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PU Flexible Coupling Spider 40H PU Coupling Element For Heavy‑Duty Construction & Heavy Machinery

Place of Origin TAIWAN
Brand Name Pro-one
Model Number :25H, 30H, 35H, 40H, 45H, 50H, 90H, 110H, 140H, 160H, 240H 4A, 4AS, 8A, 8AS, 16A, 16AS, 22A, 22AS, 25A, 25AS, 28A, 28AS, 30A, 30AS, 50A,50AC, 50AS, 80A, 80AS, 90A, 90AS, 140A, 140AS
Minimum Order Quantity 2 SET
Price Negotiation
Packaging Details Origin Country Of Factory Packaging
Delivery Time 1 Day For Stocks, 15-30 Days For Large order After Payment
Payment Terms Western Union,Cash,Bank,PayPal.HSBC,CITY BANK.
Supply Ability 30000 SET /MONTH
Product Details
Material PU Appliion Excavator & Mechanical Rotary Drilling
Part Name Coupling Brand Name Pro-one
Model HITACHI EX200-2 EX200-3 EX200-5 Part Number 40H PU Rubber Coupling Spider
Delivery Time 1-2 Days For Stocks After Payment, 15-30 Days For Large Orders Sales Type Retail, Wholesale
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PU coupling spider for heavy machinery

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40H PU flexible coupling element

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heavy-duty construction coupling spider

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Product Description
40H PU Coupling Spider for Heavy-Duty Construction & Machinery
Product Overview

Premium 40H PU Coupling Spider designed for heavy-duty construction machinery and industrial applications. Features high-performance polyurethane material with superior wear resistance and oil resistance.

Specifications
Item Specification Details
Place of Origin Taiwan, China
Brand Name Pro-one
Model Number 40H PU Coupling Spider
Minimum Order Quantity 2 SET
Price Negotiable, Extra discount for bulk heavy-equipment wholesaler
Packaging Details Individual anti-collision PE bag, shock-absorbing filler, kraft color carton; moisture-proof packing for harsh jobsite storage
Delivery Time 1-2 working days for stocked goods; 15-30 working days for mass bulk orders after payment
Payment Terms Western Union, Cash, Bank Transfer, PayPal, HSBC, CITY BANK
Supply Ability 30000 SET / MONTH, stable output for heavy-duty aftermarket
Technical Specifications
Core Performance Features Matching Model
Premium Polyurethane(PU) material, high tear-resistance, superior abrasive resistance (3-5 times higher than ordinary rubber), excellent oil-resistance, anti-fatigue under frequent impact load, low permanent deformation, good misalignment compensation, long service life under dusty heavy-duty site environment 40H PU Spider, compatible for excavators, rotary drilling rigs, heavy-duty hydraulic pumps and industrial heavy machinery drive system
Material Application Range
High-performance Polyurethane (PU, 92-94 Shore A hardness) Construction machinery, rotary drill rig, heavy-duty hydraulic station, industrial pump unit, mining auxiliary equipment, heavy-load transmission system
Applicable Machine Types Related Series
Excavator, rotary drilling rig, wheel loader, heavy-duty hydraulic power pack, mining auxiliary machinery, engineering pump drive assembly 25H, 30H, 35H, 40H, 45H, 50H, 90H, 110H, 140H, 160H, 240H; 4A,4AS,8A,8AS,16A,16AS,22A,22AS,25A,25AS,28A,28AS,30A,30AS,50A,50AC,50AS,80A,80AS,90A,90AS,140A,140AS
Working Temperature Range Sales Type
-35℃ ~ +95℃ Retail, Wholesale, After-market OEM supply
Standard Color Nominal Torque
Off-white / Cream PU 600 Nm
Maximum Torque Max Rotational Speed
1750 Nm (improved over standard rubber 40H spider for heavy surge load) 4000 Min-1
Key Advantages
  • Pure PU elastomer, outstanding wear-resistance vs traditional rubber coupling spider
  • Low compression set, less permanent deformation under continuous heavy shock load
  • Excellent mineral-oil resistance, avoid swelling & softening when contacting hydraulic oil & engine oil
  • Stable performance in high-dust construction & mining working condition
  • Fail-safe design: machine still maintains basic torque transmission even PU spider gets worn
  • Direct replacement for original 40H ASSY, simple on-site installation without modification
Technical Data
  • Material: High-grade Polyurethane PU (92-94 Shore A)
  • Nominal Torque: 600 Nm
  • Max Surge Torque: 1750 Nm
  • Maximum Rotational Speed: 4000 Min-1
  • Operating Temperature: -35℃ ~ +95℃
  • Application: Heavy-duty construction machinery, excavator main pump drive, rotary drilling rig, industrial heavy-load pump unit, mining auxiliary transmission assembly
Packaging & Delivery

Packaging Details: Each single PU spider packed with individual anti-collision PE plastic bag. Whole set packed into kraft color carton with moisture-proof filler inside to prevent scratch and deformation during long-distance sea or land transport.

