Product Overview: The H 218 Adapter Sleeve
The H 218 is a high-quality adapter sleeve designed to mount bearings with a 90mm tapered bore onto a cylindrical shaft with an 80mm diameter. As a crucial component in our Adapter Sleeves collection and a part of the H 200 Series, this sleeve provides a simple, reliable, and cost-effective method for locating bearings on smooth or stepped shafts. The H 218 assembly includes a precision-engineered sleeve, a corresponding KM 18 lock nut, and an MB 18 lock washer, ensuring a secure and stable fitment.
This component is essential for applications where precise bearing positioning is required without the need for complex and expensive shaft machining. The sleeve's tapered outer surface perfectly matches the bearing's inner ring bore, and tightening the lock nut drives the bearing up the taper, creating a strong interference fit. This mechanism simplifies both installation and dismounting, making it a preferred choice for a wide range of industrial machinery.
Key Features of the H 218 Adapter Sleeve
- Facilitates Easy Mounting: Allows for the straightforward installation of tapered bore bearings onto cylindrical shafts.
- Complete Assembly: Supplied as a complete set with a lock nut (KM 18) and lock washer (MB 18) for secure fastening.
- Enables Use of Standard Shafts: Eliminates the need for special shaft shoulders, undercuts, or threads, allowing the use of commercial-grade smooth shafts.
- Secure and Precise Fit: Creates a strong interference fit that firmly locates the bearing both axially and radially.
- Accommodates Shaft Tolerances: Can be used on shafts with wider diameter tolerances compared to bearings with cylindrical bores.
- Simplifies Dismounting: The sleeve design makes bearing removal a much easier process.
Common Applications
- Conveyor Systems: Used to mount bearings on head and tail pulley shafts, ensuring reliable operation.
- Industrial Fans and Blowers: Provides secure mounting for fan shaft bearings, reducing vibration and increasing service life.
- Agricultural Machinery: Ideal for equipment like combines and balers where robust and serviceable bearing arrangements are necessary.
- Pumps and Compressors: Ensures precise alignment and securement of bearings on pump and compressor shafts.
- Mining and Construction Equipment: Used in crushers, screens, and other heavy-duty machinery for reliable bearing performance.
- Textile and Printing Presses: Facilitates the accurate positioning of bearings on rollers and cylinders.
Benefits of Using the H 218 Sleeve
- Cost-Effective: Reduces the need for expensive shaft machining, lowering overall manufacturing and maintenance costs.
- Increased Reliability: Provides a full-circumference grip on the shaft, ensuring excellent concentricity and operational stability.
- Versatility: Allows bearings to be positioned at any point along a smooth shaft, offering design flexibility.
- Reduced Downtime: Simplifies the installation and removal process, minimizing maintenance time.
- Improved Bearing Life: A proper interference fit prevents inner ring rotation on the shaft, which can cause wear and premature failure.
- Enhanced Rigidity: The tight fit between the shaft, sleeve, and bearing contributes to a more rigid and stable assembly.
