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About

Beam Couplings

Ruland manufactured beam couplings have high angular misalignment capabilities, are zero-backlash and have a balanced design for reduced vibration at high speeds. They are manufactured from a single piece of aluminum or stainless steel with multiple sets of spiral cuts to provide higher stiffness and better all-around misalignment capabilities than traditional single beam couplings. Ruland beam couplings are available in inch, metric, and inch to metric bore sizes ranging from 3/32" to 3/4" and 3mm to 20mm. they are commonly used in encoder, tachometer, and light duty power transmission applications where precise motion control is desired.

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Beam Couplings
Bellows Couplings

Ruland manufactured bellows couplings have high torque and torsional stiffness capabilities, are zero-backlash, have a balanced design, and can accommodate all forms of misalignment. They are comprised of two anodized aluminum hubs and a stainless steel bellows making a lightweight low inertia coupling capable of speeds up to 10,000 RPM. The thin wall of the stainless steel bellows can easily flex while remaining rigid under torsional loads. Ruland manufactures bellows couplings hubs with or without keyways in clamp or set screw styles with inch, metric, and inch to metric bores ranging from 1/8" to 1" and 3mm to 25mm. They are commonly used in high performance stepper servo systems where precise motion control is required.

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Bellows Couplings
Controlflex Couplings

Ruland Controlflex couplings are a three-piece assembly with a balanced design comprised of two hubs joined to one or two center inserts called frogs. Clamp style hubs are manufactured with inch, metric, keyed, and keyless bores ranging from 1/8” to 1-1/2” and 3mm to 40mm for high customizability. The unique design of the frog concentrates forces onto its flexible limbs allowing for low bearing loads protecting sensitive small bearings in applications such as encoders or tachometers. Controlflex couplings are also electrically isolating since the hubs do not touch and frogs are made from acetal. They are manufactured by Schmidt-Kupplung in Germany and are RoHS3 compliant.

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Controlflex Couplings
Disc Couplings

Ruland manufactured disc couplings have high torque and torsional stiffness capabilities, are zero-backlash, have a balanced design, and can accommodate all forms of misalignment. They are manufactured in single disc styles for compact installations and double disc styles for higher misalignment capabilities. Ruland disc couplings are comprised of two anodized aluminum hubs, stainless steel disc springs, and a center spacer (double disc only) creating a lightweight low inertia coupling capable of speeds up to 10,000 RPM. Hubs are manufactured with or without keyways in clamp and set screw styles with bore sizes ranging from 1/8" to 1-1/4" and 3mm to 32mm. They are commonly used in high performance stepper servo systems where precise motion control is required.

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Disc Couplings
Jaw Couplings

Ruland manufactured zero-backlash jaw couplings have a highly customizable three-piece design, have high dampening capabilities, and can accommodate all forms of misalignment. The two aluminum hubs press fit onto an elastomeric center spacer called "the spider" allowing for consistent zero-backlash operation. Ruland zero-backlash jaw couplings have a balanced design for reduced vibration at speeds up to 8,000 RPM. Hubs are manufactured with or without keyways in clamp or set screw types with bore sizes ranging from 1/8" to 1-1/4" and 3mm to 32mm. Spiders are available in three durometers allowing the user to match coupling performance with system requirements. Zero-backlash jaw couplings are commonly used in applications with high acceleration/deceleration curves where dampening and precise motion control are required.

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Jaw Couplings
Oldham Couplings

Ruland manufactured oldham couplings have a highly customizable three-piece design, are zero-backlash, and have high parallel misalignment capabilities. Two anodized aluminum hubs press fit into the mating slots of the center disk allowing for zero-backlash operation and low bearing loads. Ruland oldham couplings have a balanced design for reduced vibration at speeds up to 6,000 RPM. Hubs are manufactured with or without keyways in clamp or set screw types with bore sizes ranging from 1/8" to 1-1/4" and 3mm to 30mm. Disks are available in three materials allowing the user to match coupling performance with system requirements. They are commonly used in stepper servo systems that require a high parallel misalignment coupling.

