XR External Gear

Crossed Roller Bearing (XR)
The Socare™ XR series of slewing rings:
• Greater load capacity per unit size in a low-torque design
• Single row of roller bearings alternating and crossed at 90°
for optimal load sharing
• Integral seals for maximum reliability
• Low frictional torque
• Outstanding axial, radial, and tilting moment load handling
• Durable and economical design
• Gearing: gearless, internal, and external
Applications (Medium and Heavy Duty):
• Grinding machines
• Industrial robots
• Industrial turntables
• Medical scanners and imagers
• Military weapon and gun turrets
• Mining and tunnel boring
• Satellite and radar antennas

Socare™ No.Kaydon* No.Outline Dimensions (in.) and Weight (lbs)Mounting Holes
Outer RingInner Ring
DodiHHo/Hi--DrW t/lbsLOnoBoLiniBi
SCB-XRE-4061633700116.0009.1902.1701.7701.85014.8809.2505514.094240.56210.197240.562
SCB-XRE-5921633800123.33313.7502.7502.500----17520.875120.68815.375120.688
SCB-XRE-6951633900127.36218.7803.0302.5202.24026.38018.90018025.197180.68820.000180.688
SCB-XRE-8541634000133.62726.5352.2051.7521.752----14030.90636M12*1.7527.480400.551
SCB-XRE-9221634100136.33324.5004.6904.3103.88035.50024.62558033.625240.81326.125240.813
SCB-XRE-11441634200145.05034.1803.9303.3603.47042.84034.25047041.338240.86635.826240.866
SCB-XRE-12961634300151.04040.0004.0003.500----68048.200360.81341.800360.813
SCB-XRE-16041634400163.15047.4805.1184.40961.06347.5591,42058.819361.02350.394361.023
SCB-XRE-17911634500170.51053.5405.0404.330----1,46065.354421.06355.906421.063
SCB-XRE-21811634600185.86675.2503.3002.800----92082.750480.81377.250480.813
SCB-XRE-255716347001100.66784.0006.5006.5004.00098.75084.2503,24095.000481-887.000481.063
Socare™ No.Kaydon* No.Gear Data α=20°Max Gear Tooth Loas
Fz (ibs)
D2Pd Or MZ2b2x2Tooth Form
SCB-XRE-4061633700115.6005781.4600FD4,320
SCB-XRE-5921633800123.00061382.5000FD7,430
SCB-XRE-6951633900126.969<5>1371.6500FD5,725
SCB-XRE-8541634000133.071<8>1051.7520FD9,130
SCB-XRE-9221634100136.00062164.0000FD12,700
SCB-XRE-11441634200143.701<10>1112.580+0.713FD15,490
SCB-XRE-12961634300150.4002.51263.5000SD24,380
SCB-XRE-16041634400161.811<10>1573.346+0.750FD20,640
SCB-XRE-17911634500168.346<14>1244.330+1.150FD36,690
SCB-XRE-21811634600185.33332562.8000SD18,280
SCB-XRE-255716347001100.00033006.0000FD32,030

*Kaydon is registered name of Kaydon Corporation.