Spring Loaded Press Mount Ball Transfer Unit KSF-25B
The KSF-25B is a spring loaded press mount ball transfer unit with a 25.4 mm diameter steel ball, rated for 100 kg working load and 150 kg maximum load. It is designed to be pressed into a hole in a deck plate so that flat, smooth items like trays can be moved and rotated in any direction by hand. The unit weighs 400 g and is available with a steel, galvanized steel, chrome plated, or stainless steel case.
Product Overview
The KSF-25B is a spring loaded press mount ball transfer unit with a 25.4 mm diameter steel ball, rated for 100 kg working load and 150 kg maximum load. It is designed to be pressed into a hole in a deck plate so that flat, smooth items like trays can be moved and rotated in any direction by hand. The unit weighs 400 g and is available with a steel, galvanized steel, chrome plated, or stainless steel case.
Part of the KS KSM Series range, used in Warehouse and Distribution Centres.
Key Benefits
- Carries 100 kg per unit in normal service and 150 kg at peak load
- Spring loaded design maintains ball contact under load and compensates for minor deck surface variations
- Press mount installs quickly into a pre-drilled hole without requiring bolts or flanges
- 25.4 mm diameter ball allows smooth movement of flat, rigid items like trays and panels
- Stainless steel case option for use in wet or corrosive environments
Application Scenarios
- Transfer points between two conveyor lines where product must change direction without powered diverters
- Feeding tables in packaging or processing machinery where trays are manually repositioned
- Assembly line workstations where a fixture needs to be rotated by hand
- Curved work surfaces on band saws or router tables where omnidirectional movement is required
- Flat deck sections in material handling systems where loads are moved laterally and rotated
Who It Is For
- Conveyor system integrators building transfer and rotation points into automated lines
- Material handling equipment builders designing feeding and processing tables
- Industrial distributors stocking ball transfer units by load and mounting type
- Assembly line builders needing low-friction rotation points for fixtures and jigs
- Production line engineers replacing worn or inconsistent units from multiple suppliers
Problems It Solves
- Loads that bind or jam when pushed across a fixed deck due to misalignment or uneven surfaces
- Transfer points where product must change direction but powered diverters are not required
- Manual repositioning of trays or panels that require rotation but not full mobility
- Inconsistent performance from ball transfer units sourced from multiple suppliers
- Deck surfaces that flex or warp under load, causing ball contact loss
Technical Features
- Spring loaded mechanism maintains ball contact under load and compensates for deck deflection
- Press mount design fits into a hole in the deck plate without bolts or flanges
- 25.4 mm diameter steel ball allows smooth movement of flat, rigid items
- Case available in carbon steel, galvanized steel, chrome plated steel, or stainless steel (SUS304)
- Unit weight of 400 g for deck load and shipping calculations
Materials
- Carbon steel ball and case for general industrial use
- Galvanized steel case for improved corrosion resistance in humid environments
- Chrome plated steel case for wear resistance and a smoother finish
- Stainless steel (SUS304) case for wet, washdown, or corrosive environments
Quality Control
- Load capacity verified against the 100 kg rating before packing
- Ball rotation checked by hand for free movement in all directions
- Material grade confirmed against the case option ordered
Customization Options
- Case material selected between carbon steel, galvanized steel, chrome plated steel, and stainless steel (SUS304)
- Other KSF Series models available for different load ratings and diameters
- Ball material limited to steel in this model; no nylon or stainless steel ball option
Use Guide
- Divide the load by the number of units in contact to ensure the 100 kg per unit rating is not exceeded
- Keep peak and impact loading below the 150 kg maximum load figure
- Press the unit into a hole with a diameter of 61.5 mm to ensure a secure fit
- Use stainless steel case where the deck is exposed to moisture or cleaning agents
- Do not use on uneven or soft-bottomed items such as cloth-wrapped loads
Specifications
| Model No | KSF-25B |
|---|---|
| Mounting | Press mount |
| Load Capacity | 100 kg |
| Max Load Capacity | 150 kg |
| Weight | 400 g |
| Ball Diameter | 25.4 mm |
| Ball Material | Steel |
| Case Material | Steel, Galvanized Steel, Chrome Plated Steel, Stainless Steel (SUS304) |
Manufacturing Process
Step 1
Machining of the case and spring housing
Step 2
Assembly of the steel ball and spring mechanism
Step 3
Press fit installation into the case
Step 4
Final inspection and packing
Compared With Other Options
| Flange mount ball transfer units | Press mount installs faster with no bolts, but flange mount allows easier removal for maintenance |
|---|---|
| Lower rated KSF Series units | The KSF-25B suits 100 kg loads, so lighter applications are better served by smaller units that roll with less effort |
| Plain conveyor rollers | Ball transfer units allow movement in any direction, while rollers only move product along one axis |
Spring Loaded Press Mount Ball Transfer Unit KSF-25B Questions
What load can one KSF-25B ball transfer unit carry?
The rated load capacity is 100 kg per unit and the maximum load capacity is 150 kg.
How is the KSF-25B mounted?
It is a press mount unit, so it is pressed into a hole in the deck plate without bolts or flanges.
Which case material should I choose?
Carbon steel for general use, galvanized steel for humid environments, chrome plated steel for wear resistance, and stainless steel (SUS304) for wet or corrosive areas.
Is a stainless steel version available?
Yes, the case can be supplied in stainless steel (SUS304).
How much does the unit weigh?
Each KSF-25B weighs 400 g, which is used when calculating deck weight and shipping.
Can I get other load ratings in the same series?
Yes, the KSF Series includes other load ratings, so ask for the model that matches your load per unit.
Get a Price for Spring Loaded Press Mount Ball Transfer Unit KSF-25B
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.