Press Mount Machined Ball Transfer Unit SP-15
The SP-15 is a press mount machined ball transfer unit with a 15.875 mm diameter ball, rated for 40 kg working load and 50 kg maximum load. It is designed to be pressed into a deck plate so that flat, smooth objects like trays can be moved in any direction by hand. The unit weighs 60 g and is available with a steel, stainless steel or nylon ball in a steel, galvanized, chrome plated or stainless steel case.
Product Overview
The SP-15 is a press mount machined ball transfer unit with a 15.875 mm diameter ball, rated for 40 kg working load and 50 kg maximum load. It is designed to be pressed into a deck plate so that flat, smooth objects like trays can be moved in any direction by hand. The unit weighs 60 g and is available with a steel, stainless steel or nylon ball in a steel, 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 50 kg at peak load
- Press mount installs directly into a deck plate with no additional mounting hardware
- Fine machined ball and seat allow smooth movement under load
- Steel or stainless steel case options for dry or wet environments
- Nylon ball option protects painted or polished surfaces from marking
Application Scenarios
- Transfer points between two conveyor lines where product must change direction without powered diverters
- Feeding tables in packaging machinery where trays are moved manually in any direction
- Processing workbenches where flat components are repositioned during assembly
- Curved work surfaces on band saws or router tables requiring omni-directional movement
- Assembly stations where a fixture is rotated by hand between operations
Who It Is For
- Conveyor system integrators building transfer points into material handling lines
- Industrial equipment builders designing workbenches with manual repositioning
- Packaging machinery manufacturers needing small load transfer units
- Assembly line builders integrating manual rotation points into production stations
- Industrial distributors stocking ball transfer units by load rating and mount type
Problems It Solves
- Flat objects that stick or drag when pushed across a fixed deck plate
- Transfer points where product must change direction without powered components
- Workbenches where a load must be repositioned by hand without friction or binding
- Mixed-use decks where a single unit must handle both light and moderate loads
- Work surfaces where marking from metal balls must be avoided
Technical Features
- Machined ball and seat for consistent rolling under load
- Press mount design fits into a pre-drilled hole in the deck plate
- Ball diameter of 15.875 mm (5/8 inch) for compatibility with standard deck hole sizes
- Mounting diameter of 24 mm (0.94 inch) to match common hole patterns
- Unit weight of 60 g for deck load and shipping calculations
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
Quality Control
- Load capacity checked against the 40 kg rating before packing
- Ball rotation checked by hand for free movement in all directions
- Material grade confirmed against the ball and case option ordered
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
Use Guide
- Divide the load by the number of units in contact to check the 40 kg per unit rating
- Keep peak and impact loading below the 50 kg maximum load figure
- Mount units on a flat deck plate so all balls sit at the same height
- Choose the nylon ball where the load surface must not be marked
- Choose stainless steel ball and case where the deck is washed down
Specifications
| Model No | SP-15 |
|---|---|
| Mounting | Press mount |
| Load Capacity | 40 kg |
| Max Load Capacity | 50 kg |
| Weight | 60 g |
| Ball Diameter | 15.875 mm / 5/8 inch |
| Mount Diameter | 24 mm / 0.94 inch |
| Ball Material | Steel, stainless steel, nylon |
| Case Material | Steel, galvanized, chrome plated, stainless steel |
Manufacturing Process
Step 1
Machining of the case and ball seat
Step 2
Ball and support ball assembly
Step 3
Press fit preparation for deck plate installation
Step 4
Load check and packing
Compared With Other Options
| Flange mount ball transfer units | Press mount installs faster and requires no bolts, but is harder to remove for service |
|---|---|
| Lower rated SP Series units | The SP-15 suits 40 kg loads, so lighter decks are better served by a smaller unit that rolls with less effort |
| Plain conveyor rollers | Ball transfer units allow movement in any direction, while rollers only move product along one axis |
Press Mount Machined Ball Transfer Unit SP-15 Questions
What load can one SP-15 ball transfer unit carry?
The rated load capacity is 40 kg per unit and the maximum load capacity is 50 kg.
How is the SP-15 mounted?
It is a press mount unit, so it is pressed into a pre-drilled hole in the deck plate.
Which ball material should I choose?
Steel for general use, stainless steel for wet or corrosive areas, nylon to protect 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-15 weighs 60 g, which is used when calculating deck weight and shipping.
Can I get other load ratings in the same series?
Yes, the SP Series covers other load ratings, so ask for the model that matches your load per unit.
Get a Price for Press Mount Machined Ball Transfer Unit SP-15
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.