RK & MT Series Bearings

• Replaces “king post” style - more cost-effective designs reduce space, components, and hassle
• Greater design flexibility - handle light, medium, and heavy-duty loads, broad size range from 50mm to 870mm bore
• Simple installation - standard bolt hole patterns for efficient mounting, no shimming, no adjusting for clearance

RK Series medium duty bearings are ideal for turnstile, turntable, transfer line, and shop-floor assembly equipment applications. Kaydon’s RK Series bearings provide cost-effective solutions for material handling applications such as rotary tables, lifts, industrial positioners and transfer tables. These single row four-point contact (slewing ring) ball bearings offer high performance and reduced weight, plus optimized geometry that makes them easier to use and apply. The race geometry is designed to handle a combination of thrust and moment loads. Ball paths are induction hardened to ensure long life.

RK Series bearings feature standard bolt holes that make mounting easy. Available in bore sizes from 12" to 39" with internal and external gear, and nongeared configurations. Matching pinions are also available from stock.

MT Series medium to heavy-duty bearings offer increased design flexibility for work positioners, articulating arms, and industrial tables. Kaydon’s standard line of MT Series turntable bearings is ideally suited for medium and heavy-duty applications, including primary load bearings for ceiling or floor-mount manipulator pedestals, pallet transfer systems, and cranes.

MT Series bearings are an economical replacement for kingpost designs and feature four-point contact ball design for exceptional radial, thrust, and moment load capacities, making them ideal for overhanging loads. Available with or without external gears, MT Series bearings are available in 145mm to 870mm bore sizes.

Small bore MT bearings improve your design and lower manufacturing costs of manipulators, articulating arms, lift-assists, and balancers. If you develop and manufacture ergonomic lift-assist devices, work positioners, and articulating arms, there’s a Kaydon bearing that can increase your design flexibility. It’s a bolt-up bearing in popular compact sizes, and it eliminates the limitations imposed by traditional king post configurations so only one bearing is required in your assembly instead of two.

Engineered especially for manipulators and jib cranes, Kaydon’s small bore MT Series bearings are available in bore sizes from 50mm to 170mm. This series also incorporates a sealing system designed for minimal friction and contamination exposure. This compact, pre-engineered bearing package is designed to simplify your overall design, saving weight and space.

How the small bore MT Series bearing gives you a better design for less. Conventional bearings used in manipulators and articulating arms are complex and costly because they are usually mounted in the traditional “king post” design. Kaydon simplifies the design process with a single bearing installation that provides exceptional radial, thrust, and moment load handling, and features pre-engineered bolt holes for convenient assembly. There are fewer parts and less weight, so the bearing assembly requires less space. As shown in Figure 1, the shaft itself placed a constraint on how much weight (moment load) the equipment could handle. Small Bore MT series bearings (Figure 2) let you reconfigure for more efficient designs, providing even greater moment load capacities. Eliminating the solid king post-style shaft also lets you route other components, such as electrical, air, and hydraulic lines through a larger center hole, thus allowing greater design flexibility.