BUHL Ball Transfer Unit | Hex Head Stud Mount | 304 Stainless Steel | JDF
The BUHL Series Ball Transfer Unit is a hex-head stud mounted omnidirectional load-bearing unit with a 15.87mm SUS440C main ball and 304 stainless steel body. It is designed for applications where the unit needs to be threaded into a mounting hole, allowing for easy installation and replacement without the need for press-fit equipment.
How to select the right BUHL unit:
Determine the weight of the heaviest item to be moved.
Estimate the minimum number of units that will bear the load at any moment (typically 3-4 for flat loads).
Divide the total load by the minimum supporting units to get the nominal load per unit.
Apply a safety factor: divide the rated capacity by 2 for steady handling, or by 3 for shock/impact or continuous duty.
Select the model whose rated capacity exceeds the required per-unit load after applying the safety factor.
Example: For a 150 kg load supported by 4 units, the nominal load per unit is 37.5 kg. With a safety factor of 2, the required rated capacity is 75 kg (approx. 735 N). BUHL200 is suitable.
Technical Specifications Table
| Model | Number of Rollers | Ball Diameter (mm) | Allowable Load per Unit (N / kgf) | Body Material | Main Ball Material |
|---|---|---|---|---|---|
| BUHL200 | 4 | 15.87 | 343 / 35 | 304 Stainless Steel | SUS440C |
| BUHL400 | 8 | 15.87 | 343 / 35 | 304 Stainless Steel | SUS440C |
| BUHL600 | 12 | 15.87 | 343 / 35 | 304 Stainless Steel | SUS440C |
The BUHL Series Ball Transfer Unit is widely used in the following applications:
Assembly Lines & Workstations: Multi-directional transfer and positioning of workpieces between stations
Conveyor Transfer Points: Direction changes at conveyor curves or intersections
Mold Handling & Changing: 360° movement and positioning of molds on mold change carts
Packaging & Inspection Stations: Free movement of workpieces on packaging or inspection tables
Warehousing & Logistics Equipment: Low-friction movement of heavy loads on storage racks or transfer tables
FAQ
Q1: What is the difference between BUHL and BUHA?
A: BUHL uses a hex-head stud for threaded mounting, while BUHA uses a press-fit design for flush mounting. Choose BUHL when you need easy replacement or have a threaded mounting hole available; choose BUHA when you need a flat surface with hidden rollers.
Q2: What is the difference between BUHL200, BUHL400, and BUHL600?
A: The three models differ in the number of integrated ball rollers. BUHL200 has 4 rollers, BUHL400 has 8, and BUHL600 has 12. The total load capacity of the assembly increases with the number of rollers.
Q3: Can BUHL units be used in wet or corrosive environments?
A: Yes. The 304 stainless steel body and SUS440C main ball provide good corrosion resistance, making BUHL units suitable for food processing, pharmaceutical, and outdoor applications.
Q4: How do I install a BUHL unit?
A: BUHL units are threaded into a mounting hole using the integrated hex-head stud. Ensure the threaded hole is clean and the stud is tightened securely. The hex head allows for easy installation and removal with a standard wrench.
Q5: What is the maximum operating temperature?
A: The BUHL series can operate within a temperature range of -30°C to +100°C.
