Bolt Down Disk Mount High Load Ball Transfer Unit IA-25
The IA-25 is a bolt down disk mount high load ball transfer unit with a 25.4 mm diameter steel ball, rated for 130 kg working load and 150 kg maximum load. It is mounted using two screws through a disk base that fits into a clearance hole in a flat deck plate. The unit weighs 320 g and is available with a steel, galvanized steel, chrome plated steel, or stainless steel case. It enables omnidirectional movement of flat, smooth objects such as trays, pallets or sheet metal across a conveyor deck.
Product Overview
The IA-25 is a bolt down disk mount high load ball transfer unit with a 25.4 mm diameter steel ball, rated for 130 kg working load and 150 kg maximum load. It is mounted using two screws through a disk base that fits into a clearance hole in a flat deck plate. The unit weighs 320 g and is available with a steel, galvanized steel, chrome plated steel, or stainless steel case. It enables omnidirectional movement of flat, smooth objects such as trays, pallets or sheet metal across a conveyor deck.
Part of the IA IS Series range, used in Warehouse and Distribution Centres.
Key Benefits
- 130 kg working load and 150 kg maximum load per unit for heavy-duty handling
- Bolt down disk mount allows secure attachment with two screws and easy removal for maintenance
- 25.4 mm diameter steel ball provides stable rolling under high static and dynamic loads
- Steel, galvanized steel, chrome plated steel or stainless steel case options for different environmental conditions
- Compact 72 x 32 mm size fits into tight deck space without interfering with adjacent units
Application Scenarios
- Transfer points between two conveyor lines where product must be rotated or repositioned by hand
- Assembly line workstations where a heavy tray or fixture needs to be moved in any direction
- Sheet metal handling decks where flat blanks are repositioned before machining
- Packaging line feed tables where trays are aligned or turned without powered diverters
- Processing machinery auxiliary tables where tools or components are manually repositioned
Who It Is For
- Conveyor system integrators building high load transfer points into material handling lines
- Industrial equipment builders designing workstations with manual repositioning capability
- Warehouse automation contractors installing transfer decks for heavy trays or pallets
- Production line engineers needing consistent ball transfer units with known load ratings
- Industrial distributors stocking ball transfer units by load and mounting type
Problems It Solves
- Heavy loads that bind or jam when pushed across a fixed deck plate due to high rolling resistance
- Transfer points where product must change direction without a powered diverter or actuator
- Need for a reliable, removable mounting method that allows service or replacement without welding
- Inconsistent performance when using mixed ball transfer units from different suppliers
- Lack of a single source for high load ball transfer units with matching shaft diameter and mounting pattern
Technical Features
- Omnidirectional load-bearing spherical ball inside a restraining fixture for 360-degree movement
- 25.4 mm diameter steel ball with fine machined seat to maintain rolling efficiency under load
- Bolt down disk mount with two screw holes for secure attachment to deck plate
- Mounting diameter of 58 mm to fit standard clearance holes in deck plates
- Unit weight of 320 g for deck load and shipping weight calculations
Materials
- Carbon steel ball and case for general industrial use
- Galvanized steel case for increased corrosion resistance in humid environments
- Chrome plated steel case for improved wear resistance and appearance
- Stainless steel case for wet, washdown, or corrosive environments
Quality Control
- Load capacity verified against the 130 kg working load before packing
- Ball rotation checked by hand for free movement in all directions
- Material grade confirmed against the case option ordered
- Mounting holes checked for correct diameter and alignment
Customization Options
- Case material selected between steel, galvanized steel, chrome plated steel, and stainless steel
- Ball material is steel only, as specified in the source text
- Other IA Series models available for different load ratings and mounting styles
Use Guide
- Divide the total load by the number of units in contact to ensure no more than 130 kg per unit under normal use
- Keep peak or impact loading below the 150 kg maximum load capacity
- Mount the unit on a flat deck plate so all balls sit at the same height and roll smoothly
- Use the galvanized or stainless steel case in wet or corrosive environments
- Avoid using on surfaces with uneven or soft bottoms such as cloth-wrapped items
Specifications
| Model No | IA-25 |
|---|---|
| Mounting | Bolt down disk mount |
| Load Capacity | 130 kg |
| Max Load Capacity | 150 kg |
| Weight | 320 g |
| Ball Diameter | 25.4 mm |
| Ball Material | Steel |
| Case Material | Steel, galvanized steel, chrome plated steel, stainless steel |
| Mount Diameter | 58 mm |
| Dimensions | 72 x 32 mm |
Manufacturing Process
Step 1
Machining of the case and disk base
Step 2
Assembly of the steel ball and support components
Step 3
Drilling and finishing of the two mounting screw holes
Step 4
Load test verification against the 130 kg working load
Step 5
Final inspection and packing
Compared With Other Options
| Press fit ball transfer units | Bolt down disk mount allows removal and replacement without damaging the deck, while press fit units are faster to install but harder to service |
|---|---|
| Lower load rated IA Series units | The IA-25 is suited for 130 kg loads, so lighter applications may benefit from a smaller unit with less rolling resistance |
| Swivel casters | Ball transfer units are designed for deck-mounted use and cannot be used as floor casters for mobile equipment |
Related Products
Bolt Down Disk Mount High Load Ball Transfer Unit IA-25 Questions
What load can one IA-25 ball transfer unit carry?
The rated load capacity is 130 kg per unit and the maximum load capacity is 150 kg.
How is the IA-25 mounted?
It is a bolt down disk mount unit, secured with two screws through the disk base into the deck plate.
Which case material should I choose?
Choose steel for general use, galvanized steel for humid environments, chrome plated steel for wear resistance, or stainless steel for washdown or corrosive areas.
Is a stainless steel version available?
Yes, the case can be supplied in stainless steel.
How much does the unit weigh?
Each IA-25 weighs 320 g, which is used for deck load and shipping calculations.
Can I get other load ratings in the same series?
Yes, the IA Series includes other load ratings, so ask for the model that matches your load per unit.
Get a Price for Bolt Down Disk Mount High Load Ball Transfer Unit IA-25
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.



