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Inch/Metric
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0.1250 in
0.1875 in
0.2500 in
0.3125 in
0.3750 in
0.5000 in
0.6250 in
0.7500 in
0.8750 in
1.0000 in
1.1250 in
1.2500 in
3 mm
4 mm
5 mm
6 mm
7 mm
8 mm
9 mm
10 mm
11 mm
12 mm
13 mm
14 mm
15 mm
16 mm
17 mm
18 mm
19 mm
20 mm
21 mm
22 mm
24 mm
25 mm
28 mm
30 mm
32 mm
0.1250 in
0.1875 in
0.2500 in
0.3125 in
0.3750 in
0.5000 in
0.6250 in
0.7500 in
0.8750 in
1.0000 in
1.1250 in
1.2500 in
3 mm
4 mm
5 mm
6 mm
7 mm
8 mm
9 mm
10 mm
11 mm
12 mm
13 mm
14 mm
15 mm
16 mm
17 mm
18 mm
19 mm
20 mm
22 mm
24 mm
25 mm
28 mm
30 mm
32 mm
No
Yes
0.590 in
0.750 in
1.000 in
1.313 in
1.625 in
2.000 in
2.250 in
0.590 in (15.0 mm)
0.750 in (19.1 mm)
1.000 in (25.4 mm)
1.313 in (33.3 mm)
1.625 in (41.3 mm)
2.000 in (50.8 mm)
2.250 in (57.2 mm)
15.0 mm
19.1 mm
25.4 mm
33.3 mm
41.3 mm
50.8 mm
57.2 mm
1.076 in
1.306 in
1.345 in
1.700 in
2.035 in
2.413 in
3.235 in
1.076 in (27.3 mm)
1.306 in (33.2 mm)
1.345 in (34.2 mm)
1.700 in (43.2 mm)
2.035 in (51.7 mm)
2.413 in (61.3 mm)
3.235 in (82.2 mm)
27.3 mm
33.2 mm
34.2 mm
43.2 mm
51.7 mm
61.3 mm
82.2 mm
2.5 Nm
4.5 Nm
6.8 Nm
13.6 Nm
28.0 Nm
45.2 Nm
60.00 Nm
22 lb-in
40 lb-in
60 lb-in
120 lb-in
250 lb-in
400 lb-in
530 lb-in
22 lb-in (2.5 Nm)
40 lb-in (4.5 Nm)
60 lb-in (6.8 Nm)
120 lb-in (13.6 Nm)
250 lb-in (28.0 Nm)
400 lb-in (45.2 Nm)
530 lb-in (60.00 Nm)

1336 products

1336 products

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Bellows Couplings for Automation & Linear Motion

Ruland bellows couplings are made of two lightweight anodized aluminum hubs joined by a flexible stainless steel bellows. The thin walls of the bellows allow the coupling to flex under misalignment while remaining rigid under torsional loads. Engineers designing precision linear systems often prefer to use bellows couplings because they are lightweight, accommodate all forms of misalignment, and have the greatest size-for-size torque and torsional stiffness of any Ruland flexible coupling.

Ruland manufactures bellows couplings with a low inertia, zero-backlash design, making them a suitable option for high torque applications where a rigid coupling is not feasible due to weight or misalignment requirements. They are available in clamp and set screw hubs with or without keyways in bore sizes ranging from 1/8” to 1” and 3mm to 25mm.

