Jaw Coupling
General-purpose flexible jaw coupling for incidental misalignment.
- Torque
- 20 to 2,139 Nm
- Bore
- 15 to 90 mm
- Sizes
- Standard / External Spider / Cushion
Jaw, HRC, Pin Bush, Tyre, Gear & Resilient Couplings
A coupling joins a motor or gearbox to the machine it drives. Beyond transmitting torque, it has to absorb the shock of start-ups and load changes, and tolerate the small angular, parallel and axial misalignment that every installed drive develops over time.
Probe supplies six coupling families, from compact jaw couplings on light conveyors to gear couplings carrying over a million Nm on crushers and mills. Each is selected against the drive torque, speed, service factor and shaft sizes, then bored and keyed to suit.
- Torque capacity from 5 Nm to 1,470,000 Nm across the range
- Bores from 7 mm to 710 mm, finished to your shaft and keyway
- Elastomer types need no lubrication
- Taper Lock mounting available on HRC couplings
Typical across the range; confirmed per grade or size with the quotation.
Key Benefits
Shock Load Protection
Elastomer elements in jaw, HRC, tyre and pin bush couplings cushion start-up torque and load spikes before they reach motor bearings and gear teeth.
Misalignment Tolerance
Each type accommodates angular, parallel and axial offset within its rated limits, reducing bearing load and vibration on installed drives.
Fail-Safe Designs
Jaw and HRC couplings keep driving through interlocking jaws if the elastomer element wears out, so a worn insert does not stop the line without warning.
Low Maintenance
Elastomer couplings run without lubrication. Inserts and tyres can be replaced without moving the motor or driven machine on most designs.
Coupling Types
Six families covering light-duty conveyors through to high-torque crushers, mills and pumps.
HRC Coupling
Higher power & misalignment capacity; Taper Lock or through-bore.
- Torque
- 5 to 3,150 Nm
- Bore
- 9 to 115 mm
- Sizes
- HRC-70 to HRC-280
Pin Bush Coupling
Compact high-torque / high-speed flanges; no lubrication.
- Torque
- 77 to 197,600 Nm
- Bore
- 7 to 350 mm
- Sizes
- FBC-1 to FBC-17
Tyre Coupling
Highly elastic, backlash-free; absorbs shock and vibration.
- Power
- 0.22 to 132 kW @ 100 rpm
- Bore
- 9 to 190 mm
- Sizes
- F40 to F250
Gear Coupling
Crowned/curved tooth profile for high misalignment & power.
- Torque
- 1,100 to 1,470,000 Nm
- Bore
- 14 to 710 mm
- Sizes
- FGC-1 to FGC-19
Resilient Coupling
High power rating with greater flexibility; split cover for install.
- Power
- 0.45 to 1,308 kW @ 100 rpm
- Mount
- Vertical & horizontal split cover
- Flexibility
- High
Technical Specification
Typical values across the range. Exact figures depend on the grade or size selected and are confirmed for your application with the quotation.
- Torque range
- 5 to 1,470,000 Nm
- Bore range
- 7 to 710 mm
- Misalignment
- Angular, parallel and axial
- Jaw spider hardness
- 92 Shore A standard; 98 Shore A and 64 Shore D options
- Mounting
- Pilot bore, finished bore with keyway, or Taper Lock
- Lubrication
- None for elastomer types; grease for gear couplings
Applications
Conveyor Drives
Motor-to-gearbox and gearbox-to-pulley connections on belt and roller conveyors.
Crushers & Quarry Plant
Gear and pin bush couplings for high-torque, shock-loaded crushing and screening.
Cement & Aggregates
Kiln, mill and elevator drives running continuously in dusty conditions.
Food Processing Machinery
Compact jaw and tyre couplings on mixers, pumps and processing lines.
Pumps & Compressors
Tyre and HRC couplings that damp vibration between motor and pump.
Fans & Blowers
Flexible couplings for direct-drive ventilation and process air equipment.
Frequently Asked Questions
Need a coupling sized for your drive?
Send us the motor rating, speed, shaft sizes and application. Our UAE engineering team will recommend the right component and send a quotation.
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