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What is the pressure angle

What is the pressure angle?

The pressure angle is the angle between the line of action and the normal to the surface of the tooth.

Related Questions

Are spur and planetary gearboxes bi-directional?

Yes, both spur and planetary gearboxes are designed to be used for bi-directional operation. The gear arrangement and the direction the input shaft rotates of the gearbox will determine the rotation of the output shaft. For bidirectional applications, the backlash of the gearbox should be taken into consideration.

How many planet gears are in a gearbox?

The amount of planetary gears in a gearbox varies based on the gear ratio. Most planetary gearboxes have from two to five planet gears. When looking at planetary gears, the strength of the gearbox is usually determined by the size of the sun gear. Larger sun gears will allow for higher torque values.

What are the advantages of a Planetary Gearbox?

Planetary gearboxes offer high power density, large reduction in a small volume, pure torsional reactions, multiple kinematic combinations, and coaxial shafting.

What are the disadvantages of a Planetary Gearbox?

Some disadvantages of planetary gearboxes include: A need for constant lubrication, high bearing loads, inaccessibility, and complex design.

What industries are planetary gearboxes typically used in?

Planetary gearboxes can be used in a variety of industries. Some typical industries include: Aerospace, Agriculture, Automotive, Construction, Food Processing, Marine Industry, and Power Plants.

What are planetary gearboxes?

Planetary Gearboxes are high-precision, motion-control devices that create a substantial amount of torque for their size, have high torsional stiffness, and low backlash--this is what makes them suited for a wide-range of applications.
what is a planetary gearbox

How do planetary gearboxes work?

A planetary gearbox takes a high-speed, low torque input from a motor, then reduces speed and increases torque at the output by the gear ratio.

Should I use grease or oil to lubricate my planetary gearbox?

Both oil and grease can effectively lubricate planetary gearboxes. However grease has the advantage of providing lubrication for the lifetime of the gearbox--eliminating a lot of maintenance. Grease allows mounting in any orientation and eliminates any concerns about leakage. Oil requires maintenance and re-lubrication over a period of time--usually once every few thousand hours. Orientation with oil lubrication can also be difficult and restricted. A common misconception is that oil-filled units always run at a cooler temperature than grease-lubricated gears. Whereas, the sealing required for an oil-filled gear head often generates more heat than the oil saves. It is important to take these notions into mind when deciding on a lubrication for your application.

What materials are used in Inline Planetary Gearboxes?

The materials in an inline planetary gearbox are usually steel, iron, aluminum, and brass. Unlike many other gearboxes, spur gearboxes will be made of plastics such as polycarbonate or nylon.

What are the advantages of planetary gearboxes?

The main advantages of planetary gearboxes are that they have high power density, are compact, have high efficiency in power transmission, greater stability, and good load distribution among planetary gears.

Additional Information

Planetary GearsPlanetary gearboxes are named so due to their resemblance to the solar system. The components of a planetary gearbox include a sun gear, ring gear and planetary gears. The sun gear is the central gear which is fixed in the center, ring gear (annulus ring) which is the outer ring with inward-facing teeth, and the planetary gears which rotate around the sun gears and mesh with both the sun and ring gear.








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