Product Overview: H 3948 Adapter Sleeve
The H 3948 is a high-precision component from our H 3900 Series of Adapter Sleeves, engineered for mounting bearings with a tapered bore onto cylindrical shafts with a 220mm diameter. This sleeve facilitates a secure and reliable fit, simplifying the installation process and ensuring optimal performance in demanding industrial applications. It is an essential part of our Bearing Accessories range, providing a cost-effective and efficient method for bearing mounting without the need for complex shaft machining.
Adapter sleeves like the H 3948 allow for wider shaft tolerances and enable easy axial positioning of the bearing. When used with the corresponding lock nut and lock washer, it provides a robust assembly that can withstand heavy radial loads and high rotational speeds, making it a cornerstone of modern power transmission systems.
Key Features of the H 3948 Adapter Sleeve
- Shaft Compatibility: Designed specifically for use on 220mm cylindrical shafts.
- Simplified Mounting: Allows for easy installation and dismounting of bearings with a tapered bore, reducing maintenance downtime.
- Secure Fit: The tapered design, when tightened with a lock nut, creates a strong interference fit that prevents the bearing from slipping on the shaft.
- High-Quality Material: Manufactured from durable, high-grade steel to ensure strength, longevity, and resistance to wear and tear.
- Complete Assembly: Designed to be used with a KM 48 lock nut and an MB 48 lock washer (sold separately) for a complete and secure fastening solution.
- Cost-Effective Design: Eliminates the need for expensive stepped shafts, allowing for the use of standard smooth shafts.
Common Applications
- Mining and Quarrying Equipment: Used in crushers, conveyor systems, and excavators where robust bearing arrangements are critical.
- Pulp and Paper Mills: Essential for rollers, presses, and other machinery operating under heavy loads and continuous use.
- Steel Manufacturing: Supports bearings in rolling mills, continuous casters, and other heavy-duty equipment.
- Large Industrial Fans and Blowers: Provides stable mounting for fan shafts, ensuring smooth and reliable operation in ventilation systems.
- Power Generation: Utilized in turbines, generators, and large gearboxes for secure shaft and bearing assembly.
- Construction Machinery: Found in heavy vehicles and equipment where reliability under harsh conditions is paramount.
- Marine Propulsion Systems: Used to mount bearings on propeller shafts and in transmission systems.
Benefits of Using the H 3948 Sleeve
- Enhanced Reliability: Provides a secure, 360-degree grip on the shaft, ensuring the bearing operates correctly and reliably.
- Increased Bearing Life: A proper fit prevents inner ring rotation on the shaft, minimizing wear and extending the bearing's service life.
- Simplified Maintenance: The sleeve design makes it easier to dismount bearings for inspection or replacement, saving time and labor costs.
- Design Flexibility: Allows bearings to be positioned at any point along a smooth shaft, offering greater flexibility in machine design.
- Accommodates Shaft Tolerances: Can be used on shafts with wider commercial tolerances, reducing the need for precision shaft grinding.
- Improved Operational Efficiency: Ensures smooth power transmission by creating a rigid and reliable connection between the bearing and the shaft.
