Worm Reducer-Replacement of Fenner Series C Helical Worm Gearbox Shaft Mounted Reducer-with Torque Arm Double/Triple Reduction 870
Introduction
The Worm Reducer-Replacement of Fenner Series C Helical Worm Gearbox Shaft Mounted Reducer is a high-quality and cost-effective gearbox solution. This gearbox is designed to provide efficient and energy-saving power transmission, with multiple installation options and a wide range of available gear ratios from 8:1 to 16,000:1. It can be seamlessly integrated with standard IEC motors without any modifications. The modern design technology and high-quality components make the C series helical worm gearboxes superior to any other gearbox in terms of cost efficiency. Our company offers Fenner brand replacement helical worm gearboxes, which are of excellent quality and competitively priced. However, please note that our products are replacement parts and not original equipment. If you require original equipment, please contact the original supplier for purchase.

Features
- Wide range of gear ratios from 8:1 to 16,000:1
- High torque capacity, up to 10,000Nm
- Available in 8 different sizes
- Highest-quality helical gear transmission for energy efficiency and reduced operating costs
- Interchangeable with dimensions of leading manufacturers
- Innovative motor adapter with standard IEC interface
- Oil-tight seal prevents oil leakage during motor disassembly
- Multiple mounting options: base, flange, or shaft

Structure
The Worm Reducer-Replacement of Fenner Series C Helical Worm Gearbox Shaft Mounted Reducer consists of the following parts:
- Input shaft
- Helical gears
- Worm shaft
- Worm wheel
- Output shaft

Applications
- Conveyors
- Mixers
- Agricultural machinery
- Food processing equipment
- Packaging machinery
- Industrial automation systems
- Solar power systems

Installation
The performance of the gearbox depends on correct installation, lubrication, and maintenance. Please follow the instructions below for different mounting methods:
Shaft Mounting
Ensure that the shaft and gearbox unit holes are clean and free of burrs. Apply a sufficient amount of lubricating oil to the shaft and holes to aid assembly and prevent friction corrosion. Slide the unit onto the drive shaft and secure with a key.
Foot Mounting
Mount the equipment securely on a sturdy structure. Install output shaft extension as required. Use flexible couplings for connection between shafts and ensure that the shaft misalignment is within the coupling's tolerance. When installing pulleys or sprockets on two shafts, place them as close to the gearbox as possible. Do not strike the shafts when installing or removing transmission components, as this can damage the bearings.
Lubrication and Maintenance
Proper lubrication and maintenance are essential for the performance of the Worm Reducer-Replacement of Fenner Series C Helical Worm Gearbox Shaft Mounted Reducer. The following guidelines should be followed:
Oil Change
| Gearbox Size | Oil Change Interval |
|---|---|
| 870 and 871 | Lifetime lubrication, except for explosive environments |
| All other sizes | Replace oil according to operating temperature of the equipment |
For new gearboxes, replace half of the oil after 1000 hours of operation or one year, whichever comes first, and then replace oil as recommended for the specific lifespan of the equipment.

Common Issues and Solutions
| Issue | Cause | Solution |
|---|---|---|
| 1. Gearbox overheating | Insufficient lubrication, excessive load | Check lubrication levels and quality, reduce load if necessary |
| 2. Abnormal noise | Worn gears, misalignment | Inspect and replace worn gears, realign components |
| 3. Leakage of oil | Damaged seals, loose fasteners | Replace seals, tighten fasteners |
| 4. Excessive vibration | Imbalanced gears, misalignment | Balance gears, realign components |
| 5. Inadequate torque output | Worn gears, insufficient lubrication | Inspect and replace worn gears, check lubrication levels |
| 6. Gearbox not engaging | Faulty clutch or coupling | Inspect and replace faulty components |
| 7. Excessive backlash | Worn gears, misalignment | Inspect and replace worn gears, realign components |
| 8. Gearbox seizing | Insufficient lubrication, excessive load | Check lubrication levels and quality, reduce load if necessary |
| 9. Abnormal vibration | Imbalanced gears, misalignment | Balance gears, realign components |
| 10. Excessive noise | Worn gears | Inspect and replace worn gears |
Fenner Helical Worm Gear
Additional information
| Edited by | Zqq |
|---|
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





