Product Overview: The H 3284 Adapter Sleeve
The H 3284 is a precision-engineered adapter sleeve designed for mounting bearings with a tapered bore onto cylindrical shafts with a 420mm diameter. As a key component in our Adapter Sleeves collection and part of the H 3200 Series, this sleeve provides a simple, reliable, and cost-effective method for securing bearings. It allows for bearings to be mounted on plain or stepped shafts, eliminating the need for special machining. The assembly typically includes the adapter sleeve, a corresponding lock nut, and a lock washer, which together ensure the bearing is firmly fixed in its axial position.
Adapter sleeves are one of the most commonly used components for locating bearings, offering easy installation and dismounting. The H 3284 is slit and has a tapered outer surface that matches the tapered bore of the bearing, ensuring a tight and secure fit when the lock nut is tightened. This makes it an essential part for various heavy-duty industrial applications.
Key Features of the H 3284 Sleeve
- Simplified Mounting: Allows for easy installation of bearings with a tapered bore onto cylindrical shafts.
- Secure Fixation: When used with the appropriate lock nut and washer, it provides strong and reliable axial locking of the bearing.
- Cost-Effective Design: Eliminates the need for expensive shaft shoulders or other special machining on the shaft.
- Precision Machined: Manufactured to tight tolerances to ensure a correct and secure fit between the shaft, sleeve, and bearing.
- High-Quality Material: Constructed from durable steel to withstand high mounting forces and operational loads.
- Facilitates Dismounting: Simplifies the process of removing the bearing for maintenance or replacement, reducing downtime.
Common Applications
- Large Industrial Fans and Blowers: Used to mount large rotor bearings securely onto drive shafts.
- Conveyor Systems: Ideal for securing bearings on long conveyor rollers and drive pulleys.
- Mining and Quarrying Equipment: Essential for crushers, vibrating screens, and other heavy machinery where robust mounting is critical.
- Pulp and Paper Mills: Supports the large rollers used in paper processing machinery.
- Industrial Gearboxes: Provides a reliable method for mounting gears and bearings in large transmission systems.
- Agricultural Machinery: Used in heavy-duty equipment like large harvesters and combines.
- Steel Mill Equipment: Employed in rolling mills and other machinery operating under extreme conditions.
Benefits of Using the H 3284 Adapter Sleeve
- Enhanced Versatility: Enables the use of standard plain shafts, simplifying the overall machine design.
- Improved Reliability: Creates a rigid, 360-degree contact between the bearing and shaft, ensuring stable operation.
- Reduced Maintenance Costs: The ease of mounting and dismounting saves time and labor during maintenance cycles.
- Wider Shaft Tolerances: Accommodates slightly wider tolerances on the shaft diameter compared to direct interference fits.
- Increased Bearing Life: Proper and secure mounting prevents inner ring slippage, which can lead to premature bearing failure.
- Global Standard Compliance: Manufactured to internationally recognized standards, ensuring interchangeability and consistent quality.
