Product Overview: The HE 312 Adapter Sleeve
The HE 312 is a high-quality adapter sleeve designed for mounting bearings with a tapered bore onto cylindrical shafts. With a bore diameter of 55mm, this sleeve is specifically engineered to secure bearings that have a 60mm tapered bore (such as those in the 1200, 2200, or 22200 series) onto a standard 55mm shaft. As a crucial component in our Adapter Sleeves collection and a part of the HE 300 Series, the HE 312 provides a complete, reliable, and cost-effective mounting solution, coming complete with a lock nut and lock washer.
This adapter sleeve simplifies the bearing installation process, as it does not require a special shoulder or locating feature on the shaft. The sleeve is simply placed on the shaft, the bearing is pushed up the tapered seat, and then securely fastened using the provided lock nut and washer. This method ensures a tight, concentric fit, reducing vibration and improving the operational life of the machinery. Our HE 312 sleeves are manufactured from high-grade steel to ensure strength and durability in demanding industrial environments.
Key Features of the HE 312
- Complete Mounting Kit: Supplied as a full assembly including the tapered sleeve, a corresponding lock nut (KM 12), and a lock washer (MB 12).
- Simplified Installation: Allows for easy mounting of tapered bore bearings on plain or stepped cylindrical shafts, reducing assembly time.
- Secure and Reliable Fit: Ensures the bearing is firmly locked in position both axially and radially, preventing slippage during operation.
- Accommodates Shaft Tolerances: The design can accommodate a wider range of shaft diameter tolerances compared to direct mounting methods.
- Facilitates Dismounting: The sleeve design also simplifies the process of dismounting the bearing for maintenance or replacement.
- Durable Construction: Manufactured from high-quality steel for excellent durability and resistance to wear and deformation.
Common Applications
- Industrial Fans and Blowers: Used to mount bearings in large fan assemblies where reliability is critical.
- Conveyor Systems: Ideal for securing bearings on conveyor rollers and drive pulleys.
- Agricultural Machinery: Commonly found in equipment like combines, balers, and tillers where robust mounting is required.
- Pumps and Compressors: Provides a secure mounting solution for bearings on pump shafts and in compressor systems.
- Mining and Construction Equipment: Used in crushers, screens, and other heavy-duty machinery.
- Textile and Paper Mills: Ensures stable and precise rotation of rollers and shafts.
- Power Transmission Assemblies: A fundamental component in gearboxes and other power transmission units.
Benefits of Using the HE 312 Adapter Sleeve
- Cost-Effective: Eliminates the need for costly and precise machining of the shaft, allowing for the use of standard commercial-grade shafts.
- Enhanced Machine Performance: Provides a rigid and concentric fit that minimizes vibration and contributes to smoother, more efficient operation.
- Increased Bearing Life: A proper and secure mounting reduces stress on the bearing, leading to a longer service life.
- Reduced Maintenance: The ease of mounting and dismounting reduces downtime and labor costs during maintenance cycles.
- Versatility: Can be used in a wide array of industrial applications, making it a versatile stock item for maintenance teams.
- Shaft Protection: The sleeve protects the shaft surface from damage that could occur from direct bearing contact or press-fitting.
