• Coupling Rating Chart (click to view each)
Stock Bores
Coupling Clearances

Coupling Selection Guide

  1. Determine the nominal torque(Tn) in "in-lb" as follows:
                     Nominal Torque = (H.P x 63025) / RPM
  2. Using the "Service Factor Chart" , select the appropriate Service Factor( Fs) for your application.
  3. Calculate the design torque (Td) as follows:
                             Design Torque = Nominal Torque x Service Factor
  4. Using the "Coupling Rating Chart" below, in the Design Torque Column, locate the nearest higher rating and find the corresponding coupling size to the left.
  5. Compare the driver/driven shaft size to the maximum bore available in the coupling selected. If it is smaller than the driver/driven shaft sizes, then go further down the "max.bore" column to select the coupling which can accomodate these shaft sizes. Check Stock Bore sizes in the chart .

Coupling Rating Chart

Coupling Size

Design Torqu(in-lb)

Max Bore Bushing Per Hub Max. RPM Hub OD HP@  1200 RPM HP @ 1800 RPM HP @ 3600 RPM
A 8,965 1.375" 3 6000 4.500" 171 256 512
B 22,200 2.000" 6 5250 5.250" 423 634 1268
C 35,103 2.500" 8 4500 6.000" 668 1003 2005
D 50,995 3.000" 10 3750 6.750" 971 1456 2913
E 69,733 3.750" 12 3600 7.500" 1328 1992 3983
F 115,747 4.000" 16 3600 9.000" 2204 3306 6611
G 146,107 5.000" 16 2400 11.000" 2782 4173 8346
H 201,609 6.000" 20 3600 12.000" 3839 5758 11516

For available stock sizes and for specific applications, Please .

Caution! As in all rotating equipment,caution should be exercised to follow all applicable safety procedures to avoid damage to equipment or injury to personnel

 
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