Product Overview: The H 3940 Adapter Sleeve
The H 3940 is a high-quality adapter sleeve designed for mounting bearings with a 200 mm tapered bore onto a 180 mm cylindrical shaft. As a crucial component in our Adapter Sleeves collection, and part of the robust H 3900 Series, this sleeve provides a simple, reliable, and cost-effective method for securing bearings. It eliminates the need for precision-machined steps or shoulders on the shaft, allowing for more flexible and economical machinery design. The H 3940 is supplied as a complete assembly, including a lock nut and a lock washer, ensuring a secure and stable fit for demanding industrial applications.
Key Features of the H 3940
- Complete Mounting Solution: Supplied with a corresponding lock nut (KM 40) and lock washer (MB 40) for a full assembly.
- Facilitates Easy Mounting: Enables bearings with a tapered bore to be securely positioned on plain or stepped cylindrical shafts.
- Precision Machined: Manufactured to tight tolerances to ensure a concentric and secure grip on the shaft, minimizing vibration.
- Slotted Design: The sleeve is slotted to allow for contraction and a tight clamp onto the shaft when the lock nut is tightened.
- Simplifies Dismounting: Allows for easier removal of the bearing from the shaft during maintenance or replacement.
- Durable Construction: Made from high-strength steel to withstand high mounting forces and operational stresses.
Common Applications
- Conveyor Systems: Used for mounting bearings on long conveyor drive shafts and pulley systems.
- Industrial Fans and Blowers: Provides a secure mounting solution for bearings in large ventilation and air-handling units.
- Mining and Quarrying Equipment: Essential for mounting bearings in crushers, vibrating screens, and other heavy-duty machinery.
- Pulp and Paper Mills: Applied in rollers and processing equipment where reliable bearing performance is critical.
- Agricultural Machinery: Used in combines, harvesters, and other large farm equipment.
- Large Gearboxes and Transmissions: Secures bearings on shafts, ensuring proper alignment and load distribution.
- Construction Machinery: Employed in various heavy equipment where robust bearing arrangements are required.
Benefits of Using the H 3940 Adapter Sleeve
- Cost-Effective: Reduces manufacturing costs by allowing the use of less expensive, straight cylindrical shafts instead of stepped shafts.
- Enhanced Reliability: Provides a secure, 360-degree grip on the shaft, ensuring the bearing is firmly locked in its axial position.
- Simplified Installation: The assembly process is straightforward and does not require specialized heating or pressing equipment.
- Improved Maintenance Efficiency: Bearings can be easily mounted and dismounted, significantly reducing downtime for repairs.
- Increased Bearing Life: Ensures correct radial internal clearance and secure mounting, which are vital for maximizing the service life of spherical roller bearings.
- Design Flexibility: Allows bearings to be positioned at any point along a plain shaft, offering greater flexibility in machine design.
