Unik Rigid shaft Couplings are high strength coupling helps to maintain alignment between two identically sizedshafts.
They are available with or without keyways in one and two-piece. Rigid Couplings are the basic but the mostcost-effective coupling.
Features:
- Extremely rigid connection
- High torque possible
- Wear and maintenance free
- Compact dimensions
- H8 tolerance and low roughness
Applications:
- Conveyors
- Food processing applications
- Lawn mowers
- Medical equipment e.g.xray machines
- Small wind turbines



Design available: one-piece or two-piece or set screw
With keyway or without keyway
Material available: Aluminum
Carbon Steel Black Oxidized
Stainless Steel
Size available: 6mm to 50mm shaft fit
1/4'' to 2'' shaft fit
Features: Cost saving for economy
High torque capacity
Zero backlash
Without the shaft damage and fretting
Misalignment free
Clamp Style Rigid Couplings for applications where alignment is critical, no backlash is desired, and flexibility is not required. The one-piece rigid coupling wraps around the shaft, providing high torsional holding power without the shaft damage and fretting. The two-piece rigid coupling has the additional benefit of allowing for disassembly and maintenance without removal of other components.
Black Oxide Steel |
Stainless Steel |
Inner Dia mm |
Outer Dia mm |
Length mm |
Clamp Screw |
Weight g |
RSC1-6-ST |
RSC1-6-SS |
6 |
18 |
30 |
M 3 x 8 |
47 |
RSC1-8-ST |
RSC1-8-SS |
8 |
24 |
35 |
M 3 x 10 |
102 |
RSC1-10-ST |
RSC1-10-SS |
10 |
29 |
45 |
M 4 x 12 |
185 |
RSC1-12-ST |
RSC1-12-SS |
12 |
29 |
45 |
M 4 x 12 |
180 |
RSC1-14-ST |
RSC1-14-SS |
14 |
34 |
50 |
M 5 x 16 |
272 |
RSC1-15-ST |
RSC1-15-SS |
15 |
34 |
50 |
M 5 x 16 |
266 |
RSC1-16-ST |
RSC1-16-SS |
16 |
34 |
50 |
M 5 x 16 |
261 |
RSC1-20-ST |
RSC1-20-SS |
20 |
42 |
65 |
M 6 x 16 |
518 |
RSC1-25-ST |
RSC1-25-SS |
25 |
45 |
75 |
M 6 x 16 |
623 |
RSC1-30-ST |
RSC1-30-SS |
30 |
53 |
83 |
M 6 x 18 |
920 |
RSC1-35-ST |
RSC1-35-SS |
35 |
67 |
95 |
M 8 x 25 |
1880 |
RSC1-40-ST |
RSC1-40-SS |
40 |
77 |
108 |
M 8 x 25 |
2710 |
RSC1-50-ST |
RSC1-50-SS |
50 |
85 |
124 |
M 10 x 25 |
3520 |
Black Oxide Steel |
Stainless Steel |
Inner Dia mm |
Outer Dia mm |
Length mm |
Clamp Screw |
Weight g |
RSC2-6-ST |
RSC2-6-SS |
6 |
18 |
30 |
M 3 x 8 |
47 |
RSC2-8-ST |
RSC2-8-SS |
8 |
24 |
35 |
M 3 x 10 |
102 |
RSC2-10-ST |
RSC2-10-SS |
10 |
29 |
45 |
M 4 x 12 |
185 |
RSC2-12-ST |
RSC2-12-SS |
12 |
29 |
45 |
M 4 x 12 |
180 |
RSC2-14-ST |
RSC2-14-SS |
14 |
34 |
50 |
M 5 x 16 |
272 |
RSC2-15-ST |
RSC2-15-SS |
15 |
34 |
50 |
M 5 x 16 |
266 |
RSC2-16-ST |
RSC2-16-SS |
16 |
34 |
50 |
M 5 x 16 |
261 |
RSC2-20-ST |
RSC2-20-SS |
20 |
42 |
65 |
M 6 x 16 |
518 |
RSC2-25-ST |
RSC2-25-SS |
25 |
45 |
75 |
M 6 x 16 |
623 |
RSC2-30-ST |
RSC2-30-SS |
30 |
53 |
83 |
M 6 x 18 |
920 |
RSC2-35-ST |
RSC2-35-SS |
35 |
67 |
95 |
M 8 x 25 |
1880 |
RSC2-40-ST |
RSC2-40-SS |
40 |
77 |
108 |
M 8 x 25 |
2710 |
RSC2-50-ST |
RSC2-50-SS |
50 |
85 |
124 |
M 10 x 25 |
3520 |

