XR Internal 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)
*Dr=41.929 of 16331001
Mounting Holes
Outer RingInner Ring
DodiHHo/HiDrWt/lbsLOnoBoLiniBi
SCB-XRN-6781632800126.70018.6672.5002.000--13024.500181/2-1320.500181/2-13
SCB-XRN-9141632900136.00024.1603.8803.380--32.36046533.250240.81327.250303/4-10
SCB-XRN-10541633000141.50030.3204.1903.3704.000--51040.000360.80733.500363/4-16
SCB-XRN-10661633100141.97030.8283.3502.5602.95046.38040039.96124M20*2.534.64624M20*2.5
SCB-XRN-13901633200154.74044.4004.5003.7504.13065.15750053.000360.92248.000367/8-14
SCB-XRN-20021633300178.81962.9135.9064.92197.5002,05076.575481.18167.520481.181
SCB-XRN-289616334001114.00095.0006.0005.500--4,250111.000481.063100.000481-8
SCB-XRN-308516335001121.49697.7176.7726.299--6,080117.795721.535105.512721.535
Socare™ No.Kaydon* No.Gear Data α=20°Max Gear Tooth Loas
D2Pd Or MZ2b2x2Tooth Form
SCB-XRN-6781632800119.00061142.0000FD6,345
SCB-XRN-9141632900124.8002.5623.3800SD27,300
SCB-XRN-10541633000130.8002.5773.500-0.4FD27,600
SCB-XRN-10661633100131.102<10>792.950-0.625FD22,820
SCB-XRN-13901633200145.2002.51133.7500FD28,600
SCB-XRN-20021633300163.307<12>1344.528-0.5FD40,350
SCB-XRN-28961633400196.00021925.0000FD54,550
SCB-XRN-30851633500198.268<24>1046.299-0.708FD134,270

*Kaydon is registered name of Kaydon Corporation.