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Cylindrical Rollers

Customized Roller Produced large-scale high-end cylindrical rollers
The size range is φ20~φ120mm, The accuracy of the roller can reach the national standard level 1, and the deviation of the convex value of each measuring point is controlled within ±0.001mm
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Details
CHG introduced two large-scale high-end production lines this year. After nearly half a year of technical research and equipment upgrades, CHG has filled the domestic production of high-end large rollers. It has fully entered the mass production stage. The monthly output is currently 55,000 tablets of HKUST. With the continuous investment in technological transformation, the production capacity is expected to achieve the monthly output of 100,000 tablets.

The self-produced large-scale high-end tapered rollers and cylindrical rollers have an accuracy of level 1 of the national standard; the size range is φ20~φ120mm, the cylindrical and tapered roller bus bars have realized logarithmic curves, and the deviation of the crown value of each measurement point is controlled within ±0.001mm Within, it can be used under various severe working conditions. Such as wind power main shaft bearings, high-end rolling mill bearings and other fields; the SR deviation of the spherical base surface can be controlled within 3%, which accurately guarantees the formation of sufficient hydrodynamic lubrication conditions between the rollers and the bearing ribs, which is useful for prolonging the service life of the bearings. Improved reliability; the hollow roller wall thickness difference can be controlled within 0.03mm, which greatly increases the smoothness of the roller; the tapered roller with a diameter of φ105mm, the end face runout is within 0.006mm, which is much higher than the current national standard GB /T25767-2010 Grade 0 standard.
 
Accuracy Grade
 
Cylindrical Roller Accuracy Grade     Unit:μm
Roller Grade Dw/mm ΔRw SDw VDwL VLwL VDwmp Surface Roughness/Ra
(Roundn ess) (End face run-out) (Variation of lot diameter) (Variation of lot Length) (Variation of mean diameter) Outer Diameter End Face Chamfer
G1 3 18 0.5 6 1.5 5 0.8 0.1 0.125 1.25
G1A 3 30 0.8 6 2 7 1.2 0.125 0.16 1.25
G2 3 50 1 6 2 10 1.5 0.125 0.2 1.25
G2A 10 160 1.3 6 3 13 2 0.16 0.25 2.5
Overall Dimension
 
Cylindrical Roller Overall Dimension
Dw×Lw Dw×Lw Dw×Lw Dw×Lw Dw×Lw Dw×Lw Dw×Lw
(μm) (μm) (μm) (μm) (μm) (μm) (μm)
15×20 30×40 36×65 42×88 50×52 60×63 70×104
15×22 30×42 37×53 42×108 50×55 60×65 70×105
20×20 30×44 37×56 43×43 50×62 60×70 70×112
21×30 30×46 37×75 43×45 50×65 60×72 70×123
24×24 30×48 38×38 43×52 50×70 60×75 70×125
24×27 30×49 38×42 43×66 50×72 60×85 70×128
24×28 30×52 38×46 43×72 50×74 60×90 70×140
24×30 30×56 38×48 43×75 50×75 60×92 72×120
24×36 30×58 38×50 43×80 50×80 60×95 72×122
24×38 30×59 38×55 43×90 50×85 60×100 72×136
24×40 32×32 38×56 43×95 50×90 60×115 72×142
24×43 32×34 38×58 44×60 50×100 62×62 74×76
25×25 32×36 38×60 44×62 51×60 62×78 75×75
25×27 32×40 38×62 45×45 51×92 62×96 75×85
25×28 32×42 38×63 45×46 52×52 62×100 75×96
25×32 32×44 38×65 45×50 52×76 62×110 75×120
25×34 32×45 38×68 45×52 52×88 63×63 75×135.5
25×35 32×46 38×70 45×62 52×95 63×66 75×136
25×36 32×47 38×88 45×65 52×98 63×100 75×142.5
25×38 32×48 38×103 45×68 52×100 64×63 75×150
25×39 32×50 39×52 45×72 52×120 64×72 76×165
25×40 32×52 39×75 45×73 53×76 64×95 78×70
25×48 32×55 39×82 45×74 54×54 64×128 78×76
25×50 32×56 40×40 45×75 54×65 65×65 78×80
26×26 32×58 40×43 45×78 54×72 65×70 78×96
26×29 32×65 40×45 45×80 54×75 65×72 78×140
26×31 33×48 40×46 45×82 55×55 65×80 78×150
26×34 33×64 40×50 45×84 55×60 65×85 80×80
26×38 34×34 40×52 46×30 55×68.5 65×95 80×120
26×40 34×38 40×55 46×80 55×73 65×100 80×150
26×41 34×40 40×58 46×85 55×75 65×110 80×155
26×42 34×55 40×60 46×97 55×86 66×78 80×160
26×44 34×56 40×64 47×68 55×98 66×90 80×165
26×45 34×58 40×65 47×82 55×110 66×100 82×130
26×48 34×60 40×68 47×85 55×140 66×115 85×85
27×27 34×68 40×69 47.5×60 56×56 66×120 85×125
28×28 35×35 40×70 48×48 56×85 67×70 85×130
28×32 35×45 40×71 48×52 56×100 67×102 85×155
28×40 35×52 40×72 48×56 57×57 67×127 86×125
28×42 35×55 40×75 48×65 58×60 68×100 90×90
28×44 35×58 40×85 48×74 58×62 68×106 90×95
28×46 35×60 41×39 48×75 58×65 68×110 90×130
28×48 35×66 42×42 48×78 58×72 68×120 90×170
28×49 36×36 42×54 48×82 58×75 68×125 93×165
28×52 36×38 42×58 48×85 58×90 68×130 95×100
29×40 36×40 42×60 48×86 58×100 68.5×103 95×120
29×42 36×48 42×65 48×90 58×104 69×105 98×150
29×44 36×52 42×66 48×96 58×106 70×75 98×196
30×30 36×56 42×70 48×97 58×120 70×85 98×200
30×34 36×58 42×73 49×95 58×124 70×90 100×100
30×36 36×60 42×85 50×50 60×60 70×100 120×120
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