Rubber Coupling

Understanding Rubber Couplings

Rubber couplings, also known as elastomeric couplings, transmit torque through a flexible element made of rubber or polyurethane. This element isolates vibration, absorbs shock, and allows for misalignment between shafts. Different designs cater to specific application needs.

Common Types Offered:

• Tyre Couplings: Feature a highly flexible, tyre-shaped rubber element bolted between flanges. Excellent for high misalignment (angular, parallel, axial) and superb vibration/shock damping. Easy element replacement without disturbing hubs. Often referred to as tyre-coupling.
• Jaw Couplings (Spider Couplings): Consist of two hubs with interlocking jaws separated by an elastomeric spider (element). Simple, cost-effective, and offer good damping. They are generally 'fail-safe' (hubs interlock if spider fails). Often called spider-coupling or lovejoy coupling type.
• HRC Couplings: A type of Jaw coupling with a specific design featuring a star-shaped rubber element fitting between cast iron hubs. Offers good torque capacity, reasonable misalignment, and damping for general-purpose applications. Known for easy installation (taper bush option).

Key Advantages:

• Vibration & Shock Damping: The elastomeric element effectively absorbs torsional vibrations and shock loads.
• Misalignment Compensation: Accommodates angular, parallel, and axial misalignment (capability varies by type).
• Electrical Isolation: The rubber/PU element prevents the flow of electrical current between shafts (check specific type).
• Low Maintenance: Typically require no lubrication; maintenance involves periodic inspection and element replacement when worn.
• Cost-Effective: Generally offer a lower initial cost compared to all-metal couplings.

Shreeji Gears: Your Ahmedabad Rubber Coupling Provider

We provide a comprehensive range of rubber couplings, ensuring you find the right fit for your general industrial power transmission needs.

Why Choose Shreeji Gears for Rubber Couplings?

• Wide Product Selection: Manufacturing and supplying Tyre Couplings, Jaw Couplings (with various spider materials like NBR, PU), and HRC Couplings.
• Quality Materials: Utilizing durable elastomers (Natural Rubber, Neoprene, PU) and high-grade Cast Iron or SG Iron for hubs and flanges.
• Precision Machining: Ensuring accurate bore sizes, keyways, and fits for reliable performance. Taper bush options available for HRC and some Jaw couplings.
• Interchangeability: Many of our couplings (like HRC, Jaw types) are dimensionally interchangeable with other major brands.
• Custom Solutions: Ability to provide couplings with specific bore sizes, keyways (metric/imperial), and balancing for higher speeds if required.
• Application Support: Assisting customers in selecting the most suitable rubber coupling type (Tyre, Jaw, HRC) based on torque, speed, misalignment, and environmental factors.
• Stock Availability: Maintaining stock of common sizes and spare elements for quick delivery.

General Technical Specifications (Varies by Type):

• Types Available: Tyre, Jaw/Spider (various spider types), HRC.
• Element Material: Natural Rubber, Neoprene, Nitrile (NBR), Polyurethane (PU).
• Hub/Flange Material: Cast Iron (GG20/GG25), SG Iron, Steel, Aluminium.
• Bore Range: Extensive range covering small to large shaft sizes (e.g., 10mm to 250mm+). Taper Lock Bush options common.
• Torque Rating: Wide range depending on coupling type and size.
• Max Speed: Generally suitable for low to moderate speeds (Tyre couplings typically have lower speed limits than Jaw/HRC).
• Misalignment: Good to Excellent (Tyre > Jaw/HRC for parallel/angular).
• Temperature Range: Typically -20°C to +80°C (depends on elastomer material).

Effectively dampen vibration and accommodate misalignment in your machinery. Select Shreeji Gears, your versatile rubber coupling manufacturer in Ahmedabad offering Tyre, Jaw, and HRC types. Contact us today for a quote or technical assistance!