Products

Items 1-24 of 1336

Set Ascending Direction Set Descending Direction
  1. BC10-3-3-A
    $120.04 ea
    Ruland BC10-3-3-A, 3/16" x 3/16" Bellows Coupling, Aluminum, Clamp Style, 0.590" OD, 1.076" Length
  2. BC12-4-4-A
    $112.57 ea
    Ruland BC12-4-4-A, 1/4" x 1/4" Bellows Coupling, Aluminum, Clamp Style, 0.750" OD, 1.303" Length
  3. BC16-6-6-A
    $125.06 ea
    Ruland BC16-6-6-A, 3/8" x 3/8" Bellows Coupling, Aluminum, Clamp Style, 1.000" OD, 1.345" Length
  4. BC16-8-8-A
    $125.06 ea
    Ruland BC16-8-8-A, 1/2" x 1/2" Bellows Coupling, Aluminum, Clamp Style, 1.000" OD, 1.345" Length
  5. BC21-10-10-A
    $135.04 ea
    Ruland BC21-10-10-A, 5/8" x 5/8" Bellows Coupling, Aluminum, Clamp Style, 1.313" OD, 1.700" Length
  6. BC21-6-6-A
    $135.04 ea
    Ruland BC21-6-6-A, 3/8" x 3/8" Bellows Coupling, Aluminum, Clamp Style, 1.313" OD, 1.700" Length
  7. BC21-8-8-A
    $135.04 ea
    Ruland BC21-8-8-A, 1/2" x 1/2" Bellows Coupling, Aluminum, Clamp Style, 1.313" OD, 1.700" Length
  8. BC26-10-6-A
    $150.06 ea
    Ruland BC26-10-6-A, 5/8" x 3/8" Bellows Coupling, Aluminum, Clamp Style, 1.625" OD, 2.035" Length
  9. BC26-8-8-A
    $150.06 ea
    Ruland BC26-8-8-A, 1/2" x 1/2" Bellows Coupling, Aluminum, Clamp Style, 1.625" OD, 2.035" Length
  10. BC32-14-8-A
    $180.09 ea
    Ruland BC32-14-8-A, 7/8" x 1/2" Bellows Coupling, Aluminum, Clamp Style, 2.000" OD, 2.413" Length
  11. BC32-8-8-A
    $180.09 ea
    Ruland BC32-8-8-A, 1/2" x 1/2" Bellows Coupling, Aluminum, Clamp Style, 2.000" OD, 2.413" Length
  12. BCK16-6-6-A
    $148.47 ea
    Ruland BCK16-6-6-A, 3/8" x 3/8" Bellows Coupling, Aluminum, Clamp Style With Keyway, 1.000" OD, 1.345" Length
  13. BCK16-8-4-A
    $148.47 ea
    Ruland BCK16-8-4-A, 1/2" x 1/4" Bellows Coupling, Aluminum, Clamp Style With Keyway, 1.000" OD, 1.345" Length
  14. BCK16-8-8-A
    $148.47 ea
    Ruland BCK16-8-8-A, 1/2" x 1/2" Bellows Coupling, Aluminum, Clamp Style With Keyway, 1.000" OD, 1.345" Length
  15. BCK21-10-5-A
    $161.10 ea
    Ruland BCK21-10-5-A, 5/8" x 5/16" Bellows Coupling, Aluminum, Clamp Style With Keyway, 1.313" OD, 1.700" Length
  16. BCK21-6-5-A
    $161.10 ea
    Ruland BCK21-6-5-A, 3/8" x 5/16" Bellows Coupling, Aluminum, Clamp Style With Keyway, 1.313" OD, 1.700" Length
  17. BCK21-8-5-A
    $161.10 ea
    Ruland BCK21-8-5-A, 1/2" x 5/16" Bellows Coupling, Aluminum, Clamp Style With Keyway, 1.313" OD, 1.700" Length
  18. BCK26-12-10-A
    $192.47 ea
    Ruland BCK26-12-10-A, 3/4" x 5/8" Bellows Coupling, Aluminum, Clamp Style With Keyway, 1.625" OD, 2.035" Length
  19. BCK32-14-12-A
    $231.48 ea
    Ruland BCK32-14-12-A, 7/8" x 3/4" Bellows Coupling, Aluminum, Clamp Style With Keyway, 2.000" OD, 2.413" Length
  20. BCK32-16-14-A
    $231.48 ea
    Ruland BCK32-16-14-A, 1" x 7/8" Bellows Coupling, Aluminum, Clamp Style With Keyway, 2.000" OD, 2.413" Length
  21. MBCK51-17-15-A
    $231.48 ea
    Ruland MBCK51-17-15-A, 17mm x 15mm Bellows Coupling, Aluminum, Clamp Style With Keyway, 50.8mm OD, 61.3mm Length
  22. MBCK51-18-17-A
    $231.48 ea
    Ruland MBCK51-18-17-A, 18mm x 17mm Bellows Coupling, Aluminum, Clamp Style With Keyway, 50.8mm OD, 61.3mm Length
  23. MBCK51-20-13-A
    $231.48 ea
    Ruland MBCK51-20-13-A, 20mm x 13mm Bellows Coupling, Aluminum, Clamp Style With Keyway, 50.8mm OD, 61.3mm Length
  24. MBCK51-20-15-A
    $231.48 ea
    Ruland MBCK51-20-15-A, 20mm x 15mm Bellows Coupling, Aluminum, Clamp Style With Keyway, 50.8mm OD, 61.3mm Length
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