Girth Gear
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Girth Gear
R.P Alloys offers a variety of options for multi-segmented gears and is the ideal destination to procure girth gears for AG, SAG, ball mill, and crushing applications. Engineered in segments of various limits, we manufacture girth gears up to 10 meters in diameter. With interchangeable segments for easy repair and maintenance, our girth gears have delivered long standing, reliable operation for decades.
Girth gears are used in various mining, manufacturing, and processing applications.
CORE FEATURES
- Flange / Tangent Plate Mounting
- T & Y Section Gears
- High Reliability and Accurate Tooth Geometry
- Spur and Helical Designs
- Easy and Cost-Effective Replacement of Individual Segments
- Machined to Exacting Tolerances, up to AGMA10 Or IS07 for Certain Applications
Summary
- High-precision, segmented girth gears for heavy-duty mills, kilns and rotary machines.
- Cast, machined and assembled entirely in-house by R.P. Alloys.
- Manufactured up to 10 metres in diameter, in multiple segments, with module up to 60M.
- Machined to tooth quality DIN 3962 Q8 for high reliability and accurate tooth geometry.
- Trusted by cement, mining, metals processing and power generation customers.
Why Girth Gear?
A large mill or rotary kiln rim needs a gear that can rotate under enormous load and tight tolerances — a standard gear simply won’t hold up. R.P. Alloys engineers girth gears specifically for this duty. Because we control every step ourselves, from pattern and casting through heat treatment, machining and assembly, the gear you receive is built to run for thousands of hours in cement, mining, metals, power and other heavy-use industries.Industries we cater to:
Specifications
| Specification | Detail |
|---|---|
| Outside Diameter | Up to 10 metres |
| Module | Up to 60M |
| Tooth Quality | DIN 3962 Q8 |
| Segment Fabrication | Multi-segment rings for easier transport and installation |
| Mounting | Flange/tangent-plate mounting; T & Y section gears; spur and helical designs |
FAQ
A large ring gear fitted to the outer shell of equipment such as mills, kilns or dryers, meshed with a pinion to transmit torque and drive rotation.
Up to 10 metres in diameter, engineered in segments as required.
Rings cast in manageable segments that are easier to transport and install, and which bolt together on site to act as a single ring — helping with logistics and cost.
Cast or forged alloy steel, machined to tooth quality DIN 3962 Q8, with designs including flange/tangent-plate mounting and both spur and helical configurations.
Mill type, shell diameter, drive type, gear module or tooth count if known, torque/load data, environment (dust, abrasion, temperature) and drawings if available. More detail lets us tailor the solution more precisely.