Spindle Couplings

Spindle Couplings

The LLE and LB designs offer the largest lube capacity of any gear spindle design available in the worldwide market today. This can increase the life of gearing, reduce replacement cost, and minimize unscheduled downtime. This results in cost savings to the mill.

ME and MB design: Incorporates unique features that are not normally offered by others. This includes multiple lubrication ports, rising ring seal design, and many others.

The SF and SL Series are auxiliary spindles for high misalignment applications. They can accommodate 6 degrees static misalignment per flex half.

CGG corrects carburized tooth distortion in the internal and external gear tooth flanks. This provides optimum tooth contact, torque capacity and gear life.

 

Features & Benefits:

 

LE SERIES – MAIN DRIVE SPINDLES


  • Roll and pinion casing with replaceable gear element (ring gear).
  • Splined replaceable hubs with retainer nut.
  • Maximum grease reservoir.
  • Floating seal on spindle shaft.
  • Thrust buttons on centerline of gear mesh.
  • Hub designed with angle limiter to protect the end ring bolts.

ME SERIES – MAIN DRIVE SPINDLES


  • Roll and pinion casing with replaceable gear element (ring gear).
  • Splined replaceable hubs with exterior bolting.
  • Floating seal on spindle shaft.
  • Thrust buttons on centerline of gear mesh.

SF SERIES – AUXILIARY SPINDLES


  • Exposed bolt furnished standard (shrouded bolt design on request).
  • Lip seal furnished standard, optional all-metal rising ring seal.
  • Custom designs on request.

SL SERIES – AUXILIARY SPINDLES


  • Adapter designed for quick roll change.
  • Lip seal furnished standard, optional all-metal rising ring seal.
  • Custom designs on request.
  • We use a setscrew to retain the sleeve on the adapter hub, rather than the troublesome retainer ring used by some competitors.

 

Additional Data

Table 3 Gear Tooth Capacity at 1 degree misalignment (Tc)

Size
Alloy AISI 4140
Nitrided
Alloy Nitralloy
Nitrided
Alloy AISI 8620
Carburized
Alloy AISI 3310
Carburized
Endurance Limit
(lb-in)
Yield Limit
(lb-in)
Endurance Limit
(lb-in)
Yield Limit
(lb-in)
Endurance Limit
(lb-in)
Yield Limit
(lb-in)
Endurance Limit
(lb-in)
Yield Limit
(lb-in)
4.0 796000 1804000 1109000 2806000 1365000 2888000 1874000 4913000
4.5 1183000 2636000 1649000 410000 2029000 4220000 2784000 7178000
5.0 1621000 3448000 2259000 5363000 2780000 5520000 3815000 9390000
5.2 1859000 4213000 2591000 6552000 3188000 6745000 4375000 11473000
5.7 2300000 5213000 3205000 8108000 3945000 8346000 5143000 14196000









6.0 3756000 6280000 3841000 9767000 4727000 10054000 6487000 17102000
6.4 3260000 7389000 4543000 11492000 5591000 1183000 7673000 20122000
6.8 3969000 8996000 5531000 13991000 6807000 14403000 9342000 24498000
7.2 4763000 10796000 6638000 16791000 8169000 17285000 11211000 29400000
8.0 6367000 14432000 8873000 22446000 10920000 23106000 14986000 39302000









8.5 7762000 17670000 10817000 27482000 13312000 28290000 18269000 48120000
9.0 9303000 21086000 12964000 32795000 15955000 33759000 21896000 57422000
9.5 11029000 24999000 15370000 38881000 18915000 40024000 25959000 68078000
10.0 12939000 29328000 18031000 45613000 22191000 46955000 30454000 79867000
10.5 15039000 34087000 20958000 53015000 25792000 54574000 35397000 92827000 









10.8 15482000 35092000 21575000 54578000 26552000 56183000 36440000 95564000
11.5 19255000 43646000 26833000 67882000 33023000 69878000 45320000 118858000
12.0 22051000 49981000 30729000 77735000 37818000 80021000 51901000 136110000
12.7 26124000 59214000 36105000 92095000 44803000 94803000 61488000 161254000









14.0 35647000 80800000 49676000 125667000 61136000 129363000 83902000 220038000
15.0 41823000 94800000 58283000 147441000 71728000 151778000 98438000 258163000
16.0 53436000 121123000 74466000 188381000 91644000 193921000 125771000 329847000

 

Table 5 - Model 6 Degree Series SF and SL Gear Spindle Specification

 

Size Series SF
OD
(inches)
Series SL
OD
(inches)
Alloy SISI 4140 Nitrided Gearing
Normal Torque Capacity (lb-in) of spindle gearing for Misalignment Indicated
Tn
1 deg
Tn
1.5 deg
Tn
2 deg
Tn
3 deg
Tn
4 deg
Tn
5 deg
Tn
6 deg
Tms
Shaft
1.5 6.00 4.00 26320 22400 18400 12800 10400 8000 5600 14000
2.0 7.00 5.00 52080 44000 36800 25600 20800 16000 10400 28500
2.5 8.38  6.00 87520 73600 61600 44000 35200 26400 17600 50600
3.0 9.44 7.00 149040 125600 104000 74400 59200 44800 29600 91300
3.5 11.00 8.00 241360 202400 168800 120800 96800 72800 48800 136000











4.0 12.50 9.00 350400 294400 244800  175200 140000 104800 70400 194000
4.5 13.62 10.00 492480 413600 344800 245600 196800 148000 99200 308000
5.0 15.31 11.62 659360 553600 461600 328800 263200 197600 132000 404000
5.5 16.56 12.62 878640 738400 615200 439200 351200 264000 176000 584000
6.0 18.00 14.00 1246720 1047200 872800 622400 498400 374400 250400 732000
7.0 20.75 15.75 1694800 1424000 1186400 845600 677600 508800 340000 1092000

 

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