Downward Ball Transfer Unit UK-38
The UK-38 is a downward ball transfer unit with a 38.1 mm diameter steel ball, rated for 200 kg working load and 250 kg maximum load. It mounts through a downward flange onto a deck plate or workbench, allowing flat, smooth objects like trays to be moved and rotated in any direction by hand. The unit weighs 2.9 kg and is available with a steel, galvanized steel, chrome-plated steel, or stainless steel case. It features two threaded holes around the bearing for secure attachment to a work surface.
Product Overview
The UK-38 is a downward ball transfer unit with a 38.1 mm diameter steel ball, rated for 200 kg working load and 250 kg maximum load. It mounts through a downward flange onto a deck plate or workbench, allowing flat, smooth objects like trays to be moved and rotated in any direction by hand. The unit weighs 2.9 kg and is available with a steel, galvanized steel, chrome-plated steel, or stainless steel case. It features two threaded holes around the bearing for secure attachment to a work surface.
Part of the IK UK Series range, used in Warehouse and Distribution Centres.
Key Benefits
- 200 kg working load and 250 kg maximum load per unit for heavy-duty handling
- Downward mount fixes the unit from below, allowing full deck access and stable mounting
- 38.1 mm diameter steel ball enables smooth omnidirectional movement under load
- Available in steel, galvanized steel, chrome-plated steel, or stainless steel case for different environments
- Two screw holes around the bearing allow secure attachment to worktables or benches
Application Scenarios
- Transfer points on a curved workbench or router table where trays need to be repositioned
- Assembly lines where flat components must be rotated or aligned by hand
- Packaging machinery where trays are moved between stations without powered conveyance
- Feeding systems for processing machinery requiring manual reorientation of flat items
- Workbenches in machining or fabrication areas where heavy flat parts are adjusted
Who It Is For
- Conveyor system integrators building manual transfer points into automated lines
- Industrial equipment builders designing workbenches with adjustable positioning
- Assembly line engineers needing manual rotation of flat components at workstations
- Material handling equipment makers integrating ball transfer units into processing tables
- Industrial distributors stocking downward ball transfer units by load and mounting type
Problems It Solves
- Manual repositioning of heavy flat items that cannot be rotated on fixed rollers
- Transfer points where product must change direction without powered diverters
- Workbenches that require stable, load-bearing support for heavy flat parts during assembly
- Mounting systems where a downward fix is needed to avoid interference with moving parts
- Work surfaces where a secure attachment method is required to prevent unit movement
Technical Features
- 38.1 mm diameter steel ball for high load capacity and smooth rolling
- Downward mount with flange and two screw holes for secure attachment
- Steel case with options for galvanizing, chrome plating, or stainless steel finish
- 38.1 mm ball diameter matches standard 1.5-inch roller sizes for compatibility
- Unit weight of 2.9 kg for deck load and shipping planning
Materials
- Carbon steel ball and case for general industrial use
- Galvanized steel case for improved corrosion resistance in damp environments
- Chrome-plated steel case for wear resistance and appearance
- Stainless steel case (SUS304) for washdown, food, or corrosive environments
Quality Control
- Load capacity verified against the 200 kg working load rating before packing
- Ball rotation checked by hand for free movement in all directions
- Material grade confirmed against the case material option ordered
- Mounting holes inspected for correct alignment and thread integrity
Customization Options
- Case material selected between carbon steel, galvanized steel, chrome-plated steel, or stainless steel
- Ball material is steel, with no nylon option available
- Other UK Series models available for different load ratings or mounting styles
Use Guide
- Ensure the load is distributed evenly across multiple units to stay within the 200 kg per unit rating
- Keep peak and impact loading below the 250 kg maximum load capacity
- Mount the unit on a flat, rigid deck plate so the ball sits at the correct height
- Use stainless steel case in wet or washdown environments to prevent corrosion
- Avoid using on surfaces with uneven or soft bottoms such as cloth-wrapped items
Specifications
| Model No | UK-38 |
|---|---|
| Mounting | Downward mount |
| Load Capacity | 200 kg |
| Max Load Capacity | 250 kg |
| Weight | 2.9 kg |
| Ball Diameter | 38.1 mm |
| Mount Diameter | 58 mm |
| Ball Material | Steel |
| Case Material | Steel, galvanized steel, chrome-plated steel, stainless steel |
Manufacturing Process
Step 1
Machining of the downward flange and case body
Step 2
Assembly of the steel ball and bearing support
Step 3
Drilling and threading of two mounting holes around the bearing
Step 4
Surface treatment applied based on case material (galvanizing, chrome plating, or stainless steel)
Step 5
Final load check and packing
Compared With Other Options
| Upward ball transfer units | Downward mount allows the unit to be fixed from below, leaving the deck surface unobstructed, while upward units are mounted from above and may interfere with moving parts |
|---|---|
| Press fit ball transfer units | Downward mount with screw holes provides a more secure attachment than press fit, which relies on friction and can loosen under vibration |
| Lower rated UK Series units | The UK-38 suits 200 kg loads, so lighter applications may benefit from a smaller unit with less rolling resistance |
Related Products
Downward Ball Transfer Unit UK-38 Questions
What load can one UK-38 ball transfer unit carry?
The rated load capacity is 200 kg per unit and the maximum load capacity is 250 kg.
How is the UK-38 mounted?
It is a downward mount unit, fixed from below using two screw holes around the bearing.
Which case material should I choose?
Carbon steel for general use, galvanized steel for damp areas, chrome-plated steel for wear resistance, stainless steel (SUS304) for washdown or corrosive environments.
Is a stainless steel version available?
Yes, the case can be supplied in stainless steel (SUS304).
How much does the unit weigh?
Each UK-38 weighs 2.9 kg, which is used for deck load and shipping calculations.
Can I get other load ratings in the same series?
Yes, the UK Series includes other models with different load ratings and mounting types.
Get a Price for Downward Ball Transfer Unit UK-38
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.



