Conveyor Belt Taper Rollers Self Aligning Roller Conical Roller

Structure of the roller
Roller is assembled with shaft, shell, housing, in seal, bearing, labyrinth seal, cover, protective cover and circlip
Technical requirments on the material
1)Steel tube:
*Carbon steel
*Surface of steel tube should be smooth
*without any fault such as crack, folding, layering or lap welding
*Ovality shoud be less than 1/2 of tolerance of outer diameter
*curvature should be less than 1.0mm/mOuter D
mmThickness S
mmTheoretical WT
kg/mAllowable deviation mmOuter diameterWall thicknessWall thickness differenceNormalHigh levelNormalHigh level63.53.24.76±0.50±0.30±0.32±0.24≤7.5%4.56.55±0.45±0.3476.03.25.74±0.50±0.30±0.32±0.244.57.93±0.45±0.3489.03.26.77±0.60±0.40±0.32±0.244.59.38±0.45±0.34108.03.28.27±0.70±0.40±0.32±0.244.511.49±0.45±0.34133.04.514.26±0.80±0.60±0.45±0.345.015.78±0.50±0.38159.04.517.14±0.90±0.60±0.45±0.345.018.99±0.50±0.386.022.64±0.60±0.45194.05.023.30±1.0±0.80±0.50±0.386.027.32±0.60±0.45219.05.026.39±1.1±0.80±0.50±0.386.031.52±0.60±0.45
2)Bearing
*Rollers adopt C3 deep groove radial ball bearing which adopts bidirectional seal structure
to improve the performance of water-proof and dust-proofing.
*Brand: SKF/NSK/NTN/HRB/KOYO/IKO/THK/TIMKEN, etc.
(Make sure the quality of bearing)3)Seal
Non-contact seal:
It is seal and its relative motion parts don't contact, and there is proper clearance seal.
Advantage
*Almost do not produce friction heat in the work
*No wear and tear, especially suitable for high speed and high temperature occasion.
*Forming acomplex, winding and narrow maze between inner and outer seal part.
*The good performance of water-proof and dust-proof.4)Lubricating oil
Rolling bearing lubrication purpose is to reduce the bearing internal friction and wear, prevent burning stick.The lubrication effect is as follows.
*Reduce the friction and wear
*To extend the fatigue life
*Discharge the friction heat and cooling
*To prevent foreign matter into the bearing internal, or to prevent rust and corrosion
ETC.
TechnicalRequirments on the production
Cutting size of the tube, tube length will be carried out on tolerance level IT.
Size(mm)250-
315315-
400400-
500500-
630630-
800800-
10001000-
12501250-
1600Tolerance
(mm)0.320.360.40.440.50.560.660.78
Cut of the tube, bevel roughness will be checked according to max value (12.5_6.3μm) of Ra. The bevel size on two ends should be same without any bur. Cut surface on two ends of the tube should be parallel, will be checked on tolerance level IT10.Please see tolerance size in the sheet below. (take diameter as standard.)Size(mm)63-100100-160160-250Tolerance(mm)0.150.200.25Diameter tolerance of installing stop of the bearing housing should conform tolerance level H9, for size requirements please see the sheet below.Size(mm)50-8080-120120-180180-250Tolerance(mm)0-0.0740-0.0870-0.100-0.115
Depth tolerance on one end of installing stop of bearing housing should be processed and checked on standard 0-0.2mm. Space distance tolerance of bearing housing stop should be in the range of 0-0.2mm. Roughness on processing part of the tube should be checked on 6.3-3.2μm(max value of Ra) without any bur.Roller Specification:NO.Standard DiameterLength Scope
(mm)Bearings Type
Min~MaxIdler's Shell Wall ThicknessmmInch163.52 1/2150-3500203 2043.0mm~4.0 mm27632043.0mm~4.5 mm3893 1/3204 2053.0mm~4.5 mm41024204 205 206 3053.2mm~4.5 mm51084 1/4204 205 206 305 3063.5mm~4.5 mm61144 1/2204 205 206 305 3063.5mm~4.5 mm71275204 205 206 305 3063.5mm~5.0 mm81335 1/4204 205 206 207 305 3063.5mm~5.0 mm91405 1/2205 206 207 305 306 3073.5mm~5.0 mm101526205 206 207 305 306 307 3084.0mm~5.0 mm111596 1/4205 206 207 305 306 307 3084.0mm~5.0 mm121656 1/2206 207 305 306 307 3084.5mm~6.0 mm13177.87207 306 307 308 3094.5mm~6.0 mm14190.77 1/2207 306 307 308 309 3104.5mm~7.0 mm151947 5/8207 306 307 308 309 3104.5mm~8.0 mm162198 5/8308 309 310 3124.5mm~8.0 mm