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Oldham Couplings

Products

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  1. Ruland BC10-3-2-A, Bellows Coupling
    BC10-3-2-A
    In stock
    Ruland BC10-3-2-A, 3/16" x 1/8" Bellows Coupling, Aluminum, Clamp Style, 0.590" OD, 1.072" Length
  2. Ruland BC10-4MM-1/8"-A, Bellows Coupling
    BC10-4MM-1/8"-A
    In stock
    Ruland BC10-4MM-1/8"-A, 4mm x 1/8" Bellows Coupling, Aluminum, Clamp Style, 0.590" (15.0mm) OD, 1.072" (27.2mm) Length
  3. Ruland BC16-1/4"-6MM-A, Bellows Coupling
    BC16-1/4"-6MM-A
    In stock
    Ruland BC16-1/4"-6MM-A, 1/4" x 6mm Bellows Coupling, Aluminum, Clamp Style, 1.000" (25.4mm) OD, 1.313" (33.3mm) Length
  4. Ruland BC16-5-4-A, Bellows Coupling
    BC16-5-4-A
    In stock
    Ruland BC16-5-4-A, 5/16" x 1/4" Bellows Coupling, Aluminum, Clamp Style, 1.000" OD, 1.313" Length
  5. Ruland BC16-8-4-A, Bellows Coupling
    BC16-8-4-A
    In stock
    Ruland BC16-8-4-A, 1/2" x 1/4" Bellows Coupling, Aluminum, Clamp Style, 1.000" OD, 1.313" Length
  6. Ruland BC16-8-8-A, Bellows Coupling
    BC16-8-8-A
    In stock
    Ruland BC16-8-8-A, 1/2" x 1/2" Bellows Coupling, Aluminum, Clamp Style, 1.000" OD, 1.313" Length
  7. Ruland BC21-12MM-3/8"-A, Bellows Coupling
    BC21-12MM-3/8"-A
    In stock
    Ruland BC21-12MM-3/8"-A, 12mm x 3/8" Bellows Coupling, Aluminum, Clamp Style, 1.313" (33.3mm) OD, 1.688" (42.9mm) Length
  8. Ruland BC21-13MM-5/16"-A, Bellows Coupling
    BC21-13MM-5/16"-A
    In stock
    Ruland BC21-13MM-5/16"-A, 13mm x 5/16" Bellows Coupling, Aluminum, Clamp Style, 1.313" (33.3mm) OD, 1.688" (42.9mm) Length
  9. Ruland BC21-15MM-5/16"-A, Bellows Coupling
    BC21-15MM-5/16"-A
    In stock
    Ruland BC21-15MM-5/16"-A, 15mm x 5/16" Bellows Coupling, Aluminum, Clamp Style, 1.313" (33.3mm) OD, 1.688" (42.9mm) Length
  10. Ruland BC21-16MM-1/2"-A, Bellows Coupling
    BC21-16MM-1/2"-A
    In stock
    Ruland BC21-16MM-1/2"-A, 16mm x 1/2" Bellows Coupling, Aluminum, Clamp Style, 1.313" (33.3mm) OD, 1.688" (42.9mm) Length
  11. Ruland BC21-5-5-A, Bellows Coupling
    BC21-5-5-A
    In stock
    Ruland BC21-5-5-A, 5/16" x 5/16" Bellows Coupling, Aluminum, Clamp Style, 1.313" OD, 1.688" Length
  12. Ruland BC26-1/2"-11MM-A, Bellows Coupling
    BC26-1/2"-11MM-A
    In stock
    Ruland BC26-1/2"-11MM-A, 1/2" x 11mm Bellows Coupling, Aluminum, Clamp Style, 1.625" (41.3mm) OD, 2.000" (50.8mm) Length
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