Couplers

Alpha BC2 - Bellows Coupling

Bellows couplings for direct drives.

• Material: Bellows made of highly flexible stainless steel.
• Design: With clamping hubs and a single lateral screw to ISO 4762. Any imbalance of the clamping hubs due to the design is compensated by balancing bores located on the hub interior.
• Temperature range: -30 to +120°C (-22 to 248 °F)
• Backlash: Completely backlash-free as a result of the frictional clamp connection.
• Service life: These torque limiters are permanent and maintenance-free as long as the performance limits are not exceeded.
• Fit tolerance: Tolerance between shaft and hub 0.01 – 0.05 mm
• Speeds: Up to 10,000 rpm / in excess of 10,000 rpm with finely balanced version.
• Brief overload: Acceptable up to 1.5 times the value specified.

Alpha BC3 Bellows Coupling

Bellows coupling for direct drives.

• Material: Bellows made of highly flexible stainless steel. Hub material: steel.
• Design: With split conical clamping hubs and strong, captive jack screws to ISO 4017.
• Temperature range: -30 to +120°C (-22 to 248°F)
• Backlash: Completely backlash-free as a result of the frictional clamp connection.
• Service life: These torque limiters are permanent and maintenance-free as long as the performance limits are not exceeded.
• Fit tolerance: Tolerance between shaft and hub 0.01 – 0.05 mm
• Speeds: Up to 10000 rpm / in excess of 10000 rpm with finely balanced version.
• Brief overload: Acceptable up to 1.5 times the value specified.

Alpha BCT Bellows Coupling

Low backlash metal bellows coupling for direct drives.

• Material: Hub: Series 15-150 high-strength alu, Series: 300-1500 steel, Bellows: High-strength stainless steel, Adapter flange: Steel
• Design: Load side: With clamping hubs and a single lateral screw to ISO 4762.
• Gearbox side: With flange connection and separate adapter flange.
• Temperature range: -30 to +120°C, (-22 to 248°F)
• Fit tolerance: Tolerance between shaft and hub 0.01 – 0.05 mm
• Speeds: Up to 10000 rpm
• Non-standard applications: Custom designs with different tolerances, keyways, non-standard material, bellows are available at short notice

Alpha EC2 Bellows Coupling

Bellows coupling with clamping hub for direct drives.

• Material: Bellows made of highly flexible stainless steel.
• Design: With clamping hubs and a single lateral screw to ISO 4762.
• Temperature range: -30 to +100°C (-22 to 212°F)
• Backlash: Completely backlash-free as a result of the frictional clamp connection.
• Service life: These torque limiters are permanent and maintenance-free as long as the performance limits are not exceeded.
• Fit tolerance: Tolerance between shaft and hub 0.01 – 0.05 mm
• Optional self-opening clamp system: For expanding the bore hole during assembly or dismantling.

Alpha TL1 - Torque Limiter

Torque Limiter Coupling for timing belt and sprocket applications.

• Material: High-strength, hardened steel.
• Design: Model TL1: 1.5 – 10 Nm (13.3 – 88.5 in.lb) with split clamping hub.
  Model TL1: 15 – 2500 Nm (132.8 – 22125 in.lb ) with conical clamping hub.
• Temperature range: -30 to +120°C (-22 to 248°F)
• Temperature peaks: up to +150°C (302°F)
• Backlash: Completely backlash-free as a result of the frictional clamp connection and patented preload.
• Service life: These torque limiters are permanent and maintenance-free as long as the performance limits are not exceeded.
• Fit tolerance: Tolerance between shaft and hub 0.01 – 0.05 mm

Alpha TL2 - Torque Limiter

Torque limiting coupling for direct drives.

• Material: Bellows made of highly flexible stainless steel. Safety section made of high-strength, hardened steel. Clamping hub material: up to series 80 aluminum and from series 150 steel.
• Design: With clamping hubs and a single lateral screw to ISO 4762.
• Temperature range: -30 to +120°C (-22 to 248 °F)
• Backlash: Completely backlash-free as a result of the frictional clamp connection and patented preload.
• Service life: These torque limiters are permanent and maintenance-free as long as the performance limits are not exceeded.
• Fit tolerance: Tolerance between shaft and hub 0.01 – 0.05 mm

Alpha TL3 Series - Torque Limiter

Torque limiting coupling for direct drives.

• Material: Bellows made of highly flexible stainless steel. Safety section made of high-strength, hardened steel. Hub material: steel.
  Design: With split conical clamping hubs and captive jack screws.
• Temperature range: -30 to +120°C (-22 to 248 °F)
• Backlash: Completely backlash-free as a result of the frictional clamp connection and patented preload.
• Service life: These torque limiters are permanent and maintenance-free as long as the performance limits are not exceeded.
• Fit tolerance: Tolerance between shaft and hub 0.01 – 0.05 mm