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Overview
The XW Machinery Key Lock Differential Friction Ring is a high-performance friction ring designed for use with Key Type Differential Shafts in slitting, rewinding, converting, printing, flexible packaging, paper processing, film manufacturing and nonwoven production lines. Engineered for precision winding applications, the friction ring automatically compensates for thickness variations between slit rolls by allowing controlled differential slip, ensuring each roll maintains proper winding tension independently and resulting in tighter roll formation, improved edge quality and reduced material waste.

Key Features

• High-performance Key Lock differential friction ring
• Designed specifically for Key Type Differential Shafts
• Precise differential slip control
• Stable torque transmission
• Excellent wear resistance
• Long service life
• Smooth winding performance
• High-speed operation capability
• Easy installation and maintenance
• Consistent friction characteristics

Benefits of Differential Friction Rings

• Uniform winding tension across multiple rolls
• Improved roll hardness consistency
• Reduced telescoping
• Minimized wrinkles
• Better edge quality
• Lower material waste
• Increased production efficiency
• Improved finished roll appearance

Applications

• Slitting machines
• Rewinding machines
• Film converting lines
• Flexible packaging production
• Paper converting equipment
• Label manufacturing systems
• Aluminum foil processing
• Copper foil production
• Lithium battery electrode manufacturing
• Nonwoven fabric processing
• Plastic film production
• Printing and laminating machines

Precision Differential Winding Technology
The friction ring is designed to work in differential shaft systems where independent tension control of multiple rolls is required. Each ring allows controlled rotational compensation between the shaft and the individual winding core, ensuring every roll receives appropriate winding tension even when roll diameters or material thicknesses vary. Compared with conventional solid winding shafts, differential friction ring systems provide significantly improved winding quality and tension uniformity.

Advantages of XW Machinery Friction Rings

• High torque stability
• Precision machining accuracy
• Durable friction surfaces
• Consistent slip characteristics
• Excellent heat resistance
• Reduced maintenance requirements
• Reliable performance in continuous operation
• Compatibility with various core sizes

System Integration

• Key Type Differential Shaft
• Ball Type Differential Shaft
• Roller Type Differential Shaft (Slitter Differential Shaft)
• Air Expanding Shaft
• Automatic Web Tension Controller
• Magnetic Powder Brake
• Tension Control System

Table: Specifications
Product Name: Differential Shaft Slip Ring
Type: Key Type Friction Ring
Material: High-strength Steel
Shaft Size: 3 Inch / 6 Inch
Application: Differential Air Shaft
Function: Independent Slip Tension Control
Surface Treatment: Wear-resistant Hardened Finish
Installation: Replacement Type
Customization: Available

Caractéristiques / spécifications techniques

• Product name: Differential Shaft Slip Ring
• Model / type: Key Type Friction Ring
• Material: High-strength steel with wear‑resistant hardened finish
• Shaft compatibility / size: 3 Inch / 6 Inch (compatible with differential air shaft systems)
• Available core bore / ring sizes (variants indicated on product page): 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 50mm
• Primary function: Independent slip tension control for each winding core
• Surface treatment: Hardened, wear‑resistant finish for extended service life
• Operation: Designed for high‑speed slitting and rewinding with consistent friction characteristics
• Installation: Replacement‑type friction ring, easy installation and maintenance
• Customization: Custom specifications available to match torque range, shaft size, web width and line speed