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NL3 Nylon Sleeve Gear Shaft Coupling

  • NL3

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  • Product Overview and Definition of Flexible Shaft Coupling

The NL type nylon internal gear coupling is suitable for inter-shaft and flexible transmission. It allows for relatively large axial, radial and angular displacements. It features a simple structure, convenient maintenance, easy disassembly and assembly, low noise, small transmission efficiency loss and long service life. The shaft hole types include cylindrical (Y), conical (Z) and short cylindrical (J). The shaft holes and keyways are processed in accordance with the provisions of the national standard GB3852-83 "Forms and Dimensions of Shaft Holes and Keyways of Couplings". Operating temperature: -20℃ to +700℃, torque range: 40N.m.

 The half coupling is made by precision casting, with HT20-40 cast and ZG35I1 cast steel. The shaft hole and keyway are formed by drawing. The outer sleeve of the elastic body of the internal gear coupling can be made of various hardness materials such as synthetic rubber, polyurethane rubber and reinforced nylon elastic body according to the user's requirements.

Flexible shaft coupling (also known as flexible coupling) is a transmission device that compensates the relative displacement of two axes by elastic elements. Compared with rigid coupling, its core advantage is that it can absorb vibration, buffer impact and adapt to axial/radial/angular deviation. According to the structure difference, it is mainly divided into quinum-shaped, gear type, universal joint and claw type.


Technical features and advantages of Flexible Shaft Coupling

1.Displacement compensation capability
It can handle angular deviation ≤3°, axial displacement ±2mm, radial deviation, and is suitable for installation error or thermal deformation scenarios.
2.Vibration reduction and thermal insulation
Elastic elements (such as rubber star block, plastic claw) can reduce transmission vibration by more than 30% and achieve electrical isolation.
3.Modular design
Some models support blind insertion of components (such as the EKM series) for fast maintenance without removing the motor.


  • Core functions and roles of Flexible Shaft Coupling

  • 1.Compensation bias: This is the primary function. Flexible components (such as rubber, polyurethane, metal sheet, diaphragm, etc.) can undergo elastic deformation, absorb and adapt to various misalignments between axes, and ensure the continuity of power transmission.
    2.Buffer vibration reduction: It can mitigate the impact and vibration from the motor or the load side, protect the key components in the transmission system (such as motors, bearings, reducers, etc.), and improve the smoothness and life of the system.
    3.Vibration absorption: Some types of flexible couplings (such as elastic pin type) can isolate vibration to a certain extent and prevent vibration from passing between devices.
    4.Transfer torque: the most basic function, the drive shaft power is reliably transmitted to the driven shaft.
    5.Electrical insulation: for couplings with non-metallic elastic elements, it can provide certain electrical insulation performance.


item
value
Applicable Industries
Advertising Company, Building Material Shops, Construction works , Energy & Mining, Farms, Food & Beverage Factory, Food &
Beverage Shops, Food Shop, Home Use, Machinery Repair Shops, Manufacturing Plant, Printing Shops, Restaurant, Retail, Other
Structure
Universal
Standard or Nonstandard
Standard
Material
Steel
Type
Flexible
Rated Torque
2000n-m
Bore Diameter
100mm
Maximum Speed
5000RPM
Customized support
OBM, ODM, OEM
Flexible or Rigid
Flexible

Flexible shaft coupling is an indispensable key component in modern mechanical transmission. It is not only a simple connector, but also a "protector" of the system, which significantly improves the reliability, stability and life of the whole transmission system by compensating deviation and absorbing vibration.


Parameters of Flexible Claw Coupling


coupling (2)

coupling (3)

coupling (4)















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