Conflex Couplings

  • Coneflex Couplings have a unique concal design principle which provide maximum bearing area and more evenly distributed loads when operating in misaligned conditions.
  • Pressure surfaces of jaws are accurately die cast to form a cone segment.
  • Coupling jaws and inserts maintain their relative position even under misaligned conditions. This allows uniform compression that results in longer life.
  • Oil resistant high grade synthetic rubber inserts have similar pressure surfaces that conform to the die cast jaws. This provides an equalized and cushioned transfer of power.
  • Coupling halves are manufactured from high tensile zinc so rust problems are eliminated.

Coupling Halves

Coupling Halves

All Coneflex Coupling Halves are furnished with standard keyways and setscrews. Non standard Bore Sizes and keyways are available upon request. Couplings No. 1, No. 2, & No. 4 are available by Quotation.

Stock No. Coupling No. Bore Size Wt. Lbs.
233-0308 3 1/2 1.04
233-0309 3 9/16 1.03
233-0310 3 5/8 1.02
233-0311 3 11/16 1.01
233-0312 3 3/4 1.00
233-0314 3 7/8 0.97
233-0315 3 15/16 0.95
233-0316 3 1 0.93
233-0318 3 1-1/8 0.83

Coupling Inserts

Coupling Inserts

Stock No. Coupling No. Insert Type Wt. Lbs.
234-0200 2 Standard 0.02
234-0300 3 Standard 0.07
234-0400 4 Standard 0.14
234-H100 1R Heavy Duty 0.03
234-H200 2R Heavy Duty 0.08
234-H300 3R Heavy Duty 0.20

For ease of installation, wet insert with water.


Complete Coupling Dimensions

Complete Coupling Dimensions

Coupling No. A
Max.
B C D E F* G H
1 5/8 1-1/16 1.13 - 3/8 7/16 1-9/16 9/16
1R 5/8 1-1/16 1.13 1-7/16 3/8 7/16 1-9/16 9/16
2 7/8 1-5/8 1.75 - 1/2 9/16 2 23/32
2R 7/8 1-5/8 1.75 2-1/16 1/2 9/16 2 23/32
3 1-1/8 2-1/4 2.35 - 3/4 7/8 2-7/8 1
3R 1-1/8 2-1/4 2.35 2-3/4 3/4 7/8 2-7/8 1
4 1-5/8 2-15/16 3.00 - 7/8 1-1/16 3-9/16 1-1/4
4R 1-5/8 2-15/16 3.00 3-1/2 7/8 1-1/16 3-9/16 1-1/4

*Recommended distance between shaft ends.


Application Ratings

Coupling No. 100 RPM 870 RPM 1150 RPM 1750 RPM 3500 RPM
1 0.04 0.36 0.48 0.73 1.46
1 R 0.06 0.49 0.64 0.98 1.96
2 0.13 1.16 1.54 2.34 4.68
2 R 0.18 1.61 2.13 3.24 6.48
3 0.42 3.70 4.89 7.45 14.90
3 R 0.64 5.62 7.42 11.30 22.60
4 1.11 9.64 12.75 19.40 38.83
4 R 1.39 12.13 16.03 24.40 48.82

To Select the correct Coneflex coupling:

  1. Determine the horsepower rating of the supplying motor or engine and it’s maximum rpm.
  2. Determine the applications service factor number from the Service Factor Chart.
  3. Multiply the supplied horsepower by the service factor number. The result is the application rating number.
  4. From the Applications Ratings Chart, select the coupling that has a higher rating number than that calculated in step 3 above, at the specified rpm.

Service Factors

Uniform Service Factor 1.0 = Uniform Service

Service Class Electric Motor and Turbine Internal Combustion Engines
6 or More Cylinders Less Than 6 Cylinders
10 Hours 24 Hours 10 Hours 24 Hours 10 Hours 24 Hours
U Uniform 1 1.5 1.5 2 2 2.5
M Moderate 1.5 2 2 2.5 2.5 3
H Heavy Shock 2 2.5 2.5 3 3 3.5

Service Factors listed are intended only as a general guide.

Manufactured in the USA by G&G Manufacturing Company.