Jiteng is a professional manufacturer of Locking Assembly in China. We support both bulk orders and immediate selection from stock. This product is a keyless shaft-to-hub transmission component; it relies on bolt-induced conical expansion force to achieve a secure transmission connection. It causes no damage to the shaft, offers convenient assembly and disassembly, features high centering precision, and is available in a comprehensive range of specifications. It serves as the preferred, high-efficiency connection component for assembling parts such as gears and pulleys, and stands as one of our factory's five core transmission product lines.
1. The expansion sleeve utilizes tightening bolts to generate axial thrust, causing the inner and outer sleeves to contract and expand respectively. This creates a uniform and powerful clamping force across the contact surfaces between the shaft and the hub.
2. By leveraging the static friction generated at the contact surfaces, it simultaneously achieves the stable transmission of both torque and axial force, thereby eliminating the traditional transmission method that relies on keys engaging with keyways.
1. The assembly and disassembly processes are simple; neither the shaft nor the hub requires complex additional machining—such as milling keyways or drilling holes—thereby fundamentally preventing machining-related damage to the shaft and hub base materials.
2. They feature high centering precision and excellent coaxiality. Equipment operates without transmission backlash, ensuring that the running process remains free from idle-stroke jitter or abnormal vibrations.
3. They possess inherent overload buffering properties capable of absorbing impact loads during equipment operation. In the event of sudden overloads, slight slippage at the contact surfaces buffers the stress, thereby indirectly extending the overall service life of the machinery.
1. They are commonly used for the assembly and secure mounting of transmission accessories—such as couplings, pulleys, gears, sprockets, and rollers—onto main shafts, making them suitable for the vast majority of shaft-to-hub connection scenarios.
2. Practical applications span numerous heavy and light industrial sectors, including machine tools, automation equipment, metallurgical machinery, packaging machinery, and construction machinery.
3. The product series features a complete range of specifications capable of matching transmission assemblies of various sizes, thereby providing stable and reliable connection solutions for a wide variety of equipment.
1. Torque Limiters: Designed to provide integrated overload disconnection protection, thereby preventing sudden stall-induced shock damage to the expansion sleeves and downstream equipment.
2. Precision Universal Joints: Utilized in variable-angle transmission applications; when paired with expansion sleeves, they ensure secure, backlash-free locking.
3. Safety Couplings: Form protective transmission units that serve a dual function: ensuring secure connection and fixation while simultaneously providing overload protection.
4. Drive Shafts: In long-distance transmission scenarios, these shafts rely on expansion sleeves to securely lock and fix components at the shaft ends.
5. Expansion Locking Assemblies: Serving as versatile locking components for shaft-to-hub connections, they integrate and facilitate the assembly process for all individual components within a complete transmission system.
