bearings.
The company as a modern needle bearing supplier company.Widely used in automotive, electronics, machinery And other fields.More than 80% are exported to Europe, America,India and other countries and regions.
With the characteristics of narrow section, suitable for limited radial space, can bear high radial load.Extensive design can withstand radial and axial load load bearing, providing easy, compact and economical bearing layout.
Needle roller bearing application:
Widely used in automobile, motorcycle, moped, power tools, spinning machine, agricultural machinery, industrial sewing machine, engineering machinery and other fields.
Small cross section, but high load capacity, so very suitable for radial space limited bearing configuration.Needle roller bearing has lower section height and higher bearing capacity.General purpose needle retaining bearing is a kind of bearing with excellent performance at high speed. The needle roller is correctly guided by a retainer of special shape with high rigidity and precision. The dimensional error is very low.In addition, because of their high lubricant capacity, light weight and high rigidity, they can be used in severe conditions: such as high speed, impact load, etc., so the range of use is very wide.
- BRAND VIIPLUS
- DYNAMIC LOAD RATING (N) 36800
- MAX SPEED / OIL (RPM) 12000
- STATIC LOAD (N) 67200
- WIDTH (mm) CUSTOMIZED
- APPROPRIATE INNER RING LRT 283230
- OD MM (INCH) 42
- HOUSING SHOULDER DIA MAX (mm) 40
- WIDTH (C) TOLERANCE (mm) +0 / -0.120
- OIL HOLE & GROOVE Yes
- SERIES TAF
- TOLERANCE ISO Class 0
- MANUFACTURERS PART NUMBER TAF324230
- O.D. TOLERANCE (mm) +0 / -0.011
- MAX SPEED / GREASE (RPM) 7200
- BORE TOLERANCE (mm) +0.041 / +0.025
- OUTER RING CORNER RADIUS MIN. (mm) 0.3
- BORE (mm) 32