BCHF Ball Transfer Unit | Flange Mount Lock Nut Type | 304 Stainless Steel | JDF
The BCHF Series Ball Transfer Unit is a flange-mounted omnidirectional load-bearing unit with a 440C stainless steel main ball and 304 stainless steel body. The main ball is surrounded by multiple sub-balls, creating a small friction coefficient that allows workpieces to be transported with minimal force in any 360° direction. The flange mounting design with lock nut enables quick installation and easy replacement, making it suitable for conveyor tables, transfer stations, and assembly lines where maintenance accessibility is important.
How to select the right BCHF 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.
Calculate the maximum spacing between units: divide the shortest edge of the load by 2.5.
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). BCHF39 (343 N) or BCHF48 (412 N) may be suitable depending on the actual number of supporting units.
Installation Notes:
Flange mount type: secure the unit to the mounting surface using the lock nut. Ensure the mounting hole is clean and the flange sits flush against the surface.
The lock nut allows for easy removal and replacement without special tools, reducing maintenance downtime.
For batch installation, a positioning template is recommended to ensure hole alignment.
BCHF units are suitable for horizontal mounting with the ball facing upward. Max speed: 1 m/s. Working temperature range: -20°C to +70°C.
Technical Specifications Table
| Model | O.D. D (mm) | L1 (mm) | H (mm) | t (mm) | P.C.D (mm) | a (mm) | d (mm) | Allowable Load N (kgf) |
|---|---|---|---|---|---|---|---|---|
| BCHF27 | 27 | 15 | 2.5 | 9.5 | 2 | 21 | 3.5 | 55 (5.6) |
| BCHF30 | 30 | 18 | 3.5 | 11.5 | 2 | 24 | 3.5 | 62 (6.3) |
| BCHF39 | 39 | 24 | 5.3 | 14.7 | 3 | 31.5 | 4.5 | 343 (35) |
| BCHF48 | 48 | 30 | 6.3 | 18.7 | 4 | 39 | 5.5 | 412 (42) |
Typical Applications
The BCHF Series Ball Transfer Unit is widely used in the following applications:
Assembly Lines & Workstations: Multi-directional transfer and positioning of workpieces between stations, with flange mounting for easy replacement and maintenance
Conveyor Transfer Points: Direction changes at conveyor curves or intersections
Inspection & Packaging Stations: Free movement of workpieces on inspection or packaging tables
Mold Handling & Changing: 360° movement and positioning of molds on mold change carts
Logistics & Warehousing Equipment: Low-friction movement of heavy loads on transfer tables or storage racks
