what's spherical rollers and barrel rollers? where's loose spherical roll...re? how to buy precision spherical rollers or spherical roller bearings?

YDTech® what's spherical rollers and barrel rollers? where's loose spherical rollers and convex rollers manufacture? how to buy precision spherical rollers or spherical roller bearings?

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manufacture of precision spherical rollers or spherical roller bearings! supplier of loose spherical rollers and convex rollers in china.

the spherical rollers that are thicker in the

middle and thinner at the ends,spherical

rollers are difficult to produce and thus

expensive.

we are manufactured precision rollers psrts. including cylindrical

rollers,spherical rollers, needle rollers, tapered rollers, cuspidal ends rolles, arc correction line

rollers, logarithm profile rollers etc. we will provide you quality needle roller with competitive

price and excellent service.

In many highly stressed applications the

cylindrical roller cannot be “too cylindrical” –

otherwise severe edge loading will occur. Perfectly cylindrical surfaces

in contact always have higher stresses at the edges. Furthermore, this

edge loading can worsen if the roller is slightly misaligned or if the

components bend or distort during operation.

by putting a tightly controlled “crown” on the roller at the micrometer level, the loading of the

bearing can actually be made more consistent over the length of the bearing. The following

figures show how different types of surface profiles induce different kinds of contact stresses

at low and high loading.

This type of bearing utilizes cylindrically

shaped rollers as the load carrying element.

This bearing type is designed to carry large radial loads. This bearing,

in its basic configuration, is not well suited to counter axial loads. The rollers may actually be

slightly barrel shaped in certain designs. Barrel shaped rollers and their associated outer race

allow for some self alignment of the bearing. Needle bearings are a special adaptation of the

cylindrical roller bearing.

sizes of spherical rollers

spherical rollers, spherical roller bearings,convex rollers,

● home

● products

● contact

● equipments

● cylindrical roller

● capillary tubes

● needle rollers

● sizes or stock

● NRB flat ended

● NRA round end

● crowned ends

● chrome steel

● stainless steel

● short rollers

● tapered rollers

● dowel pins

● grooved pins

● spherical roller

● special shape

● steel balls

http://www.bearing-needle.com/12convex-spherical-rollers.htm（第 1／2 页）[2015-10-17 22:16:15]

what's spherical rollers and barrel rollers? where's loose spherical roll...re? how to buy precision spherical rollers or spherical roller bearings?

DwwxLw R DwwxLw R DwwxLw R

7*5.9 22.8 12.5*12 39 17.5*20.5 70.8

8.7 27.2 3.5*12.5 43.2 20*23.5 80

9*8.2 31.3 15.5 *16.2 48.2 22*27 88.3

10*8.2 35.3 17*17.4 52.6 23.5*30 95.5

10*8.2 37.2 18.5*18 56.9 25.2*32 102.3

10*8.2 39.6 19.5*19.5 61.1 27.5*35 111.1

10*9 44.1 20.5*20.8 65.5 29.5*38.5 119.8

12.5*10 48.5 21.5*22 69.7 32*41.5 128.5

13.5*11.5 52.4 23*22.8 74.2 33.5*42.7 138.2

17.5*11.5 55 24.5*25 78.6 34.5*44.1 143

14.5*11.5 57.5 25.5*25 82.9 36.5*47.7 150.3

14*12.2 61.4 27*26 87.3 38.5*50.6 181

14.5*13 66.2 29*28.5 93.6 16*20 74

16.5*14.5 70.8 32*30.5 103.8 12.5*21.5 80.9

17.5*16 74.7 35*33.2 112.5 19.5*23.3 89.7

17.5*16 74.7 35*33.2 112.5 19.5*23.3 89.7

loose spherical rollers, spherical roller bearings,convex rollers,precision barrel rollers. needle rollers tapered rollers cylindrical rollers dowel pins grooved pins crowned rollers needle roller

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