Helical Bevel Gear

The helical bevel gear refers to the tooth line on the crown wheel of the production shape, which is a straight bevel gear that does not go through the bevel top.



The helical bevel gear refers to the tooth line on the crown wheel of the production shape, which is a straight bevel gear that does not go through the bevel top. The consecutive bevel gear pair has a relatively small number of teeth during transmission, prone to impact, unstable information, and loud noise. The bull gear and the pinion of a helical bevel gear pair have equal and opposite helix angles. The coincidence degree is greater than that of the spur bevel gear pair. Therefore, the noise and vibration are significantly reduced during high-speed operation, and the number of helical gear teeth of the helical bevel gear pair can be relatively reduced, thereby obtaining a larger transmission ratio and a compact structure;

In the unfolded surface drawing of the pitch bevel of the helical bevel gear, the pitch bevel gear line is tangent to a circle concentric with the pitch cone axis, so it is also called tangential bevel gear. Its advantages over straight gears are the same as the advantages of helical cylindrical gears over straight cylindrical gears: less impact load and more stable operation. However, due to the low productivity of this kind of gear, its performance is not as good as that of the spiral bevel gear, which can be mass-produced by a unique high-efficiency machine tool, so the latter gradually replaces it, and it is rarely used.


Model Number M3,M4,M5,M8,M12 and etc.
Material Brass, C45 steel, Stainless steel, Copper, POM, Aluminum, Alloy, and so on
Surface treatment Zinc-plated, Nickel plated, Passivation, Oxidation, Anodization,
Geomet, Dacromet, Black Oxide, Phosphatizing, Powder Coating, and Electrophoresis
Standard ISO, DIN, ANSI, JIS, BS, and Non-standard.
Precision DIN6,DIN7,DIN8,DIN9.
Teeth treatment Hardened, Milled, or Ground
Tolerance 0.001mm-0.01mm-0.1mm
Finish shot/sandblast, heat treatment, annealing, tempering, polishing, anodizing, zinc-plated
Items packing Plastic bag+Cartons Or Wooden Packing
Payment terms T/T, L/C
Production lead time 20  business days for sample,25 days for the bulk
Samples Sample price range from $2 to $100.
sample express request paid by clients
Application 1. Automatic controlling machine
2. Semi-conductor industry
3. General industry machinery
4. Medical equipment
5. Solar energy equipment
6. Machine tool
7. Parking system
8. High-speed rail and aviation transportation equipment, etc.

Testing Process

– QA DOC: chemical composition report, mechanical performance report, UT report, heat treatment report, dimensional inspection report.

– Chemical composition report and mechanical performance report.

– UT test: 100% ultrasonic test according to EN10228-3, SA388, etc.

– Heat treatment report: provide an original copy of the heat treatment curve/timetable.

Our Service

We will provide more accurate and efficient manufacturing and service according to customer drawings. We have a professional quality control team to ensure your products are better—inspection of raw materials before production, random inspection during processing, and 100% inspection before shipment.

Our Advantage

We have been engaged in CNC machine tools for more than ten years; CNC machining is very suitable for producing 1-10,000 parts; the wide range of available materials, low unit cost, and fast production speed make CNC the best choice for prototyping; as CNC machining service can be applied to any material and is therefore ideal for rapid processing; according to precise design specifications, choose from the variety of surface treatments on solid metal or plastic parts.