The outer gear ring is an annular part with equally spaced teeth processed on its outer circumference.The axial distance between the outer gear and the outer gear ring should be maintained at 2.5-5 millimeters. In this way, when the main circuit is connected, the starter gear and flywheel ring gear have not yet engaged and have already rotated at high speed. When they come into contact, they will naturally make a noise due to collision, and the two cannot mesh, so the engine cannot start.
Range of external diameter: 100 mm to 70000 mm
Quenching and tempering materials:45 #, 35SiMn, 40Cr, 40CrNi, 40MnB
Quenched materials:20Cr, 20CrMnTi, 20MnB, 20CrMnTo
Quenching and tempering hardness: HB220-260
Quenching hardness: 48-55
Delivery type: 35-50 days
| Type | Parameters | modulus | ring gear teeth | pinion teeth | total transmission ratio | maximum torque | standard torque | maximum holding torque | radial rated static load | axial rated static load | radial rated dynamic load | radial rated dynamic load | weight (including 12KG of RE-300 hydraulic motor) | pressure difference | oil retention, output speed | output speed | maximum achievable torque |
| code | m | z2 | z1 | i | Md max | Md nom | Mh | Co rad | Co ax | C rad | C ax | △P | Q | n | Md | ||
| unit | [mm] | [-] | [-] | [-] | [Nm] | [Nm] | [Nm] | [kN] | [kN] | [kN] | [kN] | [kg] | [bar] | [I/min] | [min-1] | [Nm] | |
| SG-H-0455 | 8 | 72 | 15 | 4.80 | 26289 | 17209 | 26289 | 508 | 1360 | 236 | 275 | 190 | 195 | 38 | 3 | 26289 | |
| SG-H-0555 | 8 | 87 | 15 | 5.80 | 31036 | 20510 | 31036 | 619 | 1658 | 253 | 296 | 215 | 195 | 45 | 3 | 31036 | |
| SG-H-0655 | 8 | 99 | 15 | 6.60 | 35783 | 23795 | 35783 | 731 | 1957 | 269 | 314 | 245 | 195 | 52 | 3 | 35783 | |
| SG-H-0755 | 8 | 111 | 15 | 7.40 | 40165 | 26793 | 40165 | 843 | 2257 | 284 | 331 | 265 | 195 | 57 | 3 | 40165 | |
| SG-H-0855 | 8 | 123 | 15 | 8.20 | 44821 | 31111 | 44821 | 954 | 2556 | 299 | 349 | 295 | 195 | 64 | 3 | 44821 | |
| SG-H-0955 | 8 | 135 | 15 | 9.00 | 49293 | 34524 | 49293 | 1066 | 2855 | 311 | 363 | 320 | 195 | 70 | 3 | 49293 | |
| SG-H-1120 | 6 | 215 | 20 | 10.75 | 59000 | 39000 | 59000 | 1053 | 3700 | 355 | 413 | 2 | 59000 |
The outer gear teeth are precision-machined directly onto the ring body, allowing simultaneous load support and torque transmission.
Advantages to Customers:
Reduced component count
Simplified mechanical structure
Easier installation and alignment
Improved system reliability
The external gear design allows efficient engagement with drive pinions, making it ideal for high-torque applications.
Advantages to Customers:
Stable torque output
Smooth power transmission
Reduced vibration and mechanical stress
Suitable for large rotating platforms
Designed to withstand radial, axial, and overturning moment loads simultaneously.
Advantages to Customers:
Reliable operation under heavy loads
Stable rotation in demanding environments
Enhanced safety for large equipment
Advanced machining and grinding processes ensure accurate tooth profiles and controlled backlash.
Advantages to Customers:
Improved positioning accuracy
Reduced noise during operation
Smooth gear meshing
Higher transmission efficiency
Manufactured using high-grade alloy or bearing steel with optimized heat treatment processes.
Advantages to Customers:
High surface hardness
Excellent wear resistance
Long service life
Reduced maintenance intervals
We provide customized solutions based on:
Gear module and tooth profile
Diameter and structural configuration
Accuracy grade
Corrosion-resistant treatments
Load and torque requirements
Advantages to Customers:
Precise matching with project needs
Faster integration into equipment design
Enhanced product competitiveness
Our Outer Gear Ring ensures consistent rotation and improved reliability in bulk material handling systems.
For mining and steel production lines, our Outer Gear Ring enhances operational safety and reduces unplanned shutdown risks.
Our solution supports consistent product quality and stable production performance.
In pulp processing environments, our Outer Gear Ring ensures stable mechanical performance under moisture and chemical exposure conditions.
Across coal, mining, steel, paper, and pulp industries, our Outer Gear Ring provides:
For large rotating industrial systems, it is a critical component that directly influences operational reliability, maintenance cost, and production efficiency.
We support customers with customized specifications based on torque, diameter, load condition, and environmental requirements to ensure optimal integration into your equipment systems.
VKUKEN has over 30 years of experience in bearing design and manufacturing. We can customize non-standard bearings according to customer drawings, or we can measure and create drawings of existing bearings on-site and then manufacture custom bearings based on those drawings. Our team of professional engineers has over 20 years of experience in bearing design and measurement.
We have found that many people would like to learn about the application technology and selection of Bearing but do not have suitable materials to read. Our team of engineers constantly exports technology on our download page and blog, which you can download for free.
Hi, I am Maxwell, I am an engineer in the field of bearing applications. I majored in mechanical and electromechanical engineering during college. After graduation, I worked for the top three "SKF" bearing companies in the world for ten years , during which I went to dozens of customers in different industries to help them solve problems in bearing applications; later I joined VKUKEN Bearing Manufacturing, and I will share bearing technical knowledge on this website from time to time. If you are a customer Please contact me to help you solve your problem; if you are also a technical expert in bearings, I am very willing to exchange technical knowledge about bearings with you.
