Ball Bearings Catalog Page D121 Super Precision Ball Bearings-Pillow Block Units

Super Precision A D TIMKEN PRODUCTS CATALOG D121 KEYWAY DT DB DF KEYWAY DT DB DF Ex-Cell-O Preload Bore (in.) O.D. (in.) Width - Pair (in.) Maximum (RPM) Bearing Number Part No. lbs. Max. Min. Max. Min. Grease Oil Mist MM20XWOCRDU E9103A XLO 20-107 0 0.37500 0.37485 1.1250 1.1248 0.6875 0.6675 40000 65000 80000 MM30XWOCRDU E9103C XLO 30-57 10 0.62500 0.62485 1.5000 1.4998 1.0000 0.9800 27000 30000 35000 MM30XWOCRDU E9103A XLO 30-107 0 0.62500 0.62485 1.5000 1.4998 1.0000 0.9800 35000 40000 60000 MM55XWOCRDU E9103E XLO 55-27 50 0.81250 0.81235 2.0000 1.9998 1.0000 0.9800 5000 8000 12000 MM55XWOCRDU E9103C XLO 55-57 20 0.81250 0.81235 2.0000 1.9998 1.0000 0.9800 20000 22000 24000 MM55XWOCRDU E9103A XLO 55-107 0 0.81250 0.81235 2.0000 1.9998 1.0000 0.9800 24000 27000 45000 MM57XWOCRDU E9103F XLO 57-17 100 1.06250 1.06235 2.2500 2.2498 1.0000 0.9800 2000 4000 6000 MM57XWOCRDU E9103C XLO 57-57 20 1.06250 1.06235 2.2500 2.2498 1.0000 0.9800 18000 20000 22000 MM57XWOCRDU E9103A XLO 57-107 0 1.06250 1.06235 2.2500 2.2498 1.0000 0.9800 22000 25000 35000 MM67XWOCRDU E9103F XLO 67-17 90 1.25000 1.24980 2.4375 2.4373 1.2500 1.2300 36000 4500 6000 MM67XWOCRDU E9103C XLO 67-57 20 1.25000 1.24980 2.4375 2.4373 1.2500 1.2300 12500 15000 20000 MM67XWOCRDU E9103A XLO 67-107 0 1.25000 1.24980 2.4375 2.4373 1.2500 1.2300 16000 20000 30000 MM90XWOCRDU E9103F XLO 90-17 250 1.62500 1.62480 3.4375 3.4372 1.6250 1.6050 1000 2000 4000 MM90XWOCRDU E9103D XLO 90-47 175 1.62500 1.62480 3.4375 3.4372 1.6250 1.6050 3000 5000 8000 MM90XWOCRDU E9103C XLO 90-57 100 1.62500 1.62480 3.4375 3.4372 1.6250 1.6050 5000 7000 11000 MM90XWOCRDU E9103A XLO 90-77 20 1.62500 1.62480 3.4375 3.4372 1.6250 1.6050 10000 14000 20000 MM115XWOCRDU E9103E XLO 115-27 300 2.25000 2.24980 4.7500 4.7496 2.2500 2.2300 1000 2000 3000 MM115XWOCRDU E9103C XLO 115-47 150 2.25000 2.24980 4.7500 4.7496 2.2500 2.2300 3000 4500 7000 MM115XWOCRDU E9103A XLO 115-77 30 2.25000 2.24980 4.7500 4.7496 2.2500 2.2300 6000 8000 15000 MM135XWOCRDU E9103C XLO 135-67 50 1.25000 1.24980 2.6875 2.6873 1.2500 1.2300 6000 7000 12000 MM135XWOCRDU E9103A XLO 135-10 70 1.25000 1.24980 2.6875 2.6873 1.2500 1.2300 15000 19000 28000 MM155XWOCRDU E9103D XLO 155-37 300 2.75000 2.74980 4.7500 4.7496 2.2500 2.2300 1000 2000 3000 MM155XWOCRDU E9103B XLO 155-67 150 2.75000 2.74980 4.7500 4.7496 2.2500 2.2300 4000 5000 6500 MM155XWOCRDU E9103A XLO 155-87 50 2.75000 2.74980 4.7500 4.7496 2.2500 2.2300 6000 7000 10000 MM165XWOCRDU E9103E XLO 165-27 800 3.50000 3.49975 6.3125 6.3121 3.0000 2.9800 500 1000 2000 MM165XWOCRDU E9103C XLO 165-57 250 3.50000 3.49975 6.3125 6.3121 3.0000 2.9800 2000 3000 5000 MM165XWOCRDU E9103A XLO 165-87 50 3.50000 3.49975 6.3125 6.3121 3.0000 2.9800 5000 6500 9000 Do not interchange with MM-EX. MM-XWO produced to nominal minus tolerance. MM-XWO REPLACEMENT BEARINGS -FOR EX-CELL-O SPINDLES TIMKEN MM-EX AND MM-XWO BEARINGS FOR REPLACEMENT ON EX-CELL-O SPINDLES Old design, MM-EX Bore and O.D. Tolerance Nominal + Tolerance "WI" Construction New Design, MM-XWO Bore and O.D. Tolerance Nominal - Tolerance "WO" Construction

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