MachineU > China Products > Rubber & Plastics > Rubber Products > Other Rubber Products
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Specifications
Abrasion Resistance :
High
Type :
OMT R42-132
Application :
Insert to Metal Coupling
Color :
Black
Oil Resistance :
Good
Packing :
in cartons
Tensile Strength :
20Mpa
Chemical Resistance :
Excellent
Max Torque :
4 N.m
Durability :
High
Shape :
Coupling
Surface :
smooth
Hardness :
70-80 Shore A
Ozone Resistance :
Good
Standard Or Nonstandard :
Standard
Payment Terms :
L/C,D/P,T/T,Western Union
Material :
Rubber
Brand Name :
3A Rubber
Model Number :
3A2006
Certification :
ISO9001
Place of Origin :
China
MOQ :
10pieces
Price :
USD10.00
Supply Ability :
100000kgs/month
Delivery Time :
7-15days after receive the buyer's payment
Packaging Details :
Packing in bags and cartons
Uv Resistance :
Good
Description
Customizable Rubber Coupling for Coupling Spider in R82 OD78mm x ID31mm x T18mm in Black Color
OMT Rubber Coupling Spider, Rubber Spider, Coupling Spider in black color rubber material. Available in multiple sizes:
  • R42, OD42mm x ID19mm x T14mm
  • R62, OD59mm x ID29mm x T16mm
  • R82, OD78mm x ID31mm x T18mm
  • R103, OD99mm x ID42mm x T21mm
  • R132, OD132mm x ID64mm x T26mm
OTM Octagonal Coupling (Jaw Coupling / Plum Blossom Coupling)
Structural Features: Consists of two metal half-couplings with convex lobes (typically 8 lobes, forming an octagonal shape) and a central rubber elastomer (plum blossom pad).
Working Principle: Torque is transmitted through the rubber plum blossom pad between the lobes, utilizing rubber's elasticity to:
  • Absorb shock and vibration
  • Compensate for misalignment: Accommodates minor axial, radial, and angular offsets
  • Provide electrical insulation
Applications: Widely used in drive systems for pumps, fans, compressors, motors, gearboxes, etc.
Core Component: Rubber Cushion Block / Elastic Element / Plum Blossom Pad
Function: The core damping element, directly impacting coupling performance.
Names: Commonly called Plum Blossom Pad (due to its shape), Cushion Block, Elastic Element, or Cushion Ring.
Material: Typically Polyurethane (PU) or Nitrile Rubber (NBR):
  • Polyurethane (PU): Wear-resistant, tear-resistant, high load capacity (most common)
  • Nitrile Rubber (NBR): Excellent oil resistance (suitable for oily environments)
Model Identification: R42, R62, R82, R103, R132, etc., are specification models of the plum blossom pad. Numbers typically indicate the coupling size or bore diameter range (unit: mm) they are designed for.
Common Plum Blossom Pad Models & Specifications
Below are typical specifications for common models (Note: Standards may vary slightly between manufacturers. Always verify with physical measurements or the manufacturer's selection chart!):
Pad Model Typical Bore Dia. Range (mm) Suitable Coupling Size/Torque Range
R42 ≈ 20 - 30 Small couplings, low torque
R62 ≈ 25 - 40 Small-to-medium couplings
R82 ≈ 40 - 60 Medium couplings
R103 ≈ 50 - 75 Medium-to-large couplings
R132 ≈ 70 - 100+ Large couplings, high torque
Key Points for Purchase & Replacement
  1. Identify Original Model: Remove the old pad and check for stamped model (e.g., R42). Measure key dimensions: Outer Diameter (OD), Inner Diameter (ID), Thickness (H), Number of Lobes (usually 6 or 8).
  2. Match Coupling Specifications: The pad model MUST correspond to the coupling body model.
  3. Consider Operating Conditions: Ensure the pad can handle the load. Choose NBR for oily conditions; wear-resistant PU for general use. Confirm the rubber's temperature tolerance.
  4. Brand & Quality: OEM parts offer best compatibility. Reputable brands (e.g., R+W, KTR, Lovejoy, OTM) provide higher reliability.
Replacement Steps (Simplified)
  1. Shut down equipment and isolate power (safety first)
  2. Remove coupling guard
  3. Loosen coupling bolts
  4. Remove old pad and clean mating surfaces
  5. Insert new plum blossom pad into the lobes of one half-coupling
  6. Align the other half-coupling and gently push together
  7. Tighten bolts diagonally to the specified torque
  8. Reinstall guard
Summary
OTM octagonal couplings rely on plum blossom pads (e.g., R42/R62/R82/R103/R132) for cushioning. Precisely match the model and dimensions during replacement, considering operational needs. Source pads through official channels or contact OTM suppliers with parameters for procurement.
Please provide the dimensions of your old part or your equipment model for precise pad specification confirmation!
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Send your message to this supplier
Send Now

Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance

Ask Latest Price
Watch Video
Product Detail
Abrasion Resistance :
High
Type :
OMT R42-132
Application :
Insert to Metal Coupling
Color :
Black
Oil Resistance :
Good
Packing :
in cartons
Contact Supplier
video
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance
Customizable Rubber Coupling Spider with OD78mm x ID31mm x T18mm Dimensions for High Durability and Excellent Chemical Resistance

SANHE 3A RUBBER & PLASTIC CO., LTD.

Verified Supplier
12 Years
hebei
Since 2007
Business Type :
Distributor/Wholesaler, Agent, Importer, Exporter, Trading Company, Seller
Main Products :
Industrial Rubber Sheet, Silicone Rubber Sheet, High Temperature Rubber Sheet
Total Annual :
2000000-5000000
Employee Number :
800~1000
Certification Level :
Verified Supplier
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products Polyurethane Coupling
MachineU China Products Rubber & Plastics Rubber Products Other Rubber Products
Contact Supplier
Submit Requirement