Kompac Couplings
Advanced Features
Kompac Gear Couplings with Steel Bodies and Reinforced Nylon Outer Sleeve
Small Dimensions - for comparable power the small size and smooth exterior enhance safety and ease of installation.
Low Inertia - because of the small mass and small diameters run up and run down times are not significantly increased by the coupling.
Electrically Insulated - the nylon sleeve acts as an insulated component.
Quiet Operation - no metal to metal contact and close tolerances between the fully machined hubs and the sleeve means low backlash and low noise.
Compensation for Misalignment - will accept moderate misalignment ± 1° and radial misalignment of •4mm. Some life reduction can be expected.
Vibration Dissolution - the nylon sleeve will help to dampen small vibrations.
Ease of Assembly - just slide the elements together with 1-2mm end clearance.
Economical - a truly well priced solution to the coupling problem.
Extra large shaft - type B hub has an extended diameter to accept larger than usual motor shafts.
Steel Hubs - can be welded for special applications.
Details and Assembly Notes
Hubs - fully machined steel with blackened surface treatment. For wet corrosive or exterior situations, we recommend a little grease on the teeth and protective coating on the external steel surfaces.
Sleeve grade - 6.6 reinforced nylon. Particularly robust construction, temperature range -25°C to +80°C. Assemble with 1.2mm end float on the sleeve. 5mm between end faces of hubs. Permissable misalignment is dependent on speed and power. If maximum misalignment is expected choose a larger coupling and/or lubricate the teeth with a high melting point grease.
SELECTION PROCEDURE
Method 1: For electric motors at 1440 RPM. Multiply two service factors together, table 3 and table 4. Multiply by electric motor nameplate kilowattage.
Select appropriate coupling from Kw column of the table.
Method 2: For other speeds. Multiply the two service factors together, table 3 and table 4. Calculate maximum prime move torque. Multiply torque by combined service factors. Select appropriate coupling from torque column of table. Check allowable shaft size.
Table 1: Dimensions
| SIZE | A | B | C | D | E | G | H | MIN BORE | MAX BORE TYPE A | MAX BORE TYPE B |
| 24-6 | 65 | 45 | 30 | 35.5 | 33 | 60 | 10 | 12.5 | 22 | 24 |
| 38-19 | 95 | 63 | 45 | 53.5 | 40 | 80 | 13 | 12.5 | 32 | 38 |
| 60-75 | 125 | 100 | 60 | 90 | 55 | 115 | 19 | 19 | 55 | 60 |
Table 2: Ratings
| SIZE | KW/100 RPM | KW AT 1440 RPM | PEAK KW AT 1440 RPM | TORQUE KG-M | PEAK TORQUE KG-M | WEIGHT KG | MAXIMUM SPEED RPM |
| 24-6 | 0.2 | 3 | 6 | 2 | 4 | .5 | 5000 |
| 38-19 | 0.66 | 10 | 20 | 6.5 | 13 | 2 | 4500 |
| 60-75 | 2 | 30 | 60 | 19 | 38 | 6.5 | 4000 |
Table 3: Services Factors
| DRIVEN EQUIPMENT | SOURCE OF POWER | ||||
| Service Classification | Kinds | Characteristics | Electric Motor of Steam Turbine | Steam or Gasoline Engine 4 or more cylinders | Diesel or Gas Engine |
| A | Centrifugal fans, blowers or pumps Conveyor, evenly loaded | Even load - 8 hours/day service, non-reversing - low torque starting | 1 | 1.5 | 2.0 |
| B | Compressor, conveyor pulsating load machines, kilns & driers. Speed reducers, multi cylinder pumps, wood working machines etc. | Uneven load - 8 hours/day service. Moderate shock or torsional loads, non-reversing. This is the most common type of service | 1.5 | 2.0 | 2.5 |
| C | Presses, crushers, impact loads, Oilwell pumping equipment. | Heavy shock load - 8 hours/day service. High peak torsional loads. Reversing under load, full load starting. | 2.0 | 2.5 | 3.0 |
Table 4: Duty Factors
| 8 hour day | 1 | ||
| 12 hour day | 11/2 | ||
| 24 hour day | 2 | ||
