About
Friction bearing type pin-and-block universal joints from Ruland are designed for applications with moderate-to-high-torque requirements in a wide variety of industries. Also called cardan joints or pin-and-block universal joints, they are manufactured from alloy steel for high strength or stainless steel for better corrosion resistance. They are comprised of precision machined, selectively heat-treated and ground components (yokes, pins and blocks) to maximize performance and service life. Single plain bearing universal joints are best suited for space constrained applications and are capable of angular misalignment up to 45°, significantly more than commodity style single u-joints. Double u-joints are better suited for applications with a wide distance between shafts or requiring angular misalignment up to 90°.
Ruland friction universal joints are available in OD sizes ranging from 3/8” to 4” in bore sizes ranging from 3/16” to 2” or 5mm to 35mm. They can have finished bores with or without keyways or machinable bores allowing the user to make custom sizes or geometries. All bore configurations can include a set screw.
Needle-bearing universal joints from Ruland are designed for applications with increased speeds, low-to-moderate loads and requirements for extended service life in industries such as medical, packaging, and robotics. Also called cardan joints, they are comprised of high-quality needle-roller bearings, precision machined trunnions with hardened and ground journals and a choice of alloy or stainless-steel yokes for reduced friction and increased performance in applications requiring precision and an extended service life. The needle bearings are pre-lubricated and require no maintenance, reducing machine downtime and increasing service life. Most u-joints include dust seals for the bearings.
Needle-bearing universal joints are available with stainless steel yokes for better corrosion resistance. Boots are recommended for corrosive, washdown or sanitary applications as the trunnions and bearings are alloy steel. Bores can be customized for blind configuration, preventing shaft penetration into the center joint components and providing added protection against contamination.
Ruland needle-bearing universal joints are available in OD sizes ranging from 3/4” to 2” a plain bore or bore w/ keyway in sizes from 3/8” to 1” or 8mm to 25mm. All bore types are available with a single set screw.
Boot cover kits protect the universal joint from unwanted contaminants such as dust and can be packed with grease for lubrication retention. Boot kits come with a pair of zip ties that seat into grooves on each yoke of the universal joint to ensure a tight seal. Boots are made of Nitrile for durability and abrasion resistance, helping to protect the boot from being damaged and grease leaking out or contaminants entering the joint. Nitrile also has high resistance to petroleum-based oils and fuels, silicone greases, hydraulic fluids, water, and alcohol which are commonly present in operating environments where this universal joint is used.
Why Ruland?
- Smoothest operation and highest standard misalignment angles in the industry due to precision ground yoke ears, pins, and blocks.
- Design using a standard off-the-shelf product from our 3000 options:
- Single and double universal joints.
- Inch, metric, and inch-to-metric bore sizes with or without keyways.
- Friction and needle bearing universal joints.
- Eliminate the inherent problems caused by set screws with Ruland’s unique clamp style design.
- Increased durability and performance when compared to competitor products due to the use of higher-grade alloys.
Products
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As low as $247.65 $330.20Ruland MUS10-5-5-F, 5mm x 5mm Single Universal Joint, Friction Bearing, Steel, 9.4mm OD, 40.0mm Length
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As low as $297.18 $396.24Ruland MUS10-5-5-SS, 5mm x 5mm Single Universal Joint, Friction Bearing, Stainless Steel, 9.4mm OD, 44.5mm Length
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As low as $253.85 $338.47Ruland MUS13-6-6-F, 6mm x 6mm Single Universal Joint, Friction Bearing, Steel, 12.6mm OD, 40.0mm Length
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As low as $304.63 $406.17Ruland MUS13-6-6-SS, 6mm x 6mm Single Universal Joint, Friction Bearing, Stainless Steel, 12.6mm OD, 50.80mm Length
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As low as $260.64 $347.52Ruland MUS15-8-8-F, 8mm x 8mm Single Universal Joint, Friction Bearing, Steel, 15.8mm OD, 40.0mm Length
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As low as $312.78 $417.04Ruland MUS15-8-8-SS, 8mm x 8mm Single Universal Joint, Friction Bearing, Stainless Steel, 15.8mm OD, 57.2mm Length
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As low as $267.31 $356.41Ruland MUS19-10-10-F, 10mm x 10mm Single Universal Joint, Friction Bearing, Steel, 18.9mm OD, 45.0mm Length
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As low as $320.74 $427.65Ruland MUS19-10-10-SS, 10mm x 10mm Single Universal Joint, Friction Bearing, Stainless Steel, 18.9mm OD, 76.2mm Length
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As low as $269.69 $359.58Ruland MUS22-10-10-F, 10mm x 10mm Single Universal Joint, Friction Bearing, Steel, 22.1mm OD, 50.0mm Length
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As low as $323.58 $431.44Ruland MUS22-10-10-SS, 10mm x 10mm Single Universal Joint, Friction Bearing, Stainless Steel, 22.1mm OD, 76.2mm Length
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As low as $363.29 $484.38Ruland MUS22-12-12-F, 12mm x 12mm Single Universal Joint, Friction Bearing, Steel, 22.1mm OD, 50.0mm Length
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As low as $323.58 $431.44Ruland MUS22-12-12-SS, 12mm x 12mm Single Universal Joint, Friction Bearing, Stainless Steel, 22.1mm OD, 76.2mm Length
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As low as $273.98 $365.30Ruland MUS25-12-12-F, 12mm x 12mm Single Universal Joint, Friction Bearing, Steel, 25.3mm OD, 50.0mm Length
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As low as $328.77 $438.36Ruland MUS25-12-12-SS, 12mm x 12mm Single Universal Joint, Friction Bearing, Stainless Steel, 25.3mm OD, 85.7mm Length
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As low as $282.68 $376.90Ruland MUS29-14-14-F, 14mm x 14mm Single Universal Joint, Friction Bearing, Steel, 28.5mm OD, 56.0mm Length
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As low as $339.23 $452.30Ruland MUS29-14-14-SS, 14mm x 14mm Single Universal Joint, Friction Bearing, Stainless Steel, 28.5mm OD, 88.9mm Length
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As low as $289.89 $386.52Ruland MUS32-16-16-F, 16mm x 16mm Single Universal Joint, Friction Bearing, Steel, 31.6mm OD, 65.0mm Length
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As low as $347.84 $463.79Ruland MUS32-16-16-SS, 16mm x 16mm Single Universal Joint, Friction Bearing, Stainless Steel, 31.6mm OD, 95.3mm Length
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As low as $335.52 $447.36Ruland MUS38-18-18-F, 18mm x 18mm Single Universal Joint, Friction Bearing, Steel, 38.0mm OD, 72.0mm Length
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As low as $402.64 $536.85Ruland MUS38-18-18-SS, 18mm x 18mm Single Universal Joint, Friction Bearing, Stainless Steel, 38.0mm OD, 108.0mm Length
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As low as $335.52 $447.36Ruland MUS38-20-20-F, 20mm x 20mm Single Universal Joint, Friction Bearing, Steel, 38.0mm OD, 82.0mm Length
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As low as $402.64 $536.85Ruland MUS38-20-20-SS, 20mm x 20mm Single Universal Joint, Friction Bearing, Stainless Steel, 38.0mm OD, 108.0mm Length
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As low as $387.47 $516.62Ruland MUS44-22-22-F, 22mm x 22mm Single Universal Joint, Friction Bearing, Steel, 44.3mm OD, 95.0mm Length
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As low as $464.96 $619.94Ruland MUS44-22-22-SS, 22mm x 22mm Single Universal Joint, Friction Bearing, Stainless Steel, 44.3mm OD, 127.0mm Length