Totem CNC Machining High-Quality Heavy-Duty Straight Bevel Gear Set

• Customization: Available
• Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Agricultural Machinery, Car
• Hardness: Hardened Tooth Surface
• Model NO.: Large
• Gear Position: External Gear
• Manufacturing Method: Cast Gear
• Toothed Portion Shape: Spur Gear
• Material: Stainless Steel
• Type: Circular Gear
• Certificate: ISO
• Stiffness & Flexibility: Forging
• Gear Accuracy: Grade 5 to 6 After Grinding
• Gear Teeth: Grinding
• Tolerance: 0.01mm
• Heat Treatment: Quenchining
• Applications: Crusher
• Defect Control: Ut, Mt
• Standard or Nonstandard: Nonstandard
• Transport Package: Export Package (Wooden Box, Steel Frame etc. )
• Specification: 0.8-10M
• Trademark: TOTEM/OEM
• Origin: China
• HS Code: 8483409000
• Production Capacity: 100 T/Y
• Package Size: 70.00cm * 70.00cm * 60.00cm
• Package Gross Weight: 70.000kg

Product Description

Product Description

Totem CNC Machining High-Quality Heavy-Duty Straight Bevel Gear Set 

This series of straight bevel gears is precision-manufactured from high-quality alloy steel, specifically developed for mining machinery, construction equipment, and heavy-duty industrial applications. Featuring CNC-machined tooth profiles with high-precision accuracy for smooth meshing, these gears deliver exceptional load capacity, extreme durability, and extended service life.

Finished Product Image

Specification

Key Features

Premium Material Selection: Made from 42CrMo alloy steel, carburized and quenched (HRC 58-62), improving impact resistance by 40%.
Precision Machining: 5-axis CNC gear milling ensures tooth profile accuracy up to ISO Grade 8, guaranteeing perfect meshing with crusher main shafts.
Reinforced Design: Widened tooth root fillet radius (R≥0.3m), extending fatigue life beyond 10,000 hours.
Customization Service: Supports non-standard customization with module range 6-20mm and maximum outer diameter of 800mm.

Applications
1.Automotive:Differential gears in rear axles.
2.Aerospace:Main rotor gearbox in helicopters.
3.Industrial Machinery:Heavy-duty transmission systems in mining equipment.
4.Marine Engineering:Steering gear mechanisms.

Machinery Processing

Manufacturing Process

Blank Forging
Uses alloy steel forgings (e.g., 20CrMnTi) to ensure material density.
Gear Cutting
Machining tooth profiles using specialized spiral bevel gear milling machines (e.g., Gleason machine tools).
Heat Treatment
Carburizing and quenching (Case Hardening) to achieve tooth surface hardness of HRC 58-62.
Grinding
Precision grinding of tooth surfaces to achieve surface roughness Ra ≤ 0.8μm.
Inspection
Gear measurement center (Gear Tester) verifies pitch error (≤0.02mm).

Gear Cutting Process

Gear Grinding Process

1. Precise Tooth Profile Formation
To machine accurate tooth profiles (e.g., involute, cycloidal, or custom shapes) on gear blanks using processes like hobbing, shaping, or milling.
Key Requirements:Tooth profile error ≤ 0.02mm (for ISO Grade 5 or higher).
Helix angle accuracy to ensure proper load distribution.
2. Ensuring Meshing Performance
To achieve smooth, low-noise, and high-efficiency gear engagement.
Critical Controls:Pitch deviation: Affects transmission stability.
Surface roughness: Ra ≤ 1.6μm to minimize friction and wear.
3. Material Removal & Stock Allowance Control
To efficiently remove excess material while leaving appropriate allowance (typically 0.2–0.5mm) for heat treatment or finishing.

1. Enhancing Tooth Surface Accuracy
To eliminate heat treatment distortion through grinding, ensuring tooth profile and alignment meet ISO 1328 Grade 4-6 tolerances.
2. Optimizing Contact Pattern & Meshing Performance
To adjust tooth contact patterns via crowning/lead modification, preventing edge contact and stress concentration.
CNC-based ease-off topography correction (e.g., Gleason machine adjustments)
Ensure contact zone covers ≥60% of tooth height at mid-face width
3. Improving Surface Integrity
Achieve surface roughness Ra 0.4–0.8μm to reduce noise and wear.

