Plum Blossom Coupling
Plum Blossom Couplings, also known as jaw couplings, transmit torque through two metal hubs connected by an elastic spider. The elastomeric element provides torsional flexibility and helps absorb shock and vibration during power transmission.
Product Introduction
Plum Blossom Couplings, also known as jaw couplings, transmit torque through two metal hubs connected by an elastic spider. The elastomeric element provides torsional flexibility and helps absorb shock and vibration during power transmission.
Technical Parameters
|
Parameter |
Specification |
|
Product Name |
Plum Blossom Coupling |
|
Product Standard |
GB/T 5272-2017 |
|
Torque Range |
0.5–50,000 N·m |
|
Maximum Speed |
20,000 rpm |
|
Bore Diameter |
3–600 mm |
|
Hub Material |
Aluminum Alloy, 45# Steel, Stainless Steel, or Nylon |
|
Elastic Spider Material |
Polyurethane |
|
Connection Type |
Keyway, Set Screw, or Clamping |
|
Coupling Type |
Basic, Flange, Brake-Wheel, or Brake-Disc Type |
|
Operating Temperature |
−35°C to +80°C |
Coupling Configuration and Application
Choose the coupling type according to the equipment interface, mounting arrangement, and braking requirements.
|
Type |
Structure and Mounting Interface |
Typical Application |
|
LM - Basic Type |
Two coupling hubs connected by an elastic spider; mounted directly on aligned shaft ends. |
General motor-to-driven-equipment connections. |
|
LMS - Flange Type |
Flange-mounted configuration for equipment requiring a flange interface. |
Drives where a flange connection is specified by the equipment design. |
|
LML - Brake-Wheel Type |
Incorporates a brake wheel into the coupling assembly. |
Drive systems requiring braking through a compatible brake wheel. |
|
LMP - Brake-Disc Type |
Incorporates a brake disc into the coupling assembly. |
Drive systems equipped with a compatible disc-brake arrangement. |
Selection Considerations
Select the configuration based on the equipment interface and braking arrangement. Choose the spider according to torque requirements, torsional stiffness, operating temperature, and load characteristics.
Confirm spider dimensions and hardness compatibility before ordering.
Pre-Installation Checklist
Shaft connection: Confirm both shaft diameters, keyways, and the required bore tolerances.
Installation space: Check hub length, overall length, outer diameter, and shaft-end spacing.
Operating conditions: Verify torque, speed, starting frequency, and load fluctuations.
Shaft alignment: Check angular, parallel, and axial displacement against the selected model's allowable limits.
Maintenance access: Determine whether the spider can be replaced without moving the connected equipment.
Manufacturing and Customization
For OEM equipment manufacturers and industrial replacement projects, Symuren can evaluate coupling requirements based on application conditions, equipment interfaces, and technical drawings.
Potential customization options include:
Bore and Keyway Dimensions: Shaft bore sizes and keyway dimensions.
Hub Configuration: Hub dimensions and connection types.
Hub Material and Surface Treatment: Options based on operating conditions and order requirements.
Elastic Spider: Material and hardness selection according to torque requirements and operating conditions.
Special Dimensions: Non-standard dimensions subject to drawing review and manufacturing feasibility.
Quality Inspection
Dimensional Inspection: Measure bore diameter, keyway dimensions, hub dimensions, and overall length using suitable measuring instruments. Compare results with the approved drawing or order specifications.
Material Verification: Check hub material grades and elastic spider material specifications against the order requirements. Material certificates may be reviewed when provided.
Visual Inspection: Examine machined surfaces, jaw profiles, and elastomer surfaces for visible defects, damage, or irregularities.
Assembly Inspection: Check hub-to-spider fit, component compatibility, and assembly dimensions against the specified configuration, where applicable.
Final Inspection: Review inspection results and verify product specifications, quantity, and configuration against the order requirements before shipment.
Request a Quotation
To help us identify the appropriate Plum Blossom Coupling configuration, please provide:
Coupling Requirements: Model, quantity, or reference drawing.
Shaft Details: Shaft diameters, keyway dimensions, and connection type.
Operating Conditions: Motor power, speed, torque, starting frequency, and load characteristics.
Installation Requirements: Available space, overall dimensions, and operating environment.
Customization Needs: Hub material, spider material, and any special requirements.
Technical Review and Quotation：
Based on the information provided, our team will review the proposed coupling configuration and dimensional compatibility before issuing a quotation.
Any special requirements will be confirmed before order finalization.
FAQ
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