Stud Mound Machined Ball Transfer Unit SP-45FL
The SP-45FL is a stud mount machined ball transfer unit with a 45 mm diameter ball, rated for 400 kg working load and 450 kg maximum load. It is designed to be mounted via a stud onto a worktable or deck plate, allowing flat, smooth objects like trays to be moved and rotated in any direction by hand. The unit weighs 1.15 kg and is available with a steel, stainless steel, or nylon main ball in a steel or galvanized, chrome-plated, or stainless steel case.
Product Overview
The SP-45FL is a stud mount machined ball transfer unit with a 45 mm diameter ball, rated for 400 kg working load and 450 kg maximum load. It is designed to be mounted via a stud onto a worktable or deck plate, allowing flat, smooth objects like trays to be moved and rotated in any direction by hand. The unit weighs 1.15 kg and is available with a steel, stainless steel, or nylon main 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 400 kg per unit in normal service and 450 kg at peak load
- Stud mount provides secure attachment to a worktable or deck plate with two threaded holes
- 45 mm diameter ball allows smooth movement of heavy flat items across a surface
- Steel, stainless steel, or nylon ball options suit different load surface requirements
- Steel, galvanized, chrome-plated, or stainless steel case options for varied environmental conditions
Application Scenarios
- Transfer points between two conveyor lines running at right angles in a packaging line
- Worktables in a processing or assembly system where a heavy tray must be repositioned by hand
- Feeding systems where flat components need to be aligned or rotated before machining
- Curved work surfaces on band saws or router tables requiring omnidirectional movement
- Auxiliary equipment in packaging machinery where trays are moved between stations
Who It Is For
- Conveyor system integrators building high-load transfer points into automated lines
- Industrial equipment builders designing worktables and processing stations
- Packaging machinery manufacturers needing reliable ball transfer units for tray handling
- Assembly line builders requiring manual repositioning of heavy flat components
- Industrial distributors stocking ball transfer units by load rating and mounting type
Problems It Solves
- Heavy flat items that jam or drag when pushed across a fixed deck plate
- Transfer points where product must change direction without powered diverters
- Worktables where a load must be rotated or repositioned by hand under high load
- Systems requiring consistent load capacity across multiple units without mixing suppliers
- Work surfaces where surface marking from metal balls must be avoided
Technical Features
- 45 mm diameter ball for high load capacity and smooth omnidirectional movement
- Stud mount with two threaded holes for secure attachment to a worktable
- Fine machined ball seat and ball housing to maintain consistent rolling effort
- Ball and case materials selected independently to suit the application environment
- Overall dimensions of 62 mm diameter and 99 mm height for deck space planning
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, polished, or sensitive surfaces
- Galvanized or chrome-plated case for improved corrosion resistance in moderate environments
Quality Control
- Load capacity tested against the 400 kg working load rating before packing
- Ball rotation checked by hand for free movement in all directions
- Material grade confirmed against the ball and case option ordered
- Stud mount threads inspected for correct size and depth
Customization Options
- Ball material selected between steel, stainless steel, and nylon
- Case material selected between steel & galvanized, steel & chrome plating, and stainless steel
- Other SP Series load ratings available where 400 kg is not the right size
Use Guide
- Divide the total load by the number of units in contact to ensure no unit exceeds 400 kg working load
- Keep peak and impact loading below the 450 kg maximum load figure
- Mount the unit on a flat, rigid deck plate so all balls sit at the same height
- Choose nylon ball where the load surface must not be marked
- Choose stainless steel ball and case where the deck is exposed to moisture or cleaning
Specifications
| Model No | SP-45FL |
|---|---|
| Mounting | Stud mount |
| Load Capacity | 400 kg |
| Max Load Capacity | 450 kg |
| Weight | 1.15 kg |
| Ball Diameter | 45 mm |
| Mount Diameter | M20 mm |
| Ball Material | Steel, stainless steel, nylon |
| Case Material | Steel & galvanized, steel & chrome plating, stainless steel |
| Dimensions | 62 mm diameter x 99 mm height |
Manufacturing Process
Step 1
Machining of the case and ball seat to precise dimensions
Step 2
Assembly of the ball and support components with proper clearance
Step 3
Drilling and threading of the stud mount for secure attachment
Step 4
Final inspection of ball rotation and load capacity before packing
Compared With Other Options
| Flange mount ball transfer units | Stud mount allows direct attachment to a worktable with threaded holes, while flange mount requires a separate flange and bolted connection |
|---|---|
| Press fit ball transfer units | Stud mount is more secure and can be removed for maintenance, while press fit units are faster to install but harder to replace |
| Lower rated SP Series units | The SP-45FL suits 400 kg loads, so lighter applications are better served by a smaller unit with lower rolling resistance |
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Stud Mound Machined Ball Transfer Unit SP-45FL Questions
What load can one SP-45FL ball transfer unit carry?
The rated load capacity is 400 kg per unit and the maximum load capacity is 450 kg.
How is the SP-45FL mounted?
It is a stud mount unit, so it is attached via two threaded holes in the stud to a worktable or deck plate.
Which ball material should I choose?
Steel for general use, stainless steel for wet or corrosive areas, nylon for non-marking contact with sensitive 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-45FL weighs 1.15 kg, which is used for deck load and shipping calculations.
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 Stud Mound Machined Ball Transfer Unit SP-45FL
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.



