Spring Loaded Press Mount Ball Transfer Unit KSF-15
The KSF-15 is a spring loaded press mount ball transfer unit with a 15.875 mm diameter steel ball, rated for 50 kg working load and 60 kg maximum load. It is designed to be pressed into a 28 mm diameter hole in a flat deck plate, allowing smooth 360-degree movement of flat, smooth objects like trays. The unit weighs 130 g and is available in carbon steel, galvanized steel, chrome plated steel or stainless steel (SUS304) cases with a steel ball.
Product Overview
The KSF-15 is a spring loaded press mount ball transfer unit with a 15.875 mm diameter steel ball, rated for 50 kg working load and 60 kg maximum load. It is designed to be pressed into a 28 mm diameter hole in a flat deck plate, allowing smooth 360-degree movement of flat, smooth objects like trays. The unit weighs 130 g and is available in carbon steel, galvanized steel, chrome plated steel or stainless steel (SUS304) cases with a steel ball.
Part of the KS KSM Series range, used in Warehouse and Distribution Centres.
Key Benefits
- 50 kg working load and 60 kg maximum load per unit for light to medium duty transfer points
- Spring loaded design maintains consistent ball contact under varying load and deck deflection
- Press mount installation allows fast, secure fit into a 28 mm hole without bolts or flanges
- Steel ball and case options suit general industrial environments and washdown areas
- Compact 35 x 36 mm size fits into tight deck spaces without interfering with adjacent units
Application Scenarios
- Transfer points between two conveyor lines where product must rotate freely without powered guidance
- Feeding stations on packaging machinery where trays are manually aligned and rotated
- Processing tables in assembly lines where flat components need to be repositioned by hand
- Curved work surfaces on band saws or router tables where continuous directional movement is required
- Conveyor decks with limited space where bolted flange mounts are not practical
Who It Is For
- Conveyor system integrators building low to medium load transfer and rotation points
- Packaging machinery builders needing compact, reliable ball transfer units
- Industrial equipment makers designing worktables with manual repositioning features
- Production line builders integrating hand-fed alignment points into automated systems
- Industrial distributors stocking ball transfer units by load and mounting type
Problems It Solves
- Flat objects that jam or drag when pushed across a fixed deck due to lack of omnidirectional movement
- Transfer points where product must change direction without powered diverters or complex mechanisms
- Decks with slight warping or deflection that cause standard ball units to bind or seize
- Space-constrained areas where flange or bolted mounts are too large for the application
- Applications requiring consistent ball contact under variable load without manual adjustment
Technical Features
- Spring loaded mechanism maintains ball pressure against the deck under load variation
- 15.875 mm diameter steel ball provides smooth rolling for flat, rigid objects
- Press mount design with 28 mm mounting diameter allows direct insertion into a prepared hole
- Housing available in carbon steel, galvanized steel, chrome plated steel or stainless steel (SUS304)
- Unit dimensions of 35 mm diameter x 36 mm height for compact deck integration
Materials
- Carbon steel ball and case for general industrial use in dry environments
- Galvanized steel case for improved corrosion resistance in moderate humidity
- Chrome plated steel case for enhanced wear resistance and appearance
- Stainless steel (SUS304) case and steel ball for washdown, food, or corrosive environments
Quality Control
- Load capacity verified against the 50 kg working load rating before packing
- Ball rotation checked by hand for free movement in all directions
- Spring tension tested to ensure consistent ball contact under load
- Material grade confirmed against the case and ball option ordered
- Unit weight measured to ensure 130 g tolerance
Customization Options
- Case material selected between carbon steel, galvanized steel, chrome plated steel or stainless steel (SUS304)
- Ball material is steel in all variants; no nylon or stainless steel ball option available
- Other KSF-15 load ratings not available; only the 50 kg working load unit is offered
Use Guide
- Ensure the deck plate has a 28 mm diameter hole for press fit installation
- Press the unit into the hole until the case is flush with the deck surface
- Do not exceed 50 kg per unit under normal operation and 60 kg as peak load
- Use only on flat, rigid surfaces such as trays or metal sheets; avoid soft or uneven bottoms
- Choose stainless steel case for washdown or corrosive environments
Specifications
| Model No | THKSF-15 |
|---|---|
| Mounting | Press mount |
| Load Capacity | 50 kg |
| Max Load Capacity | 60 kg |
| Weight | 130 g |
| Ball Diameter | 15.875 mm |
| Ball Material | Steel |
| Case Material | Carbon steel, galvanized steel, chrome plated steel, stainless steel (SUS304) |
| Mount Diameter | 28 mm |
| Dimensions | 35 x 36 mm |
Manufacturing Process
Step 1
Machining of the case body and press fit hole
Step 2
Assembly of the steel ball with spring loading mechanism
Step 3
Final inspection of ball movement and spring tension
Step 4
Surface treatment applied based on material option (galvanizing, chrome plating, or no coating)
Step 5
Packaging for shipping and storage
Compared With Other Options
| Flange mount ball transfer units | Press mount is faster to install and requires no bolts, but flange mount allows easier removal for maintenance |
|---|---|
| Non-spring loaded units | Spring loaded design maintains ball contact under deck deflection, while non-spring units may bind if the deck is uneven |
| Higher load rated ball transfer units | The KSF-15 is for 50 kg loads, so heavier applications require a larger unit with higher load capacity |
Spring Loaded Press Mount Ball Transfer Unit KSF-15 Questions
What is the load capacity of the KSF-15 ball transfer unit?
The working load capacity is 50 kg and the maximum load capacity is 60 kg.
How is the KSF-15 mounted?
It is a press mount unit, so it is pressed into a 28 mm diameter hole in the deck plate.
What materials are available for the case?
The case is available in carbon steel, galvanized steel, chrome plated steel, or stainless steel (SUS304).
Is a stainless steel version available?
Yes, the case can be supplied in stainless steel (SUS304) with a steel ball.
What is the ball diameter?
The ball diameter is 15.875 mm (5/8 inch).
How much does the unit weigh?
Each KSF-15 weighs 130 g, which is used for deck load and shipping calculations.
Get a Price for Spring Loaded Press Mount Ball Transfer Unit KSF-15
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.