Helical Bevel Gearboxes Apply In Plastic Machinery
Helical Bevel Gearboxes Apply In Plastic Machinery
Helical bevel gearboxes are widely used in plastic machinery due to their high modular design, stable transmission, low noise, good sealing, high efficiency and power saving, cost-saving, and low maintenance. These gearboxes can apply to various industries such as ports and shipping, lifting and transporting, electricity, coal mining, cement and construction, paper and light industry, chemical, and environmental protection, among others.
Helical bevel gearboxes are classified based on their size, which is determined by the solid or hollow shaft diameter, center height, output flange diameter, power, ratio, permissible torque, and weight. The gear materials are made of 20CrMnTi alloy steel, while the housing materials are cast iron or ductile iron with a hardness of HBS190-240. The gear's surface hardness ranges from HRC58?? to 62??, while the gear core hardness varies from HRC33-40. The gearbox's machining precision is accurate grinding with a 6-5 grade, and the efficiency can reach 94-96% depending on the transmission stage.
Helical bevel gearboxes are easy to install, maintain, repair, and replace. The gearbox is equipped with lubricating oil, and the heat treatment process involves tempering, cementing, quenching, among others. The permissible torque ranges from 200 to 50,000 N.m, and the weight ranges from 11 to 1700 kgs.
Advantages of Helical Bevel Gearboxes:
- High modular design
- High load support, stable transmission, and low noise
- Good sealing, wide range of applications
- High efficiency and power saving
- Cost-saving and low maintenance
Main Applications of Helical Bevel Gearboxes:
- Ports and Shipping
- Lifting and Transporting
- Electricity
- Coal Mining
- Cement and Construction
- Paper and Light Industry
- Chemical and Environmental Protection
Technical Data:
| Cast iron/Ductile iron | |
Housing hardness | HBS190-240 | |
Gear material | 20CrMnTi alloy steel | |
Surface hardness of gears | HRC58??~62 ?? | |
Gear core hardness | HRC33~40 | |
Input / Output shaft material | 42CrMo alloy steel | |
Input / Output shaft hardness | HRC25~30 | |
Machining precision of gears | Accurate grinding, 6~5 Grade | |
Lubricating oil | GB L-CKC220-460, Shell Omala220-460 | |
Heat treatment | Tempering, cementiting, quenching, etc. | |
Efficiency | 94%~96% (depends on the transmission stage) | |
Noise (MAX) | 60~68dB | |
Temp. Rise (MAX) | 40??C | |
Temp. Rise (Oil)(MAX) | 50??C | |
Vibration | ??20?m | |
Backlash | ??20Arcmin |
Size | Solid Shaft Dia. (mm) | Hollow Shaft Dia. (mm) | Center Height (mm) | Output Flange Dia. (mm) | Power (kw) | Ratio | Permissible Torque (n.m) | Weight (kgs) |
37 | ??25k6 | ??30h7 | 100 | ??110/160 | 0.18-3.0 | 5.36-106.38 | 200 | 11 |
47 | ??30k6 | ??35h7 | 112 | ??120/200 | 0.18-3.0 | 5.81-131.87 | 400 | 20 |
57 | ??35k6 | ??40h7 | 132 | ??155/250 | 0.18-5.5 | 6.57-145.14 | 600 | 27 |
67 | ??40k6 | ??40h7 | 140 | ??155/250 | 0.18-5.5 | 7.14-144.79 | 820 | 33 |
77 | ??50k6 | ??50h7 | 180 | ??170/300 | 0.37-11.0 | 7.24-292.18 | 1550 | 57 |
87 | ??60m6 | ??60h7 | 212 | ??215/350 | 0.75-22.0 | 7.19-197.18 | 2700 | 85 |
97 | ??70m6 | ??70h7 | 265 | ??260/450 | 1.1-30.0 | 8.95-176.05 | 4300 | 130 |
107 | ??90m6 | ??90h7 | 315 | ??304/450 | 3.0-45.0 | 8.74-141.46 | 8000 | 250 |
127 | ??110m6 | ??100h7 | 375 | ??350/550 | 7.5-90.0 | 8.68-146.07 | 13000 | 380 |
157 | ??120m6 | ??120m6 | 450 | ??400/660 | 11.0-160.0 | 12.65-150.41 | 18000 | 610 |
167 | ??160m6 | ??160m6 | 500 | ??800 | 11.0-200.0 | 17.28-163.91 | 32000 | 1015 |
187 | ??190m6 | ??190m6 | 600 | ??800 | 18.5-200.0 | 17.27-180.78 | 50000 | 1700 |
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Other Products Business
We mainly supply various Plastic Gear used in industry, such as agricultural gearboxes, power output shafts, sprockets, fluid couplings, worm gear reducers, gears and racks, detachable chains, pulleys and pulleys, planetary gearboxes, timing pulleys, bushings, and more. Our high-quality products, favorable prices, and considerate services have gained high recognition and evaluation from our customers worldwide. We welcome customers to come to the drawing or sample customization.
Q&A
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A large portion of our products is exported to Europe and the Americas, with both standard and custom options available. We can manufacture according to your drawings or samples, using standard materials or as per your specific requirements. Choosing us means choosing reliability.

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
Port: Shanghai/Ningbo port

Industries We Service
