Zero-Max 6A18-A1C CD single-flex composite-disc coupling, size 18, with aluminum servo hub style hubs. This precision motion-control coupling transmits torque while absorbing parallel and angular misalignment. Ideal for servo and general industrial applications requiring zero backlash and high torsional stiffness.

Angular misalignment

2

Axial misalignment

0.030 inches, 0.8 mm

Clamp Bolt Size (D)

M6

Clamp Screw to Bore (R)

0.71 inches, 18.0 mm

Clamp Screw to End of Hub (G)

0.29 inches, 7.2 mm

Continuous Rated Torque

180 in-lbs, 20 Nm

Distance Between Shaft Ends (C)

0.22 inches, 5.5 mm

Hub Length (B)

0.886 inches, 22.5 mm

Inertia at Max Bore

0.30 lb-in, 0.88 kg-cm

Inertia at Min Bore

0.32 lb-in, 0.95 kg-cm

Inside Diameter of Disc-Pack (H)

0.79 inches, 20.1 mm

Max Speed

15, 000 RPM

Maximum Bore (E)

1.000 inches, 26 mm

Minimum Bore (E)

0.375 inches, 8 mm

Outside Diameter (A)

2.09 inches, 53.0 mm

Overall Length

1.99 inches, 50.5 mm

Parallel misalignment

0.004 inches, 0.10 mm

Peak Rated Torque

360 in-lbs, 40 Nm

Tightening Torque (D)

115 in-lbs, 13 Nm

Torsional stiffness

11, 650 Nm/rad

Weight at Max Bore

0.44 lbs, 0.20 kg

Weight at Min Bore

0.57 lbs, 0.26 kg