Delivery Time: 1-2 working days dispatch for in-stock orders after payment confirmation. 15-30 working days production cycle for large-volume bulk orders.

Our Core Advantages
  • Comprehensive spare-parts database with professional technical matching support
  • Professional sales team with more than 7-year experience in engineering transmission spare-parts
  • Strict pre-shipment verification for every batch
  • Free export document service for all orders
  • Fast response for after-sales consultation and technical support
Compatible Machine Brands & Models

Komatsu: PC45MR, PC56-7, PC60-7, PC70-8, PC60-6, PC40-7, PC40-8, PC60-2, PC60-5, PC60-6, PC75, PC100-5, PC120-6, PC150-5, PC130-7, PC200-3, PC200-6, PC200-8, PC210LC-8, PC220-8, PC240LC-8, PC300-3, PC300-5, PC300-6, PC300-7, PC360-7, PC400-3, PC400-5, PC600-6

Hitachi: ZX60, ZX70, ZX100M-1, ZX120, EX60, EX60-2, EX60-3, EX60-7, EX100-1, EX120-5, EX120-6, ZX200, ZX200-3, ZX230, ZX240, ZX240-3, EX200-1, EX200-2, EX200-3, EX200-5, EX200-6, EX210-2, EX220-2, EX220-3, EX225-5, EX270, EX300-1, EX300-2, ZX330-3, ZX450H, EX300-5

CAT: 312, 315, 302.5C, 324D, 320D, 330, 329D, E200B, E240, 320, 320C

Other Brands: Hyundai, Kobelco, Doosan/Daewoo, EC Series, Sumitomo, Kato, and Chinese Local Brands including CLG200, Sunward60, Sunward70, XG820

Product Images
40H PU Coupling Spider detailed view 40H PU Coupling Spider side profile 40H PU Coupling Spider installation view 40H PU Coupling Spider close-up detail

Tips for inquiry: To get fast and accurate quotation, please provide machine model, equipment application scenario, part number, or dimension data of old coupling spider. Sending photos of original spare-parts will be highly helpful for verification.

Frequently Asked Questions
Q1: What is the main difference between your 40H PU coupling spider and the traditional rubber coupling spider?
A1: Our product adopts high-performance PU polyurethane material, which features 3-5 times higher wear resistance, excellent oil resistance, low compression deformation and strong anti-fatigue performance. It effectively avoids swelling, aging and cracking problems common in rubber products under long-term heavy load conditions.
Q2: What equipment is the 40H PU coupling spider suitable for?
A2: This 40H PU coupling spider is widely applicable to full series of excavators, rotary drilling rigs, wheel loaders, heavy-duty hydraulic pump stations, mining auxiliary equipment and various industrial heavy machinery transmission systems.
Q3: Does the PU coupling spider need any modification during installation?
A3: No modification is required. Our 40H PU coupling spider strictly follows the original standard size of 40H series coupling accessories and is a direct plug-and-play replacement for original rubber couplings.
Q4: What is the working temperature range and load capacity?
A4: The operating temperature ranges from -35℃ to +95℃. The nominal torque reaches 600Nm, and the maximum surge torque is upgraded to 1750Nm, providing stronger load stability than ordinary rubber couplings.
Q5: Do you support small trial orders and mixed batch orders?
A5: Yes. The minimum order quantity is 2 sets, supporting small trial orders. We also support large batch wholesale orders and provide exclusive bulk discount policies for long-term cooperative customers.
Q6: What is your delivery time and shipping method?
A6: In-stock products can be shipped within 1-2 working days after payment. For large customized bulk orders, the production and delivery cycle is 15-30 working days. We support global shipping methods including sea freight and air express.
Q7: What payment terms do you accept for overseas customers?
A7: We support multiple cross-border payment methods including Western Union, Cash, Bank Transfer, PayPal, HSBC and CITY BANK international transfers.
Q8: What are the advantages of PU material in heavy-duty construction scenarios?
A8: Professional customized heavy-duty PU material has excellent anti-aging, anti-abrasion and anti-oil swelling properties. It resists severe vibration, torque impact and dust erosion while providing good shaft misalignment compensation and vibration damping effects.
Q9: How do you guarantee product quality and after-sales service?
A9: All PU coupling spiders undergo strict dimensional inspection, hardness testing and surface quality screening before shipment. We provide professional technical support and after-sales response service within 24 hours.