The Timken Company - CMM Type Mill Motor Coupling Hubs w/ Center - Imperial

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CMM Type Mill Motor Couplings

Designed with longer universal hub on one end to accommodate straight or tapered shafts
Standard hub and sleeve on the other end
Universal hub bored to customer specifications
Available with longer universal hubs on both ends

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Items	69790400036 CMM Type Mill Motor Coupling Hubs w/ Center - Imperial	69790400057 CMM Type Mill Motor Coupling Hubs w/ Center - Imperial	69790400086 CMM Type Mill Motor Coupling Hubs w/ Center - Imperial	69790400104 CMM Type Mill Motor Coupling Hubs w/ Center - Imperial	69790400112 CMM Type Mill Motor Coupling Hubs w/ Center - Imperial
Description	N/A CMM-7/8-HUB-W/CENTER	N/A CMM-1.5-HUB-W/CENTER	N/A CMM-2-HUB-W/CENTER	N/A CMM-2.5-HUB-W/CENTER	N/A CMM-3-HUB-W/CENTER
Size	N/A 7/8	N/A 1 1/2	N/A 2	N/A 2 1/2	N/A 3
Type	N/A Gear Coupling Hubs
Hub Material	N/A AISI 1045
Overall Length	N/A Determined by Length of Mill Motor Hub
Style	N/A Unbored
Outside Diameter	N/A 3.310 in3.31 mm	N/A 3.750 in3.75 mm	N/A 4.750 in4.75 mm	N/A 5.500 in5.50 mm	N/A 6.630 in6.63 mm
Color	N/A Metallic
Nominal Torque	N/A 2500.00 in·lb	N/A 7600 in·lb	N/A 20200.00 in·lb	N/A 30200.00 in·lb	N/A 50400.00 in·lb
Bore Type	N/A Center
Max. Bore (Dimensions ID1/ID2)	N/A 1.25 in31 mm	N/A 1.630 in42 mm	N/A 2.130 in56 mm	N/A 2.630 in70.00 mm	N/A 3.13 in84.00 mm
Max. Speed (Unbalanced)	N/A 6000 rpm	N/A 5000 rpm	N/A 4200 rpm	N/A 3750.00 rpm	N/A 3600.00 rpm
Dimension CBD	N/A 1.940 in49.28 mm	N/A 2.250 in57.15 mm	N/A 3.000 in76.20 mm	N/A 3.750 in95.25 mm	N/A 4.750 in120.65 mm
Max. Safe Counterbore (Dimension CBD1)	N/A 1.630 in41.40 mm	N/A 1.880 in47.75 mm	N/A 2.750 in69.85 mm	N/A 3.250 in82.55 mm	N/A 3.880 in98.55 mm
Dimension DC	N/A 0.130 in3.30 mm	N/A 0.190 in4.83 mm	N/A 0.190 in4.83 mm	N/A 0.250 in6.35 mm	N/A 0.250 in6.35 mm
Dimension DC1	N/A Determined by Customer Specifications
Dimension G	N/A 0.130 in3.30 mm	N/A 0.130 in3.30 mm	N/A 0.130 in3.30 mm	N/A 0.250 in6.35 mm	N/A 0.250 in6.35 mm
Max. Length of Universal Hub (Dimension HL1)	N/A 3.750 in95.25 mm	N/A 4.000 in101.60 mm	N/A 4.630 in117.60 mm	N/A 5.130 in130.30 mm	N/A 5.750 in146.05 mm
Dimension HL	N/A 1.500 in38.10 mm	N/A 1.810 in45.97 mm	N/A 2.060 in52.32 mm	N/A 2.250 in57.15 mm	N/A 2.630 in66.80 mm
Dimension HD	N/A 2.000 in50.80 mm	N/A 2.380 in60.45 mm	N/A 3.250 in82.55 mm	N/A 3.94 in100.08 mm	N/A 4.750 in120.65 mm
Dimension LS	N/A 2.000 in50.80 mm	N/A 2.530 in64.26 mm	N/A 2.560 in65.02 mm	N/A 3.060 in77.72 mm	N/A 3.750 in95.25 mm
Dimension R	N/A 3.750 in95.25 mm	N/A 4.590 in116.59 mm	N/A 4.880 in123.95 mm	N/A 5.720 in145.29 mm	N/A 6.880 in174.75 mm
Dimension SL	N/A 1.000 in25.40 mm	N/A 1.270 in32.26 mm	N/A 1.280 in32.51 mm	N/A 1.530 in38.86 mm	N/A 1.880 in47.75 mm
Max. Angular Misalignment	N/A 0.50 º
Parallel Misalignment	N/A 0.005 in	N/A 0.007 in	N/A 0.007 in	N/A 0.007 in	N/A 0.010 in
Coupling Type	N/A Gear
Weight	N/A 1.20 lb	N/A 2.10 lb	N/A 11.50 lb	N/A 25.00 lb	N/A 25.00 lb
Complete Coupling Weight	N/A 7.00 lb	N/A 11.00 lb	N/A 19.00 lb	N/A 29.00 lb	N/A 46.00 lb
Cubic inches	N/A 6.00000 in³	N/A 10.25256 in³	N/A 21.75875 in³	N/A 34.92810 in³	N/A 59.33938 in³