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WUXI TRUMY High Performance Pump Coupling with High Shock Absorption and High Torque Capacity
| Brand Name | WUXI TRUMY |
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WUXI TRUMY High Performance Pump Coupling with High Shock Absorption and High Torque Capacity
Product Details
Weight:
Varies By Model, Approx. 10-50 Kg
Shockabsorption:
High
Productname:
WUXI TRUMY Coupling
Operatingtemperaturerange:
-20°C To 120°C
Torquecapacity:
Up To 5000 Nm
Maxspeed:
6000 RPM
Compliancestandards:
ISO 9001, CE Certified
Material:
High-grade Steel
Misalignmenttolerance:
Angular ±2°, Parallel ±0.5 Mm
Maintenance:
Low Maintenance Required
Installation:
Easy Assembly And Disassembly
Corrosionresistance:
Excellent
Connectiontype:
Flange Or Hub
Application:
Mechanical Power Transmission
Type:
Flexible Coupling
Highlight:
High Shock Absorption Pump Coupling
,High Torque Capacity Flexible Coupling
,Low Maintenance Industrial Coupling
Product Description
WUXI TRUMY Pump Coupling – Manufacturing, Inspection & Ordering Process
About Dongguan HydroBlue Co., Ltd.
DONGGUAN HydroBlue CO.,LTD. operates as a technology-focused enterprise offering full-spectrum technical solutions across fluid machinery, fluid engineering, industrial automation, and power conversion systems. Our 8-strong engineering team brings together expertise in fluid mechanics, electrical engineering, and electronic engineering to bridge the gap between R&D and commercial production. Ongoing joint development with Jiangsu University, Chinese Academy of Sciences, and Guangdong University of Technology ensures our processes and products stay ahead of industry requirements worldwide. Jiangsu University National Research Center of Pumps provides coupling torsional fatigue testing methodology and service life prediction for WUXI TRUMY coupling performance under cyclic pump loading; Chinese Academy of Sciences develops advanced polyurethane elastomer formulations for improved pin-bush coupling wear resistance and energy absorption; Guangdong University of Technology supports automated laser marking and torque test bench calibration for traceability of our coupling production.
Let us know the pump model and coupling specifications you require — our engineers will cross-reference compatibility and respond with a professional technical assessment.
OUR BRANDS & SERVICES
Our proprietary brand provides complete technical solutions across the fluid machinery and engineering spectrum. Supported by our suite of proprietary technologies and product brands, we provide clients with premium technical consultation, sales assistance, and bundled system solutions — covering pumps, frequency converters, servo drives, PLC-HMI, industrial control cabinets, motors, mechanical seals and systems, couplings, gearboxes, and comprehensive engineering project services (overseas on-site 3D scanning reverse molding of pump replacement parts, and field debugging by our dispatched engineers internationally).
