Replacement of Fairfield CR31A2 Roller Drive Planetary Gearbox
Introduction to Roller Drive Planetary Gearbox
Roller Drive Planetary Gearbox is a type of gearbox that consists of one or more outer gears, also known as planet gears, revolving around a centralized sun gear. It is commonly used in various applications such as cranes, excavators, and conveyors. The gearbox is designed to convert input torque and speed into output torque and speed with high efficiency and accuracy. It has a compact structure, high load capacity, and low noise level, making it an ideal choice for heavy-duty machinery.
Replacement of Fairfield CR31A2 Roller Drive Planetary Gearbox
At our company, we offer a wide range of gearbox solutions that are similar to the Fairfield brand. Our gearboxes come in various sizes, installation methods, and technical specifications that are comparable to Fairfield's products. We can provide a perfect replacement for Fairfield's CR31A2 Roller Drive Planetary Gearbox, offering customizable services to meet your specific needs.
Our standard torque hub drives can provide maximum output torque ratings from 12000 in-lbs to 4000000 in-lbs, with speed ratios ranging from 3:1 to 1100:1+. It's important to note that we do not sell Fairfield branded products, and our reference to the brand is only for the convenience of selecting a suitable product replacement.

Advantages of Our Gearbox Products
- High Efficiency: Our gearboxes have a high transmission efficiency, up to 98%. They can reduce power loss and save energy.
- Compact Design: Our gearboxes have a compact structure that can save space and reduce weight, making them easy to install and maintain.
- Low Noise: Our gearboxes produce low noise levels, making them ideal for indoor use and other noise-sensitive environments.
- High Load Capacity: Our gearboxes have a high load capacity, ensuring smooth and reliable operation even under heavy loads.
- Customizable: Our gearboxes can be customized to meet your specific needs, such as special sizes, materials, and colors.

Applications of Roller Drive Planetary Gearbox
Our gearboxes can be used in a wide range of applications, such as:
- Crane and hoist systems
- Excavators and construction machinery
- Conveyors and material handling equipment
- Marine and offshore equipment
- Wind turbines and solar tracking systems
Product Selection Guide
When selecting a gearbox, it's important to consider the following parameters:
| Parameter | Description |
|---|---|
| Maximum Output Torque | The maximum output torque the gearbox can provide under normal operating conditions. |
| Speed Ratio | The ratio between the input speed and output speed of the gearbox. |
| Efficiency | The percentage of input power that is transferred to the output power of the gearbox. |
| Mounting Method | The way the gearbox is mounted, such as flange, foot, or shaft mounting. |
| Shaft Diameter | The diameter of the shaft that connects the gearbox to the driven equipment. |
Lubrication and Maintenance Guidelines
To ensure the proper functioning and longevity of your gearbox, it's essential to follow these guidelines:
- Use the recommended lubricant and fill the gearbox to the proper level.
- Check the oil level and quality regularly, and replace the oil when necessary.
- Inspect the gearbox for any signs of wear or damage, such as overheating, noise, or leaks.
- Clean the gearbox and surrounding area regularly to prevent contamination from dust, dirt, or moisture.
- Follow the manufacturer's instructions for any repairs or replacements.
Author: Miya
Product Quick Detail:
- Standard and non-standard available
- With high quality and competitive price
- Prompt delivery
- Packing as per customer’s demand.
We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.
Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

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

