Torque Rod Manufacturer - Torque Arms & Torque Rod Bushings for Heavy-Duty Suspension
ARPL manufactures rubber-to-metal bonded torque rods, torque rod bushes, and V-stay arms for medium and heavy commercial vehicle suspension systems. Our torque rods keep axles centered, control driveline angles, absorb road shock, and prevent axle twist during acceleration and braking. Engineered for trucks, trailers, buses, and off-highway equipment. ISO 9001:2015 certified manufacturing at IMT Manesar, Haryana.
Product Range
Torque Rods & Torque Rod Bushes for Commercial Vehicles
Torque rods are suspension links that connect the axle to the vehicle chassis on medium and heavy commercial vehicles. They limit axle movement without restricting suspension articulation — keeping axles centered in the frame, controlling driveline angles during acceleration and braking, and preventing axle twist that causes dog-tracking and premature tire wear. A typical heavy truck uses 4 to 6 torque rods per axle, with rubber-bonded bushes at each end joint.
ARPL manufactures torque rod assemblies and torque rod bushes at IMT Manesar, Haryana. We serve commercial vehicle OEMs and Tier-1 suppliers across Delhi NCR, Pune, Chennai, Bengaluru, and export to global markets.
Torque Rod Specifications & Capabilities
ARPL designs torque rods and bushes to meet OEM pull-out strength, torsional stiffness, axial rate, radial rate, and fatigue life specifications. Every assembly is validated for dimensional accuracy, bush bond strength, and geometric alignment.
Key Performance Parameters
- Rubber compound: Natural Rubber (NR) — highest resilience, fatigue resistance, and dynamic load capacity for heavy-duty suspension. EPDM for weather-exposed locations. PU for extreme-duty mining and construction.
- Hardness: 50 to 75 Shore A — 50-60 Shore A for ride comfort on highway trucks; 65-75 Shore A for heavy-load and off-road applications
- Temperature range: -40°C to +100°C — engineered for all climatic and underbody operating conditions
- Bush configuration: Inner sleeve + rubber + outer sleeve — chemically bonded during vulcanization for permanent adhesion and consistent stiffness
- Stiffness: High torsional, rated axial and radial — engineered to control axle position while absorbing multi-directional road inputs
- Rod body: Forged steel or fabricated steel tube — designed for center distance, angular requirements, and end hub geometry per OEM specification
- Bond strength: "R" failure mode — rubber tears before bond fails, validated by destructive pull-out testing per production lot
Torque Rod Configurations
- Longitudinal torque rods — run forward and aft between axle and chassis. Control axle movement during acceleration and braking. Manage driveline angles on drive axles. Most common configuration on trucks.
- Transverse torque rods (lateral rods) — run side to side between axle and chassis. Keep the axle centered laterally in the frame. Prevent lateral shift during cornering and on cambered roads.
- V-stay arms — triangular two-point link connecting axle to a single chassis bracket. Provide both longitudinal and lateral axle control in a compact design. Common on bogie suspensions.
- Radius rods — long single-point links used on air suspension systems to control axle position and articulation. Require high fatigue life due to continuous dynamic loading.
Compound Comparison for Torque Rod Bushes
| Compound | Temp. Range | Fatigue Life | Load Capacity | Stiffness | Best For |
|---|---|---|---|---|---|
| NR | -40 to +80°C | Excellent | High | Medium | Highway trucks, trailers, buses (standard, most common) |
| EPDM | -50 to +150°C | Good | Medium | Medium | Weather-exposed and high-temp locations |
| PU | -30 to +80°C | Good | Very High | High | Mining trucks, tippers, severe-duty off-road |
Torque Rod Applications
ARPL torque rods and bushes serve suspension systems across the full range of medium and heavy commercial vehicles, trailers, and off-highway equipment.
Trucks & Heavy Commercial Vehicles
Longitudinal and transverse torque rods for drive axle and steer axle suspensions on medium and heavy-duty trucks. Control axle position, manage driveline angles, absorb braking torque, and prevent dog-tracking across fully loaded and empty running conditions.
Trailers & Semi-Trailers
Torque rods and V-stay arms for trailer bogie suspensions. Keep axles centered and aligned to prevent dog-tracking and uneven tire wear across tandem and tridem axle configurations. Designed for high-mileage durability on highway and regional transport.
Buses & Coaches
Torque rods for city bus, intercity coach, and school bus suspensions. Tuned for passenger comfort with lower stiffness bushes that isolate road vibration while maintaining safe axle positioning under braking and cornering loads.
Mining, Construction & Off-Highway
Heavy-duty torque rods with PU or high-durometer NR bushes for tippers, dumpers, mining trucks, and construction equipment. Engineered for extreme loads, harsh terrain, and continuous shock absorption on unpaved surfaces.
Global Export Markets
ARPL exports torque rods and torque rod bushes from Manesar, Haryana to commercial vehicle OEMs and aftermarket distributors in the USA, Germany, UK, France, Italy, Japan, South Korea, Taiwan, UAE, Saudi Arabia, Turkey, Canada, Mexico, and Sweden.
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Frequently Asked Questions
Find answers to common questions about torque rods
A torque rod is a suspension link used in medium and heavy commercial vehicles to connect the axle to the chassis. It limits axle movement during acceleration, braking, and cornering while allowing controlled suspension articulation. Torque rods keep axles centered in the frame, control driveline angles on drive axles, and prevent dog-tracking and premature tire wear on trailers.
ARPL manufactures longitudinal torque rods, transverse torque rods, V-stay arms, radius rods, and torque rod bushes at our ISO 9001:2015 certified facility in IMT Manesar, Gurugram, Haryana. We supply complete assemblies with bonded rubber bushes for trucks, trailers, buses, and off-highway vehicles.
A torque rod bush is a rubber-to-metal bonded cylindrical component pressed into the end hubs of a torque rod. It consists of an inner metal sleeve, rubber element, and outer metal sleeve bonded together during vulcanization. The bush provides cushioning at the rod joints, absorbing vibration and shock while maintaining the torsional stiffness needed for precise axle alignment.
Longitudinal torque rods run forward and aft between the axle and chassis, controlling axle movement during acceleration and braking and managing driveline angles on drive axles. Transverse torque rods run side to side, keeping the axle centered laterally in the frame and preventing lateral shift during cornering. Most heavy trucks use both types for complete axle control.
Natural Rubber (NR) is the standard compound for torque rod bushes due to its excellent fatigue resistance, high resilience, and ability to withstand the continuous dynamic loading in commercial vehicle suspensions. Polyurethane (PU) is used for severe-duty mining and construction applications where higher stiffness and abrasion resistance are required.
A typical heavy truck uses 4 to 6 torque rods per axle — usually two upper longitudinal rods, two lower longitudinal rods, and one transverse rod for lateral control. Tandem and tridem axle trucks and trailers have proportionally more, with a total of 10 to 18 torque rods across all axles.
Please share: torque rod type (longitudinal, transverse, V-stay, radius rod), center distance, bush inner and outer diameter, rubber compound and hardness, end hub geometry, vehicle platform or OEM part number, drawing or sample if available, and annual volume estimate.
Yes. ARPL exports torque rods and torque rod bushes from Manesar, Haryana to commercial vehicle OEMs and aftermarket distributors in USA, Germany, UK, France, Italy, Japan, South Korea, Taiwan, UAE, Saudi Arabia, Turkey, Canada, Mexico, Sweden, and Netherlands.