Technical Specifications

We can manufacture different type of gears according to drawing.  

Material	Carbon Steel , Alloy Steel
Standard	ASTM DIN . EN GOST JIS ETC
Structure	Forging , Casting and Welding
Heat Treatment	Q & T Case Hardening
Gear tooth type	tooth taper
Max.workpiece diameter	2300 mm
Module range	10-45 mm
Pressure Angle	20°
Spiral angle range	0-50°
Tooth Hardness	HRC 58-62
OEM Service Offered	According to Customer Drawings
Segments Gear Offered	According to Customer Requests

Packaging & Shipping

Packaging Specifications

Material: Gear contact surfaces shall be coated with anti-rust oil and vacuum-sealed in anti-static bags.
Inner Packing: Each gear secured in custom foam molds, max 4 pieces per case. Fill with desiccants .
Outer Packing: ISPM 15-compliant plywood crates with metal strapping, marked with GW/NW .

Related product recommendations

Custom configurations available upon request.

We have different specifications of oil forging presses,ring rolling machines,electric arc furnaces,thus we can provide variety of forging,casting and welding materials according to customer's requests.
Large capacity, completed variety of quenching medium: oil,water,salt water,water based mixture.

Company Profile

SHANGHAI TOTEM MACHINERY CO., LTD.

Shanghai Totem Machinery Co., Ltd. (Totem Machinery), founded in 2010, is a leading high-tech enterprise integrating R&D, production, sales, and import-export trade, headquartered in Shanghai.
With 15 years of deep expertise in the machinery industry,Totem Machinery specializes in mechanical equipment, components, and bearings, excelling in providing professional solutions for the design, modification, production, and development of complex structural assemblies (e.g., bearing housing systems: ship supports, rolling mill supports; transmission systems: mining dragline applications, wind power generation, etc.). As an industry leader, our products serve a wide range of sectors, including metallurgy, chemical, shipbuilding, mining, cement, thermal power plants, agricultural machinery, and machine tool accessories.
The company boasts an experienced team of mechanical designers, production engineers, assembly technicians, and sales professionals, equipped with advanced manufacturing technology, precision processing equipment, and state-of-the-art inspection instruments. We have established a comprehensive product quality assurance system and after-sales service network. Upholding the principle of "Quality as the Foundation, Service as the Core, Integrity as the Soul,"Totem Machinery remains committed to innovation and strives to become a global benchmark in the machinery manufacturing industry.

In order to avoid the finish products rusted and damaged during the transportation ,we will design the right packing according to the shape,size and usage of the products.

Strictly quality inspection system can produce high quality products. For each order,we can provide report for material chemical components testing,UT testing, hardness, mechanical property testing(impact testing,yield strength testing,tensile strength testing),size inspection,etc.

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Professional Customization Services
Complate processing solution  
Perfect quality control system

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Gear Shaft
Gear Wheel
Flange Shaft
Girth Gear

FAQ

Q.What's TOTEM product processing progress?

A.Drawing CHECK, Make Forging Mold, Forging Mold Quality Inspection Check, Machine Processing, Check Size\Hardness\Surface Finish and other technical parameters on drawing. 
 
Q.How about TOTEM's export package?
A.Spray anti-rust oil on Herringbone Gear Shaft, Wrap waterproof cloth around Gear Shaft for reducer, Prepare package by shaft shape&weight to choose steel frame, steel support or wooden box etc.
 
Q.Could I customize gear\gear shaft on TOTEM?
A.We supply customized Gear Shaft,Eccentric Shaft,Herringbone Gear,Internal Gear,Bevel Gear with big module, more than 1tons big weight, more than 3m length, forging or casting 42CrMo/35CrMo or your specified required material. 
 
Q.Why can I choose TOTEM?
A.TOTEM has 24hrs Salesman on-line, guarantee quick and positive feedback.
TOTEM Machinery invests and becomes shareholders of several machine processing factories, forging factories, casting factories, relies on these strong reliable and high-quality supplier's network, to let customers worry-free purchase.
Experienced and Professional Forwarder Guarantee Log. transportation.