Description :
A Heavy-Duty Flexible Shaft is a mechanical power transmission device designed to transfer rotational motion and torque between two points that may not be aligned in a straight line.
These shafts are engineered to handle high torque loads, making them suitable for demanding industrial environments. The flexibility allows the shaft to bend and operate efficiently in tight or complex spaces where rigid shafts cannot be used. The outer casing protects against dust, moisture, and mechanical damage while also helping retain lubrication.
It is a Shaft consist of Inner Core, Outer casing Motor Coupling and Hand piece. It is designed to penetrate into the tube inner dia, flexibly even into the bend tubes, without damaging the inner surface of the tube, and capable of transmitting rotary power from the Power unit to the tool head or brush.
INNER WIRE CORE is flexible shaft's most important working element. It is designed and constructed to meet power drive operating conditions that include torque, speed, length and minimum bend radius.
At the center of the core is a single wire around which successive multi-stranded layers of wires are wrapped. Each layer is wound in the opposite direction and at right angles to the layer directly beneath it. The direction in which the wire on the outer most layer is wound determines the direction in which the shaft is designed to rotate.
OUTER CASTING made of galvanized steel strip and is internally reinforced with antifriction lining to support the wire core and resist the torque. Outer casing does not rotate but protect the inner core and the tube inner dia.
HANDPIECE is attached to one end of the shaft, either detachable or fixed type, with threaded spindle to connect tool heads or brushes.
MOTOR COUPLING is fitted to the other end of the shaft, either threaded type or shear pin type, connected to the main power unit.
Heavy-duty flexible shafts are commonly used in:
• Industrial machinery
• Construction tools
• Automotive systems
• Marine and agricultural equipment
They are valued for their durability, shock absorption, and ability to maintain performance under vibration and misalignment.
A Heavy-Duty Flexible Shaft is a strong, flexible mechanical component used to transmit rotational power in situations where alignment is difficult. It offers high torque capacity, durability, and versatility, making it ideal for heavy-duty applications, though it requires proper maintenance to minimize friction and wear.
A Heavy-Duty Flexible Shaft is a mechanical component designed to transmit rotational motion (torque) between two points that are not perfectly aligned. It is commonly used in industrial, automotive, and power-tool applications where rigid shafts would be impractical.
Key Points of :-
• Structure:
Made of multiple layers of tightly wound steel wires or cables, often covered with a protective outer casing.
• Function:
Transfers rotary motion while allowing bending and flexibility, enabling operation around corners or in confined spaces.
• Features:
o High torque transmission capacity
o Flexibility without breaking
o vibration, and misalignment
o Long service life under heavy loads
• Applications:
o Power tools (grinders, drills)
o Industrial machinery
o Automotive systems (e.g., speedometers, drive systems)
o Marine and agricultural equipment
• Advantages:
o Reduces need for precise alignment
o Absorbs shocks and vibrations
o Enables compact and versatile machine design
• Limitations:
o Efficiency loss due to friction
o Heat generation at high speeds
o Requires proper lubrication and maintenance
Available in 25mm (1”), 32mm (1.1/4”) and 36mm (1.3/8”) OD with 12mm (1/2”), 16mm (5/16”) and 19 mm (3/4”) inner core respectively, with various length of 6 to 22 mtrs. Long. Longer length is also available on request.
In short:
A heavy-duty flexible shaft is a durable, bendable drive component that efficiently transmits rotational power in situations where straight, rigid shafts cannot be used.
