Press Mount Machined Ball Transfer Unit SP-12
The SP-12 is a press mount machined ball transfer unit with a 12 mm diameter ball, rated for 25 kg working load and 30 kg maximum load. It is designed to be pressed into a hole in a flat deck plate so that a light tray, panel or small container can be moved and rotated in any direction by hand. The unit weighs 30 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-12 is a press mount machined ball transfer unit with a 12 mm diameter ball, rated for 25 kg working load and 30 kg maximum load. It is designed to be pressed into a hole in a flat deck plate so that a light tray, panel or small container can be moved and rotated in any direction by hand. The unit weighs 30 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 25 kg per unit in normal service and 30 kg at peak load
- Press mount fits into a pre-drilled hole in the deck plate for a flush installation
- Fine machined ball and seat allow smooth rotation under light static load
- Steel, stainless steel or nylon ball options suit different surface protection needs
- Steel, galvanized, chrome plated or stainless steel case options suit different environment conditions
Application Scenarios
- Transfer points between two short conveyor lines where light trays need to be rotated
- Assembly stations where a small panel is turned by hand between operations
- Feeding systems for packaging machinery handling flat, smooth items
- Processing tables where a tray is moved across a work surface in any direction
- Curved work surfaces on band saws or router tables requiring omnidirectional movement
Who It Is For
- Conveyor builders integrating low load transfer points into a line
- Equipment makers building feeding or processing tables for light components
- Packaging machinery suppliers needing small omnidirectional transfer units
- Industrial distributors stocking ball transfer units by load and size
- Production line builders requiring compact, low-profile transfer points
Problems It Solves
- Light loads that stick or drag when pushed across a fixed deck plate
- Transfer points where product must change direction without powered diverters
- Operators struggling to rotate a small tray or panel by hand at the end of a line
- Need for a compact unit that fits into a tight space without protruding above the deck
- Requirement for a unit that can be installed quickly with a press fit rather than bolts
Technical Features
- Fine machined ball and seat rather than a pressed or stamped housing
- Press mount design fits into a pre-drilled hole in the deck plate
- Main ball supplied in steel, stainless steel or nylon to suit the load surface
- Case supplied in steel, galvanized steel, chrome plated steel or stainless steel
- Unit weight of 30 g for deck load and shipping calculations
Materials
- Steel ball for general industrial use with moderate wear resistance
- Stainless steel ball for wet or corrosive environments
- Nylon ball to protect painted or polished surfaces from marking
- Steel case for standard dry environments
- Galvanized steel case for improved corrosion resistance
- Chrome plated steel case for a smoother surface and better wear resistance
- Stainless steel case for washdown, food handling or high corrosion areas
Quality Control
- Load capacity checked against the 25 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 25 kg is not the right size
Use Guide
- Divide the load by the number of units in contact to check the 25 kg per unit rating
- Keep peak and impact loading below the 30 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-12 |
|---|---|
| Mounting | Press mount |
| Load Capacity | 25 kg |
| Max Load Capacity | 30 kg |
| Weight | 30 g |
| Ball Diameter | 12 mm |
| Mount Diameter | 18 mm |
| Ball Material | Steel, stainless steel, nylon |
| Case Material | Steel, galvanized, chrome plated, stainless steel |
| Dimensions | 23 mm x 15.5 mm |
Manufacturing Process
Step 1
Machining of the case and ball seat
Step 2
Ball and support ball assembly
Step 3
Press fit preparation and finishing
Step 4
Load check and packing
Compared With Other Options
| Flange mount ball transfer units | Press mount fits flush into the deck and requires no bolts, while flange mount allows easier removal for service |
|---|---|
| Lower rated SP Series units | The SP-12 suits 25 kg loads, so lighter applications 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-12 Questions
What load can one SP-12 ball transfer unit carry?
The rated load capacity is 25 kg per unit and the maximum load capacity is 30 kg.
How is the SP-12 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-12 weighs 30 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-12
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.