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helical gear

The teeth of a helical gear are set at an angle (relative to axis of the apparatus) and take the shape of a helix. helical gear - Linn Helical Gear 220x300This allows the teeth to mesh steadily, starting as point contact and developing into collection contact as engagement progresses. Probably the most noticeable benefits of helical gears over spur gears can be much less noise, especially at medium- to high-speeds. Also, with helical gears, multiple the teeth are usually in mesh, this means less load on every individual tooth. This results in a gear rack smoother transition of forces from one tooth to the next, so that vibrations, shock loads, and wear are reduced.

However the inclined angle of the teeth also causes sliding get in touch with between your teeth, which creates axial forces and heat, decreasing efficiency. These axial forces play a significant part in bearing selection for helical gears. As the bearings have to endure both radial and axial forces, helical gears require thrust or roller bearings, which are typically larger (and more expensive) compared to the simple bearings used in combination with spur gears. The axial forces vary in proportion to the magnitude of the tangent of the helix angle. Although bigger helix angles provide higher quickness and smoother movement, the helix angle is typically limited by 45 degrees because of the creation of axial forces.

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MATERIALS AVAILABLE

1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request

SURFACE TREATMENT

Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.

PROCESSING METHOD

CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly

QC & CERTIFICATE

Technicians self-check in production,final-check before package by professional Quality inspector

ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009

PACKAGE & LEAD TIME

Size: Drawings

Wooden Case/Container and pallet, or as per customized specifications.

15-25days samples. 30-45days offcial order

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