3J-11J Size Range Gear Rubber Coupling with 80-98 Shore A Hardness and 12-55Mpa Tensile Strength for Screw Air Compressor

Place of Origin China
Brand Name 3A Rubber
Certification ROHS/FCC/SGS
Model Number 3A2006
Minimum Order Quantity 10pieces
Price negotiation
Packaging Details Packed in cartons
Delivery Time 10 working days after received your payment
Payment Terms T/T,L/C,Paypal,Western Union
Supply Ability 10000kgs per month

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Product Details
Material NBR, CSM/SBR, Polyurethane Color Black, Red
Tensile Strength 12-55Mpa Hardness 80-98shore A
Elongation 350% Density 1.25g/cm3
Size 3J, 4J, 5J, 6J, 7J, 8J, 9J, 10J, 11J
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Product Description
3J - 11J Gear Rubber Coupling, Polyurethane Coupling for Screw Air Compressor
Product Description

High-performance 3J - 14J gear rubber coupling designed specifically for screw air compressors, featuring polyurethane construction for durability and flexibility.

Technical Specifications
Item 14J 13J 11J 10J 9J 8J 7J 6J 5J 4J 3J
OD (mm) 333 284 208 179.4 152 128.6 110.4 95.3 74.6 58.7 48
ID (mm) 193 165 122.3 102 87 75 64.5 54.6 44 34 26.5
Thickness (mm) 165 138 101.6 87.3 76.2 63.5 55.6 47.6 39.7 31.8 25.5
Gear Qty (Piece) 24 24 24 24 24 24 24 20 20 18 18
Weight (g) 7550 6000 1750 1210 700 407 262 171 81 40 20
3J-11J Size Range Gear Rubber Coupling with 80-98 Shore A Hardness and 12-55Mpa Tensile Strength for Screw Air Compressor 0
Key Features
  • Specifically designed for air compressors
  • Manufactured on serious production lines for consistent quality
  • Premium quality materials at competitive prices
  • Custom packaging options available
  • OEM services provided with A&V quality checks
Design Advantages

The claw-type surface-to-surface design provides effective vibration damping and shock absorption, reducing wear during operation. The circumferential offset of claw-type teeth with quincunx elastic body arrangement compensates for installation deviations while avoiding stress concentration.

Compared to traditional column pin couplings, our design offers superior load capacity, better wear resistance, and longer service life. Suitable for both horizontal and vertical installations.

Product Characteristics
  • Simple, stable design for reliable operation
  • Three-component structure for easy installation and maintenance
  • Multiple material options for hubs and elastic bodies
  • Involute arc elasticity design for higher torque transmission
  • Elastic body protuberance pads prevent metal-to-metal contact
Material Specifications
Material: Polyester, CSM/SBR
Color: Yellow, red, purple, green, black
Surface: Smooth
Tensile Strength: 12-55Mpa
Hardness: 80-98 Shore A
Elongation: 400%-650%
Density: 1.25g/cm³
Elasticity Impact: >25%
Tear Strength: 35-155KN/m
Akron Abrasion Loss: <0.05cm³/1.61km
Compression Set: <10% (22h*70°C)
Working Temperature: Up to 120°C
Available Sizes

Standard sizes: Gear 3J, 4J, 5J, 6J, 7J, 8J, 9J, 10J, 11J

Custom sizes available according to buyer's specifications and drawings.

3J-11J Size Range Gear Rubber Coupling with 80-98 Shore A Hardness and 12-55Mpa Tensile Strength for Screw Air Compressor 1
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