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All Product Types > INDUSTRIAL MOTION PRODUCTS > Couplings & Power Transmission Parts Catalog > Gear Type Couplings > SIER-BATH® Gear Couplings > Continuous Sleeve Gear Type Couplings > CMM Type Mill Motor Coupling Hubs w/ Rough Stock Bore - Imperial > Part Number 69790400117  
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Part Number 69790400117, CMM Type Mill Motor Coupling Hubs w/ Rough Stock Bore - Imperial


    CMM Type Mill Motor Couplings

    The CMM Type coupling consists of one standard flex hub, one universal hub, one standard sleeve and one accessory kit consisting of seals and snap rings.
  • 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



Unit of Measure: Imperial Metric Both

Specifications  · Dimensional Data  · Performance Data  · Features  · Notes

Specifications

Description 
CMM-3.5-HUB-RSB

Type
Gear Coupling Hubs

Hub Material
AISI 1045

Style
Unbored

Color
Metallic

Bore Type
Rough Stock Bore

Coupling Type
Gear

Weight
56.00 lb

Complete Coupling Weight
77.00 lb


Dimensional Data

Size
3 1/2

Outside Diameter
7.500 in
7.50 mm

Max. Bore (Dimensions ID1/ID2)
1.25 in
32.00 mm

Overall Length 
Determined by Length of Mill Motor Hub

Dimension CBD
5.500 in
139.70 mm

Max. Safe Counterbore (Dimension CBD1)
4.500 in
114.30 mm

Dimension DC
0.250 in
6.35 mm

Dimension DC1
Determined by Customer Specifications

Dimension G
0.250 in
6.35 mm

Max. Length of Universal Hub (Dimension HL1)
6.500 in
165.10 mm

Dimension HD
5.380 in
136.65 mm

Dimension HL
4.250 in
107.95 mm

Dimension LS
4.000 in
101.60 mm

Dimension R
9.250 in
234.95 mm

Dimension SL
2.000 in
50.80 mm

Cubic inches
123.01370 in³


Performance Data

Nominal Torque
88200.00 in·lb

Max. Speed (Unbalanced)
2800.00 rpm

Max. Angular Misalignment
0.25 º

Parallel Misalignment
0.012 in


Features

Features 
  • Specifically designed for mill motors with tapered bores
  • Universal hub counterbored for the nut on the end of the motor shaft
  • One piece cylindrical sleeve for smoother, faster, quieter and safer operation
  • Quick assembly and disassembly


Notes

Notes 
  • HL1 Dimensions are the maximum lengths of Universal hubs kept in stock and altered to customer specifications.
  • Longer length hubs are made to order.
  • Dimension CBD1 as shown is the maximum safe counterbore. Diameter of this counterbore is to customer specifications.
  • Rough bore mill motor hubs are manufactured to HL1 length with straight bores.
  • Puller Holes are standard on sizes 4 through 12.
  • Puller Holes are available for sizes 7/8 through 3.5 at an additional charge.
  • Interference bores with no set screws are standard unless otherwise specified.
  • Inch bores and keyway tolerances conform to ANSI / AGMA 9002-B04.
  • For metric bores and keyway, consult Lovejoy Engineering Section.
  • Larger sizes are available, please consult Lovejoy Technical Support.


 MORE IMAGES 

·  CMM Type Mill Motor Couplings Alternative Type

·  C Type Continuous Sleeve Cut Away


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