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Catalogue R Series Rotary Actuator

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R Series Rotary actuator

The R Series is a heavy-duty rack and pinion style rotary actuator that is designed to excel in the most rigid applications. The R Series includes a high torque-to-size ratio as well as accurate positioning.

Rack and Pinion The rack and pinion is made from high strength alloy steel. It is induction hardened for long life. The geometry factors of the rack and pinion have been balanced to ensure equal wear, which provides maximum gear life. The pinion shaft includes a male key as standard offering.

Ball Bearings

The ball bearings are sealed and pre-lubed in an effort to prevent contamination from negatively affecting the operation. They are sized to except high loads and still retain smooth maintenance free operation.

Rack Bushing

The rack bushing is made from bearing bronze. The durability of the bushing enables it to support nearly the full length of the rack. Furthermore, we

have included a small gap to allow grease/lubrication to be added.

Standard Specifications:

• Bore sizes from 1" through 3-1/4"

• Nominal pressure rating is 150 psi air

• Standard rotations are: 45°, 90°, 180°, 270°, and 360°

• Minimum breakaway pressure: 5 psi non-cushioned, 10 psi cushioned

• Standard temperature -10°F to 165°F (-23°C to 74°C)

• NPTF ports

• Flexible port locating

The keyway at position 12:00, is always the mid-rotation of the actuator unless otherwise specified.

The profile tube is hard coat anodized. The hard coating is an electrochemical process, which produces a very dense surface of aluminum oxide. This surface has extreme hardness (60 RC), excellent wear and corrosion resistance, and low coefficient of friction.

End Caps

The end caps are accurately machined from (6061-T6) solid aluminum bar stock. They are anodized for corrosion resistance. Additionally, port positioning is extremely flexible.

Piston

The solid aluminum alloy piston is strong and durable. A magnet groove is standard allowing for easy field conversation.

Piston seal

The piston industrial seal is a carboxilated nitrile with Teflon® compound for self-lubricating. The U-cup type seal construction is proven and durable.

Wear Band

The wear band is a stable, lubricating strip located on the piston.

Grease Opening

A 1/4-28 tapped hole (which is plugged) is provided for future installation of an optional grease fitting. Note that the unit is pre-lubed.

Teflon® is a registered trademark of DuPont™. For detailed information regarding the properties of Teflon®.

Information subject to change without notice. For ordering information or regarding your local sales office visit www.numatics.com.