Our Capabilities As A Crown Gear Manufacturer

An effective approach to the gear noise problem that yields good results is crowning or barreling of the teeth. This technique involves changing the chordal thickness of the tooth along its axis. This modification eliminates end bearing by offering a contact bearing in the center of the gear.

Crowned Gears are necessary for applications where noise is a concern and self alignment is required. Crowning gear teeth reduces noise by alleviating misalignment through either assembly or thrust problems.

We are able to achieve crowning by crown hobbing in one of our gear hobbing machines, without any additional process. We can do different types of complex and multiple radius crowning based on your OEM design and drawings.

Gear tooth modifications, such as lead crowning, are often recommended to compensate for misalignment (e.g. assembly deviations). Lead crowning means that the tooth centre is slightly thicker than the tooth edges and is usually described as a circular arc profile.

The use of crowning shifts the peak load from the tooth flank edges and therefore reduces the risk for high contact pressures at the edges, which can otherwise result in a shortened service life.

• The Crowning technique involves changing the chordal thickness of the tooth along its axis. This modification eliminates end bearing by offering a contact bearing in the center of the gear.

• A second benefit of the crowning approach to gear cutting is the minimization of misalignment problems, caused by inaccurate machining of the casting, housing, shafting, gearboxes, or bearing journals.

• Crowning can also reduce lead problems in the gears themselves, which causes the gears to wear unevenly and bind because of eccentricities and position errors.

• Obviously, a gear with a center contact is less affected by discrepant manufacturing or design; furthermore, one can reduce the backlash requirements and allow the gears to wear in rather than wear out.