Press Mount High Load Ball Transfer Unit IS-51
The IS-51 is a press mount high load ball transfer unit with a 51 mm diameter steel ball, rated for 250 kg working load and 300 kg maximum load. It is designed to be pressed into a machined hole in a deck plate, allowing flat, smooth objects like trays to be moved in any direction by hand. The unit weighs 6.8 kg and is available with a steel, galvanized steel, chrome plated, or stainless steel case. It has a mounting diameter of 107 mm and a height of 70 mm.
Product Overview
The IS-51 is a press mount high load ball transfer unit with a 51 mm diameter steel ball, rated for 250 kg working load and 300 kg maximum load. It is designed to be pressed into a machined hole in a deck plate, allowing flat, smooth objects like trays to be moved in any direction by hand. The unit weighs 6.8 kg and is available with a steel, galvanized steel, chrome plated, or stainless steel case. It has a mounting diameter of 107 mm and a height of 70 mm.
Part of the IA IS Series range, used in Warehouse and Distribution Centres.
Key Benefits
- Carries 250 kg per unit in normal service and 300 kg at peak load
- Press mount design allows for fast installation with no bolts or flanges
- 51 mm diameter steel ball provides stable rolling under heavy static and dynamic loads
- Case options in steel, galvanized steel, chrome plated, or stainless steel suit different environmental conditions
- Compact 107 mm diameter mounting hole fits standard deck plate machining
- Omni-directional movement allows product rotation and transfer between perpendicular lines
Application Scenarios
- Transfer points between two conveyor lines running at right angles in a packaging line
- Loading tables where heavy trays are manually repositioned before feeding into a machine
- Assembly stations requiring precise alignment of flat components by hand
- Processing machinery feed zones where trays must be shifted laterally without powered movement
- Curved work surfaces on band saws or router tables where continuous material flow is needed
Who It Is For
- Conveyor system integrators building high load transfer points
- Material handling equipment builders designing heavy-duty transfer decks
- Packaging line designers needing reliable manual repositioning of trays
- Industrial distributors stocking ball transfer units by load and mounting type
- Production line builders integrating manual alignment points into automated systems
Problems It Solves
- Heavy trays or components that cannot be moved across a fixed deck due to high friction
- Transfer points where product must change direction without powered diverters
- Manual repositioning of flat items that require precise alignment at a workstation
- Lack of consistent load capacity across multiple suppliers in a single system
- Deck plates that wear out quickly due to uncontrolled ball movement or poor mounting
Technical Features
- 51 mm diameter steel ball for high load capacity and durability
- Press mount design with a 107 mm mounting diameter for direct insertion into deck plate
- Steel case with optional galvanization, chrome plating, or stainless steel finish
- Two threaded holes in the bearing surround for secure attachment to the worktable
- Overall dimensions of 107 mm diameter and 70 mm height for consistent deck layout
- Omni-directional ball movement allows 360-degree transfer of flat, smooth objects
Materials
- Carbon steel ball and case for general industrial use
- Galvanized steel case for improved corrosion resistance in humid environments
- Chrome plated case for wear resistance and a smooth finish
- Stainless steel case for washdown, food, or corrosive environments
Quality Control
- Load capacity tested against the 250 kg working load rating
- Ball rotation checked by hand for free movement in all directions
- Mounting diameter verified at 107 mm to ensure fit in standard deck holes
- Material grade confirmed against the case option ordered
- Unit weight checked at 6.8 kg for shipping and deck load calculations
Customization Options
- Case material selected between steel, galvanized steel, chrome plated, or stainless steel
- Ball material is steel only, as per specification
- Other IS Series load ratings available where 250 kg is not the right size
Use Guide
- Ensure the deck plate has a 107 mm diameter hole machined to the correct depth for press fit
- Divide the total load by the number of units in contact to stay within the 250 kg per unit rating
- Keep peak and impact loading below the 300 kg maximum load figure
- 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 | IS-51 |
|---|---|
| Mounting | Press mount |
| Load Capacity | 250 kg |
| Max Load Capacity | 300 kg |
| Weight | 6.8 kg |
| Ball Diameter | 51 mm |
| Ball Material | Steel |
| Case Material | Steel, galvanized steel, chrome plated, stainless steel |
| Mounting Diameter | 107 mm |
| Height | 70 mm |
Manufacturing Process
Step 1
Machining of the case and mounting hole to 107 mm diameter
Step 2
Assembly of the 51 mm steel ball and bearing cage
Step 3
Drilling of two threaded holes in the bearing surround
Step 4
Finishing of the case surface (galvanization, chrome plating, or polishing if stainless steel)
Step 5
Final weight and load check before packing
Compared With Other Options
| Flange mount ball transfer units | Press mount units install faster with no bolts but are harder to remove for service or replacement |
|---|---|
| Lower rated IS Series units | The IS-51 suits 250 kg loads, so lighter applications are better served by smaller units that roll with less effort |
| Swivel casters | Press mount ball transfer units are fixed to a deck and do not move on the floor, unlike casters used for mobile equipment |
Press Mount High Load Ball Transfer Unit IS-51 Questions
What load can one IS-51 ball transfer unit carry?
The rated load capacity is 250 kg per unit and the maximum load capacity is 300 kg.
How is the IS-51 mounted?
It is a press mount unit, so it is pressed into a 107 mm diameter hole in the deck plate.
Which case material should I choose?
Steel for general use, galvanized steel for humidity, chrome plated for wear resistance, 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 IS-51 weighs 6.8 kg, which is used for deck load and shipping calculations.
Can I get other load ratings in the same series?
Yes, the IS Series covers other load ratings, so ask for the model that matches your load per unit.
Get a Price for Press Mount High Load Ball Transfer Unit IS-51
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.