Stud Mound Machined Ball Transfer Unit SP-15FL
The SP-15FL is a stud mount machined ball transfer unit with a 15.875 mm diameter ball, rated for 40 kg working load and 45 kg maximum load. It is designed to be mounted via an M8 stud onto a flat surface such as a workbench or conveyor deck, allowing smooth 360-degree movement of flat, smooth objects like trays. The unit weighs 85 g and is available with a steel, stainless steel, or nylon ball in a steel or galvanized, chrome-plated, or stainless steel case.
Product Overview
The SP-15FL is a stud mount machined ball transfer unit with a 15.875 mm diameter ball, rated for 40 kg working load and 45 kg maximum load. It is designed to be mounted via an M8 stud onto a flat surface such as a workbench or conveyor deck, allowing smooth 360-degree movement of flat, smooth objects like trays. The unit weighs 85 g and is available with a steel, stainless steel, or nylon ball in a steel or galvanized, chrome-plated, or stainless steel case.
Part of the SP Series range, used in Warehouse and Distribution Centres.
Key Benefits
- Carries 40 kg per unit in normal service and 45 kg at peak load
- Stud mount provides a secure, fixed attachment to workbenches or decks
- Fine machined ball and seat allow smooth, low-effort rotation under load
- Steel or stainless steel ball options suit industrial or washdown environments
- Nylon ball option prevents marking on painted or polished surfaces
Application Scenarios
- Workbenches in assembly lines where trays or components need to be repositioned by hand
- Conveyor transfer points where flat items must be rotated or aligned between lines
- Packaging machinery where trays are moved and turned during labeling or filling
- Processing tables for CNC routers or band saws requiring omnidirectional movement
- Feeding systems where flat parts are manually guided into position
Who It Is For
- Conveyor system integrators building manual transfer points into production lines
- Industrial equipment builders designing workstations with adjustable positioning
- Packaging machine manufacturers needing low-friction transfer points
- Assembly line designers integrating manual repositioning into high-speed lines
- Industrial distributors stocking ball transfer units by load and mounting type
Problems It Solves
- Flat items that jam or drag when pushed across a fixed deck due to lack of omnidirectional movement
- Workstations where components must be rotated or repositioned without powered actuators
- Manual alignment of trays or fixtures that require smooth, low-resistance movement
- Mounting systems that are loose or prone to vibration due to poor attachment
- Marking of painted or polished surfaces from hard steel balls during handling
Technical Features
- Machined ball and housing for consistent fit and low rolling resistance
- Stud mount with M8 diameter for secure attachment to flat surfaces
- Ball diameter of 15.875 mm (5/8 inch) for compatibility with standard fixtures
- Available in steel, stainless steel, or nylon ball materials to suit surface needs
- Case available in carbon steel, galvanized, chrome-plated, or stainless steel for environment matching
Materials
- Carbon steel ball and case for general industrial use
- Stainless steel ball and case for wet, washdown, or corrosive environments
- Nylon ball for non-marking contact with painted or polished surfaces
- Galvanized case for improved corrosion resistance in dry or mildly humid areas
- Chrome-plated case for enhanced wear resistance and appearance
Quality Control
- Load capacity verified against the 40 kg working load before packing
- Ball rotation tested by hand to ensure free movement in all directions
- Material grade confirmed against the ball and case option ordered
- Stud mount thread inspected for correct M8 size and fit
- Unit weight checked at 85 g for consistency
Customization Options
- Ball material selected between steel, stainless steel, and nylon
- Case material selected between steel, galvanized, chrome-plated, and stainless steel
- Other SP Series load ratings available where 40 kg is not the right size
- Stud mount can be adapted to other diameters if required
Use Guide
- Divide the total load by the number of units in contact to ensure no unit exceeds 40 kg working load
- Keep peak or impact loading below the 45 kg maximum load figure
- Mount the unit on a flat, rigid surface so all balls sit at the same height
- Use nylon ball where the load surface must not be marked
- Use stainless steel ball and case where the environment is wet or requires washdown
Specifications
| Model No | SP-15FL |
|---|---|
| Mounting | Stud mount |
| Mount Diameter | M8 mm |
| Load Capacity | 40 kg |
| Max Load Capacity | 45 kg |
| Weight | 85 g |
| Ball Diameter | 15.875 mm |
| Ball Material | Steel, stainless steel, nylon |
| Case Material | Steel, galvanized, chrome-plated, stainless steel |
| Dimensions | Dia 31 x 39 mm (L x W x H) |
Manufacturing Process
Step 1
Machining of the case and ball seat to precise tolerances
Step 2
Assembly of the ball and support components
Step 3
Drilling and threading of the stud mount
Step 4
Final inspection of ball rotation and load capacity
Step 5
Packaging for shipment
Compared With Other Options
| Flange mount ball transfer units | Stud mount is bolted directly to the surface and allows easier removal, while flange mount is fixed from above and requires a clearance hole |
|---|---|
| Press fit ball transfer units | Stud mount provides a more secure attachment and is easier to service or replace than a press-fit unit |
| Lower rated SP Series units | The SP-15FL suits 40 kg loads, so lighter applications are better served by a smaller unit with less rolling resistance |
Stud Mound Machined Ball Transfer Unit SP-15FL Questions
What load can one SP-15FL ball transfer unit carry?
The rated load capacity is 40 kg per unit and the maximum load capacity is 45 kg.
How is the SP-15FL mounted?
It is a stud mount unit, so it is attached via an M8 stud to a flat surface such as a workbench or deck plate.
Which ball material should I choose?
Steel for general use, stainless steel for wet or corrosive environments, nylon to prevent marking on painted or polished surfaces.
Is a stainless steel version available?
Yes, both the ball and the case can be supplied in stainless steel.
How much does the unit weigh?
Each SP-15FL weighs 85 g, which is used for deck load and shipping calculations.
Can I get other load ratings in the same series?
Yes, the SP Series includes other load ratings, so ask for the model that matches your load per unit.
Get a Price for Stud Mound Machined Ball Transfer Unit SP-15FL
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.