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Flexible Rolling Bearings 3E904KAT2 18.8x25x4mm

Times:2019-07-01Clicks:428


Flexible rolling bearing utilizes controllable elastic deformation of the flexible components to transmit motion and power. It has characteristics of large transmission ratio, wide application range, high precision, small air return, large carrying capacity, high efficiency, small volume/size, light weight, smooth transmission, low noise, and can transfer motion to sealed space.

Harmonic drive transmission consists of three basic components: wave generator, flex spline, Circular Spline and flexible bearing. Among them, the flexible bearing is the core component, and the transmission achieves the performance requirement of high deceleration ratio through the elastic deformation of the bearing.

When the flexible bearing is in operation, the inner ring is mounted/installed on the elliptical cam, which bears the cyclic stress load during the work; while the outer ring is mounted/installed on the flexible wheel, and elastically deforms with the rotation of the cam during the work, which not only bears the cyclic stress load, but also withstands the alternating stress load.


Flexible Rolling Bearing Regular Models:

轴承型号
Model 
外形尺寸
Dimension 
mm
径向变形量
Max. Radial Deformation
额定转速
Input Rated Speed
额定力矩
Output Rated Torque
额定载荷
Load Rating 
KN
dDBmmr/minN.mDynamic load rating_CrStatic load rating_Cor
3E904KAT218.82540.2300023.753.12
3E905KAT2243250.2300064.743.75
3E806KAT2304060.33000167.125.83
1000907AKIT235.848.280.33000309.938.36
3E907KAT2375080.330003012.6312
3E809KAT2456090.430005012.8911.55
1000809AKIT245.761.89.50.430005012.8911.55
10008810AKT248639.70.430005012.8911.55
1000912AKT26080120.5300012027.1928.18
3E911KAT25775120.530007.514.7613.18
3E812KAT26080130.530001215.5114.44
3E814KAT27095150.630002022.3821.57
3E815KAT275100150.630002526.425.67
3E818KAT29012018130004534.734.94
3E822KAT211015024115008043.5545.63
3E824KAT2120160241150012057.0257.75
3E826KAT2130175301150017081.5986.1
3E830KAT2150200301150020091.6102.67
3E832KAT2160220351.251500220115.66127.59
3E836KAT2180240351.51500250130.04146.47
3E838KAT2190250401.51500350139.96160.42
3E842KAT2210280451.51500400173.15210.91
3E844KAT2220300451.51500500181.72231
F1425.0733.8966.0950.2300084.743.75
F1730.341.7226.160.33000167.125.83
F2035.5649.0737.240.33000309.938.36
F2545.21261.3419.0150.430005012.8911.55
F3258.92879.75611.810.5300012022.2820.91
M1425.0733.8966.0950.23000125.534.73
M1730.341.7226.160.33000248.317.35
M2035.5649.0737.240.330004512.6312
M2545.21261.3419.0150.430007516.416.58
M3258.92879.75611.810.5300018027.1928.18

Note: Most Flexible Rolling Bearings are installed with cage and cover, however, only a few of them are full balls without cages or covers.

 

Full balls types:

M14 Series Dimension dxDXH 25.07x33.896x6.095/6.35mm
M17 Series Dimension dxDXH 30.3x41.722x 6.16/6.68mm
M20 series Dimension dxDXH 35.56x49.073x7.24/8.13mm
M25 series Dimension dxDXH 45.212X61.341X9.015/6.35mm
M32 series Dimension dxDXH 58.928x79.756x11.81/8.64mm

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