Ball Transfer Unit Mounting Types Explained
Flange Mount Ball Transfer Units
Flange mount units are bolted to a surface using threaded holes in the flange. They are used where the mounting surface is thick enough to support the flange and where the unit must be secured without welding. The flange provides a stable base and allows for easy removal and replacement.
Press Mount Ball Transfer Units
Press mount units are pressed into a hole in a flat surface. They rely on interference fit for retention and are used in thin or lightweight mounting surfaces where welding or bolting is not practical. They are suitable for applications with moderate load and low vibration.
Stud Mount Ball Transfer Units
Stud mount units have a threaded stud that extends from the base. They are secured by a nut on the opposite side of the mounting surface. This type is used where the mounting surface is accessible from both sides and where frequent disassembly is required.
Machined Ball Transfer Units
Machined units are precision-finished from solid blocks of material. They are used where high load capacity, tight tolerances, or long service life are required. The machining ensures a smooth, accurate fit and consistent performance under heavy or repetitive loads.
Pressed Ball Transfer Units
Pressed units are formed from sheet metal and are used in low-load applications. They are cost-effective and lightweight, suitable for light-duty conveyance or where space and weight are critical. They are not recommended for high impact or continuous heavy use.
Ball and Case Materials by Series
Ball transfer units are available with balls and cases in nylon, steel, or stainless steel. Nylon offers low noise and corrosion resistance. Steel provides high strength and wear resistance. Stainless steel is used where hygiene, corrosion resistance, or cleanroom conditions are required.
Load Capacity by Model
Each model in the CY SP D NL IA IS KS KSM SI SD IK UK and NJ LW FB series has a listed load capacity, max load capacity, and weight. Use the model-specific values to match the unit to the application’s static and dynamic load requirements.
Questions on This Topic
What is the difference between flange mount and press mount units?
Flange mount units are bolted using holes in the flange, while press mount units are pressed into a hole and rely on interference fit for retention.
When should I use a stud mount instead of a flange mount?
Use stud mount when the mounting surface is accessible from both sides and frequent disassembly is needed, or when bolting through the flange is not possible.
Are machined units stronger than pressed units?
Yes, machined units are stronger and more durable due to precision machining and solid material construction, while pressed units are lighter and used in low-load applications.
Which ball material is best for heavy loads?
Steel balls provide the highest strength and wear resistance for heavy load applications. Stainless steel is used where corrosion resistance is needed.
Can I mix nylon balls with steel cases?
Yes, ball and case materials are available in different combinations. Nylon balls reduce noise and are corrosion-resistant, while steel or stainless steel cases provide structural strength.
Apply This to Your Own Line
Send your dimensions and load figures and the matching catalogue models come back with a price.