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Servo Couplings

Pacific International Bearing Sales offers a comprehensive selection of Ruland servo couplings engineered for precision motion control applications. Available in rigid, beam, bellows, curved jaw, disc, and Oldham styles, these zero-backlash couplings are designed to address key performance factors such as shaft misalignment, torque, speed, and space constraints. With a wide range of sizes and materials, users can find the ideal coupling to meet their specific application needs. All Ruland servo couplings are proudly manufactured in Marlborough, MA for consistent quality and reliability.

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Brand

Ruland (9000)

Note

Stainless steel hubs are available upon request. (3362)

Length (L)

0.661 in (12)

0.661 in (16.8 mm) (20)

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1.076 in (27.3 mm) (28)

1.102 in (28.0 mm) (28)

1.181 in (30.0 mm) (112)

1.189 in (30.2 mm) (52)

1.250 in (31.8 mm) (112)

1.306 in (33.2 mm) (36)

1.313 in (33.3 mm) (181)

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1.345 in (34.2 mm) (124)

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1.374 in (34.9 mm) (143)

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1.700 in (43.2 mm) (181)

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1.962 in (49.8 mm) (181)

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2.165 in (55.0 mm) (271)

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3.531 in (89.7 mm) (272)

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9.4 mm (6)

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0.984 in (25.0 mm) (202)

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1.250 in (31.8 mm) (528)

1.313 in (33.3 mm) (755)

1.500 in (38.1 mm) (478)

1.625 in (41.3 mm) (991)

2.000 in (50.8 mm) (947)

2.250 in (57.2 mm) (1269)

2.750 in (69.9 mm) (544)

3.125 in (79.4 mm) (544)

6 mm (12)

8 mm (12)

13 mm (40)

16 mm (72)

20 mm (98)

25 mm (128)

Material

Aluminum (7751)

303 Stainless Steel (1249)

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0.0938 in (8)

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41.9 mm (72)

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46.8 mm (72)

B2 Max Shaft Penetration

0.265 in (4)

0.265 in (6.7 mm) (4)

0.276 in (24)

0.276 in (7.0 mm) (40)

0.311 in (12)

0.311 in (7.9 mm) (44)

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0.339 in (8.6 mm) (66)

0.354 in (6)

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0.356 in (9.0 mm) (8)

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0.377 in (9.6 mm) (36)

0.378 in (24)

0.378 in (9.6 mm) (117)

0.417 in (10.6 mm) (18)

0.422 in (40)

0.422 in (10.7 mm) (64)

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0.461 in (11.7 mm) (26)

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0.483 in (12.3 mm) (15)

0.499 in (39)

0.499 in (12.7 mm) (98)

0.517 in (6)

0.517 in (13.1 mm) (12)

0.535 in (13.6 mm) (16)

0.559 in (14.2 mm) (52)

0.570 in (12)

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46.8 mm (88)

2993 (4)

Bore Tolerance

+0.001 in / -0.000 in (1130)

+0.001 in / -0.000 in (+0.020 mm / -0.000 mm) (240)

+0.001 in / -0.000 in (+0.025 mm / -0.000 mm) (826)

+0.001 in / -0.000 in (+0.03 mm / -0.00 mm) (2340)

+0.004 in / +0.001 in (56)

+0.010 mm / -0.000 mm (24)

+0.020 mm / +0.000 mm (338)

+0.025 mm / -0.000 mm (856)

+0.03 mm / -0.00 mm (2650)

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18-8 300 Series Stainless Steel (680)

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10 mm (71)

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14 mm (2)

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12 mm

0.3125 in

1.000 in (25.4 mm)

1.523 in (38.7 mm)

BCLK16-12MM-5/16"-A

Ruland Brand / 12mm X 5/16" Bellows Coupling With Keyways Bores / 1.000" (25.4mm) Od,, 1.523" (38.7mm) Length / Bellows Coupling With Keyways / Increased Misalignment / Aluminum

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$162.70 / each

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Product Added to Cart and Back Orders

Product Added to Back Orders

15 items added to cart, can be ordered and shipped today.
Within 24 hours, our sales team will contact you about the 10 Back Ordered products.

Feel free to contact us for more info - 1-800-228-8895

PIB Sales will contact you within 24 hours regarding your 25 Back Ordered items

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Brand

Note

Length (L)

O.D. (D)

Material

Bore (B1)

Bore (B2)

Keyway

B1 Max Shaft Penetration

B2 Max Shaft Penetration

Bore Tolerance

Screw Material

Screw Finish

Forged Clamp Screw

ISO 9001:2015

REACH

RoHS3

Conflict Minerals

Tariff Code

Product Group

Keyway (K1)

Keyway (K2)

Bore (B1)

Bore (B2)

O.D. (D)

Length (L)

Product

Files

Price

MDCS41-12-10-A

$112.77 / each

MDCS41-12-11-A

$112.77 / each

MDCS41-12-12-A

$112.77 / each

MDCS51-12-12-A

$143.03 / each

BCL16-12MM-5/16"-A

$137.05 / each

BCL16-12MM-1/4"-A

$137.05 / each

BCL16-12MM-3/8"-A

$137.05 / each

BCL21-12MM-3/8"-A

$147.99 / each

BCL21-12MM-5/16"-A

$147.99 / each

BCLK16-12MM-1/4"-A

$162.70 / each

BCLK16-12MM-3/8"-A

$162.70 / each

BCLK16-12MM-5/16"-A

$162.70 / each

Product Added to Cart and Back Orders

Product Added to Back Orders

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