Manufacturing Process
- Raw Material Receipt — Forged or cast steel hubs verified to material grade; elastomer compound batch samples tested for hardness, tensile, and elongation before production release
- Hub Rough Machining — Hub blank turned to overall dimensions on CNC lathe; bore rough-bored and faced; keyway slot milled or broached
- Heat Treatment (Gear Hubs) — Gas carburizing or induction hardening of gear tooth surfaces to 58–62 HRC; core hardness maintained at 30–40 HRC for toughness
- Hub Finish Machining — Bore finish-bored to H7 tolerance; flange face and hub OD finish-turned; keyway fit verified with gauge
- Elastomer Element Molding — Pin bushes and elastic sleeves compression-molded or injection-molded; post-cure cycle to stabilize elastomer properties
- Coupling Assembly — Hubs, flex elements, and fasteners assembled on alignment fixture; bolt torque and axial gap verified
- Dynamic Balancing — Assembled coupling mounted on balancing machine; imbalance corrected by radial drilling on correction planes; balance grade recorded
- Final Dimension & Marking — Coupling dimensions verified against drawing; coupling series, size, balance grade, and production batch laser-marked on hub OD
Inspection & Test Points
|
Test Stage |
Parameter |
Method |
Standard |
|---|---|---|---|
|
Hub bore |
Bore diameter |
Air gauge / CMM |
H7 (0 / +0.025 mm for 50–80 mm) |
|
Hub keyway |
Width & depth |
Keyway gauge |
P9 (DIN 6885) / JS9 (GB/T 1095) |
|
Elastomer bush |
Hardness, OD, ID |
Durometer, CMM |
±3 Shore A; dims ±0.2 mm |
|
Gear tooth (gear coupling) |
Tooth profile, hardness |
Gear checker, Hardness tester |
AGMA Class 8; 58–62 HRC surface |
|
Balance |
Residual imbalance |
Dynamic balancer |
G6.3 per ISO 1940 (standard) |
|
Axial gap |
Gap between hub faces after assembly |
Feeler gauge / depth gauge |
Per coupling spec (typical 2–5 mm) |
|
Paint / coating |
Dry film thickness, coverage |
Thickness gauge, visual |
Min 60 μm; no bare metal |
Elastomer Bush & Pin Options
|
Bush Material |
Hardness (Shore A) |
Temperature Range |
Damping Capacity |
Recommended Service |
|---|---|---|---|---|
|
NBR (standard) |
70–80 |
-20°C to +90°C |
Good |
Water, wastewater, general industrial |
|
Polyurethane |
85–95 |
-20°C to +70°C |
Excellent (higher energy absorption) |
Slurry, mining, higher shock loads |
|
FKM (Viton) |
75–85 |
-15°C to +200°C |
Moderate |
Chemical, hot fluids, aggressive environment |
How to Order
- Pump Model & Motor Details — Pump type (centrifugal, screw, PCP) and motor power/speed; used for coupling torque sizing
- Coupling Series Preference — Elastic pin (ZL/HL), drum gear (CL/GICL), rigid flange (YL), or spring plate (JM/JZM)
- Shaft Diameters — Motor shaft diameter and pump shaft diameter in mm; specify if inch
- Keyway Standard — GB/T metric (Chinese standard) or DIN metric; confirm keyway width and depth for each bore
- Bush Material — NBR (standard), polyurethane, or FKM
- Quantity & Delivery — Single pair or multiple couplings; 10–20 days deposit to dispatch for standard sizes
Payment: 70% T/T deposit, balance against copy of B/L.
FAQ
Q1: What is the difference between a WUXI TRUMY elastic pin coupling and a jaw coupling used in imported pumps?
A: The elastic pin coupling uses multiple steel pins with elastomer bushes that flex in shear to accommodate misalignment and absorb vibration. A jaw coupling uses a single elastomer spider compressed between hub jaws. The elastic pin coupling generally offers higher torque capacity for its size and better vibration damping across a wider frequency range. Elastic pin couplings are the most common type for Chinese standard centrifugal pumps, whereas jaw couplings are more common in European and American pump brands.
Q2: Can a WUXI TRUMY coupling be used as a direct replacement for a imported brand coupling on an existing pump?
A: This depends on the shaft diameters, space envelope, and torque requirement. If the bore range, hub OD, and overall length are compatible, a WUXI TRUMY coupling can replace an imported coupling. However, the flex element type and misalignment capacity will differ. We recommend sending the original coupling dimensions (hub OD, overall length, shaft bores, and keyway sizes) so we can identify the closest WUXI TRUMY equivalent.
Q3: Do you supply the complete coupling assembly or individual parts separately?
A: Both options are available. We can supply a complete coupling assembly (two hubs plus flex elements and fasteners, balanced and ready to install), or individual components: hubs only (for customers who already have flex elements), replacement elastomer bush sets, or replacement pin sets. Specify which arrangement you need at order time.
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Contact Us at Any Time
Room 1904, Building 1, Zhongtang Tianan Digital City, No.89 Jinyuan Road, Zhongtang Town,Dongguan City, Guangdong Province, China.
