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JIS3 Crown Wheel and Pinion Manufacturer Bevel Gear
LONGSUM bevel gear manufacturing services provide high precision crafting to maximize the functionality in powertrain / power transmission applications. Most specifically, motion and power between the intersecting shafts at a right angle.
Normally, their operation responsibility is to vary the drive direction within a power transmission system by ninety degrees. In addition, the precision ground teeth can be hypoid, spiral and straight. Learn more about the different custom types we produce.
A Spiral Bevel Gear are used to transmit power between shafts that are at a 90-degree orientation to each other. Also, these custom parts are engineered with precision teeth which have a unique curve and are oblique in shape. Spiral bevel gear teeth have one concave, one convex side, feature a curve and have a spiral angle. This spiral angle is located from the tooth trace and pitch cone, resembling a helix angle that is located in teeth of helical types.
Since spiral bevel gears are not offset, less sliding occurs within gear teeth. This results in a low temperature operation with more efficient functionality than hypoid gear types. Also, since there is a large amount of tooth surface this allows for greater interlocking during the rotation process. Because of this overall efficient operation, our custom spiral bevel gears are perfect for high speed, high torque transmission and power generation application types.
Capabilities:
- M0.8 to M6
- Maximum outer diameter is 300mm





| Gear Types | spur gear, helical gear, internal spur gear, ring gear, straight/spiral bevel gear, hypoid gear, crown wheel & pinion, gear shaft, worm gear & worm shaft, spline shaft & bushing, etc. |
| Gear Material | carbon steel, alloy steel, stainless steel, brass, bronze, casting iron, nylon, etc. { GB Steel: C45, 40Cr, 20CrMo, 20CrMoTi, 17CrNiMo6, 20CrMnTi, 42CrMo, etc. } |
| Processing | gear blank turning, gear hobbing, gear milling, gear shaping, gear shaving, tooth grinding, broaching, etc. |
| Heat Treating | quenching, carburizing, nitriding, carbon-nitriding, salt bath quenching, etc. |
| Application | Automotive, Agricultural, Electronic, Industrial, Medical, Defense, Off-highway, ect. |
All gears are packaged for safe shipping and convenient storage. Gears are carefully packaged using the most appropriate materials and method for the gear type.
We'd like to work with your forwarder to ship the products to you. We also work with experienced forwarders to shipping the products to client all over the world. If you don't have any forwarder to do the shipping, please let us know the most convenient port for you, then we can arrange the shipment for you.

Longsum Company has continued to build a solid reputation for quality, service and reliability. From the very beginning, Longsum has provided high precision spur, helical and bevel gears that meet the rapidly changing and demanding requirements of the gear industry.
Longsum's primary goal is to ensure customer satisfaction by improving the manufacturing process, eliminating waste, and delivering a quality product on time at a competitive price.
To achieve those objectives, Longsum has embraced the continuous improvement philosophy while implementing the most advanced technology available for the machining, heat treatment and inspection of our products. We are an verified supplier on Alibaba and have consistently received vendor awards for both quality and on-time delivery. Longsum takes great pride in its history of steady growth and its record for maintaining long-lasting customer relations.

Q: Do you make customized products based on our design drawings?
A: Yes, we are a professional metal fabrication supplier with experienced engineering team to make custom products according to clients’ drawings.
Q: Will my drawing be safe after you get it?
A: Yes, we won’t release your design to any third parties unless have your permission. And we can sign the NDA before you send the drawing.
Q: What is the MOQ?
A: We don’t set MOQ, but the price will be better for the larger quantity . Besides, we are happy to make prototype or sample for clients to ensure quality standard.
Q: Whether some samples can be provided?
A: Yes, just need some sample cost, we will return it back when proceed into mass production.
Q: How to deal with the parts received when they are found to be in poor quality?
A: Please rest assured that all our products are QC inspected and accepted with inspection report before delivery and generally there will no non-conformance: in case of non- conformance, please contact us immediately, take some pictures, we will check on the problems and have them reworked or repaired at the first time , the resulting transportation costs will be our side.

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