Product Overview: The H 321 Adapter Sleeve
The H 321 is a precision-engineered adapter sleeve designed for mounting bearings with a tapered bore onto cylindrical shafts with a 100mm diameter. As a key component in our H 300 Series, this sleeve provides a complete mounting solution, typically supplied with a corresponding lock nut and lock washer. It simplifies the process of securely locating bearings on both plain and stepped shafts, eliminating the need for complex machining or shaft shoulders.
Part of our extensive range of Adapter Sleeves and Bearing Accessories, the H 321 facilitates easy installation and dismounting. Its design ensures a tight, reliable fit, allowing the bearing to be positioned at any point on the shaft. This versatility makes it an essential component for a wide array of industrial machinery, ensuring optimal performance and simplified maintenance procedures. Explore our full range of mounting solutions to support your mechanical assemblies.
Key Features of the H 321
- Complete Mounting Kit: Includes the slotted sleeve, a lock nut (e.g., KM 21), and a lock washer (e.g., MB 21) for a full assembly.
- Tapered Design: Ensures a strong, concentric grip on the shaft when the lock nut is tightened.
- Easy Installation & Removal: Simplifies the process of mounting and dismounting bearings, reducing downtime and labor costs.
- Versatile Shaft Positioning: Allows bearings to be securely located anywhere on a plain shaft without the need for shoulders or stops.
- High-Quality Material: Manufactured from durable steel to withstand high mounting forces and operational stresses.
- Precision Machining: Ensures accurate dimensions for a reliable fit between the shaft, sleeve, and bearing bore.
Common Applications
- Industrial Fans and Blowers: Used to mount bearings on long fan shafts, providing secure and adjustable positioning.
- Conveyor Systems: Essential for mounting bearings in pulley and roller assemblies, where easy adjustment and replacement are crucial.
- Agricultural Machinery: Widely used in equipment such as combines and balers to support rotating shafts under demanding conditions.
- Pumps and Gearboxes: Provides a reliable method for locating bearings within transmission and fluid-handling systems.
- Mining and Construction Equipment: Ideal for heavy-duty applications where robust and secure bearing mounting is required.
- Textile and Paper Mills: Supports rollers and drums, facilitating precise alignment and straightforward maintenance.
- Power Transmission Assemblies: A standard component for mounting bearings in various power transmission applications.
Benefits of Using the H 321 Sleeve
- Simplified Shaft Design: Reduces the need for costly and complex shaft machining, as shoulders are not required.
- Enhanced Bearing Security: Provides a secure, 360-degree grip that prevents the bearing from spinning on the shaft.
- Cost-Effective Solution: Offers an economical alternative to using bearings with a cylindrical bore on specially machined stepped shafts.
- Improved Maintenance Efficiency: The ability to easily mount and dismount bearings simplifies routine maintenance and replacement tasks.
- Accommodates Shaft Tolerances: Can be used on commercial-grade shafts with wider diameter tolerances, reducing manufacturing costs.
- Increased Equipment Reliability: Ensures proper bearing fit and location, contributing to longer service life and reduced risk of failure.
