MRC Bearing Services
SKF USA, Inc.
890 Forty Foot Rd
Lansdale, PA
Phone: 1-267-436-6000 • Fax: 1-267-436-6001
Email: AskEngineeringHotline@skf.com
Website: http://www.skf.com/us/products/mrc/index.html
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High Precision Bearings for Ex-Cell-O Spindles
Unit of Measure
1 2 3 

Item #

Bore d

Outside Diameter D1

Width B

Grease Speed Rating Max. n1

Oil Speed Rating Max. n2

Oil Mist Speed Rating Max. n3

XO-90-RBDS N/A 41.280 mm N/A 87.3100 mm N/A 41.28 mm N/A 8000 rpm N/A 10000 rpm N/A 14000 rpm
XO-90-RBDS N/A 41.280 mm N/A 87.3100 mm N/A 41.28 mm N/A 10000 rpm N/A 14000 rpm N/A 20000 rpm
XO-90-RBDS N/A 41.280 mm N/A 87.3100 mm N/A 41.28 mm N/A 12000 rpm N/A 16000 rpm N/A 22000 rpm
XO-115-RBDS N/A 57.150 mm N/A 120.7000 mm N/A 57.15 mm N/A 750 rpm N/A 1500 rpm N/A 2250 rpm
XO-115-RBDS N/A 57.150 mm N/A 120.7000 mm N/A 57.15 mm N/A 1000 rpm N/A 2000 rpm N/A 3000 rpm
XO-115-RBDS N/A 57.150 mm N/A 120.7000 mm N/A 57.15 mm N/A 2200 rpm N/A 3500 rpm N/A 6000 rpm
XO-115-RBDS N/A 57.150 mm N/A 120.7000 mm N/A 57.15 mm N/A 3000 rpm N/A 4500 rpm N/A 7000 rpm
XO-115-RBDS N/A 57.150 mm N/A 120.7000 mm N/A 57.15 mm N/A 4000 rpm N/A 5000 rpm N/A 8000 rpm
XO-115-RBDS N/A 57.150 mm N/A 120.7000 mm N/A 57.15 mm N/A 6000 rpm N/A 8000 rpm N/A 15000 rpm
XO-135-RBDS N/A 31.750 mm N/A 68.2600 mm N/A 31.75 mm N/A 1000 rpm N/A 2000 rpm N/A 4000 rpm
XO-135-RBDS N/A 31.750 mm N/A 68.2600 mm N/A 31.75 mm N/A 3600 rpm N/A 4500 rpm N/A 6000 rpm
XO-135-RBDS N/A 31.750 mm N/A 68.2600 mm N/A 31.75 mm N/A 6000 rpm N/A 7500 rpm N/A 12000 rpm
XO-135-RBDS N/A 31.750 mm N/A 68.2600 mm N/A 31.75 mm N/A 10000 rpm N/A 12000 rpm N/A 18000 rpm
XO-135-RBDS N/A 31.750 mm N/A 68.2600 mm N/A 31.75 mm N/A 15000 rpm N/A 19000 rpm N/A 28000 rpm
XO-155-RBDS N/A 69.850 mm N/A 120.7000 mm N/A 57.15 mm N/A 250 rpm N/A 250 rpm N/A 250 rpm
XO-155-RBDS N/A 69.850 mm N/A 120.7000 mm N/A 57.15 mm N/A 500 rpm N/A 1000 rpm N/A 1500 rpm
XO-155-RBDS N/A 69.850 mm N/A 120.7000 mm N/A 57.15 mm N/A 1000 rpm N/A 2000 rpm N/A 3000 rpm
XO-155-RBDS N/A 69.850 mm N/A 120.7000 mm N/A 57.15 mm N/A 2500 rpm N/A 3500 rpm N/A 5000 rpm
XO-155-RBDS N/A 69.850 mm N/A 120.7000 mm N/A 57.15 mm N/A 4000 rpm N/A 5000 rpm N/A 6500 rpm
XO-155-RBDS N/A 69.850 mm N/A 120.7000 mm N/A 57.15 mm N/A 6000 rpm N/A 7000 rpm N/A 10000 rpm
XO-155-RBDS N/A 69.850 mm N/A 120.7000 mm N/A 57.15 mm N/A 7000 rpm N/A 9000 rpm N/A 12000 rpm
XO-165-RBDS N/A 88.903 mm N/A 160.3000 mm N/A 76.20 mm N/A 500 rpm N/A 800 rpm N/A 1200 rpm
XO-165-RBDS N/A 88.903 mm N/A 160.3000 mm N/A 76.20 mm N/A 500 rpm N/A 1000 rpm N/A 2000 rpm
XO-165-RBDS N/A 88.903 mm N/A 160.3000 mm N/A 76.20 mm N/A 1000 rpm N/A 2000 rpm N/A 4000 rpm
XO-165-RBDS N/A 88.903 mm N/A 160.3000 mm N/A 76.20 mm N/A 2000 rpm N/A 3000 rpm N/A 5000 rpm
Unit of Measure
1 2 3