Balance Rod Bush (Marcopolo / 1109)
Precision-moulded natural rubber balance bush engineered specifically for Marcopolo and 1109 chassis platforms. Offers superior torsional elasticity and high damping performance on unpaved roads.
Precision Moulded Suspension Components
Heavy-Duty Balance Rod Bushes & PU Suspension Bushings
Manufactured by Amit Rubber Products in New Delhi, India. Engineered for severe axle oscillation, anti-roll stability, and long-lasting fatigue resistance across heavy trucks, trailers, and public transport buses.
Heavy-Duty Balance Rod Bush (Marcopolo 1109)
Reinforced dual-sleeve design built to withstand extreme dynamic shear forces in high-mileage transit bus fleets. Prevents early rubber fatigue and reduces axle misalignment.
Balance Rod Bush Set (Tata Prima)
Complete suspension balance rod bush set engineered for high-tonnage Tata Prima heavy haulers and multi-axle tippers. Delivers exact geometric tolerance and high load endurance.
Balance Rod Cut Bush (Leyland BS-III)
Slotted balance rod cut bush for rapid bench or field assembly in Leyland BS-III chassis. Features formulated groove relief to minimize stress concentration under cyclic suspension loads.
Polyurethane (PU) Cut Bush Set (2416 / 709)
High-modulus thermoset polyurethane suspension bush kit engineered for Tata 2416 and 709 platforms. Immune to oil, grease, road chemicals, and extreme mechanical abrasion.
40mm Yellow Polyurethane Bush
Universal 40mm inner core high-load yellow polyurethane bush for custom suspension torque rods, leaf spring pivots, and trailer balance linkages. Unmatched load deflection stability.
Engineering Excellence & Material Formulations
At Amit Rubber Products, every balance rod bush is manufactured strictly adhering to commercial vehicle OEM standards. In heavy road freight, the balance rod (also referred to as a torque rod or radius arm) maintains correct axle tracking, counteracts severe brake torque, and stabilizes lateral displacement while negotiating turns.
Our Delhi manufacturing plant utilizes computer-controlled compounding, injection press moulding, and precision chemical surface treatments to ensure metal-to-elastomer vulcanization exceeds commercial pull-off shear specifications.
Virgin Rubber Polymers Seamless Hydraulic Steel Bushings Hot Chemical Chemlok® Bonding Automated Durometer Testing Custom Shore Hardness Tuning Anti-Aging Ozone Protection
Technical Specifications Matrix
The following engineering parameters outline our standard production envelope for commercial vehicle suspension bushings:
| Technical Parameter | Natural Rubber (NR) Bush | Cast Polyurethane (PU) Bush | Test Standard |
|---|---|---|---|
| Durometer Hardness | 65 – 75 Shore A | 80 – 92 Shore A | ASTM D2240 |
| Tensile Strength | 16 – 22 MPa | 32 – 45 MPa | ASTM D412 |
| Elongation at Break | 450% – 580% | 400% – 520% | ASTM D412 |
| Bonding Strength (Rubber to Steel) | ≥ 12.0 N/mm (Cohesive Failure) | ≥ 14.5 N/mm (Substrate Lock) | ASTM D429 Method B |
| Operating Temperature Range | -40°C to +85°C | -35°C to +95°C | Standard Thermal Cycle |
| Resistance to Mineral Oils & Grease | Moderate (Protective Coating) | Exceptional (Chemically Inert) | ASTM D471 |
Commercial Vehicle Application & Fleet Compatibility
Our balance rod bush product range serves leading heavy commercial vehicles, commercial buses, industrial trailers, and prime movers globally. We manufacture replacement components compatible with major fleet marques:
| Vehicle / Chassis Model | Typical Bush Application | Available Material | Key Fleet Benefit |
|---|---|---|---|
| Marcopolo • Tata 1109 Buses | Front & Rear Balance Rods | Natural Rubber / Reinforced NR | Maximum passenger comfort & road vibration damping |
| Tata Prima • Signa Heavy Tippers | Bogie Suspension & Radius Arms | High-Density Rubber / Elastomer Set | Resists multi-directional shear under 30+ ton payloads |
| Ashok Leyland BS-III / BS-IV Series | Rear Axle Balance / Torque Rod | Slotted Split Rubber / PU | Fast depot replacement, zero suspension binding |
| Tata 2416 • 709 Multi-Axle Trucks | Axle Stabilizer Linkage | High-Grade Polyurethane (PU) | Zero deterioration from diesel oil and grease accumulation |
| Heavy Trailers • Semi-Trailer Dollies | York-Style Balance Rockers | Custom 40mm-65mm PU / NR | Long-haul fatigue resistance across cross-border routes |
Quality Assurance & Export Verification Standards
Every shipment bound for overseas markets undergoes comprehensive in-house laboratory evaluation before container packing and release:
- Dimensional Verification100% optical coordinate checking against engineering blueprints for concentricity, inner bore clearance, and outer jacket press-fit tolerances.
- Vulcanization Bonding TestDestructive peel testing on random batch samples ensuring cohesive rubber failure rather than adhesive separation at the steel-rubber interface.
- Axial & Radial Torsional RigidityHydraulic cyclic deflection testing measuring dynamic stiffness and restorative elasticity under simulated severe road shocks.
- Export Protective PackagingHeavy-duty sealed VCI anti-corrosion barrier bags, reinforced 5-ply corrugated Master shipping cartons, strapped and shrink-wrapped onto fumigated sea-freight pallets.