Press Mount Machined Ball Transfer Unit SP-22
The SP-22 is a press mount machined ball transfer unit with a 22.28 mm diameter ball, rated for 140 kg working load and 160 kg maximum load. It is designed to be pressed into a deck plate so that a flat, smooth object like a tray can be moved in any direction by hand. The unit weighs 185 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-22 is a press mount machined ball transfer unit with a 22.28 mm diameter ball, rated for 140 kg working load and 160 kg maximum load. It is designed to be pressed into a deck plate so that a flat, smooth object like a tray can be moved in any direction by hand. The unit weighs 185 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 140 kg per unit in normal service and 160 kg at peak load
- Press mount fixes the unit directly into a deck plate with no need for bolts or flanges
- Fine machined ball and seat allow smooth movement under heavy static load
- Steel, stainless steel or nylon ball options suit different surface protection needs
- Steel, galvanized, chrome plated or stainless steel case options suit various environmental conditions
Application Scenarios
- Transfer points between two conveyor lines where product must change direction without powered diverters
- Feeding tables in packaging machinery where flat trays are moved manually in any direction
- Processing workstations where a flat component is repositioned by hand on a workbench
- Assembly line stations where a fixture needs to be rotated or aligned without tools
- Curved work areas on band saws or router tables where omnidirectional movement is required
Who It Is For
- Conveyor system integrators building transfer points with minimal deck penetration
- Material handling equipment builders designing flat transfer decks for trays or panels
- Industrial distributors stocking ball transfer units by load rating and mounting type
- Assembly line builders needing low-friction manual repositioning at workstations
Problems It Solves
- Flat loads that stick or drag when pushed across a fixed deck plate
- Transfer points where product must change direction without powered components
- Workstations where a heavy flat item must be rotated or repositioned by hand
- Decks that require a flush surface with no protruding bolts or flanges
- Areas where a single unit must handle both light and heavy flat items without jamming
Technical Features
- Fine machined ball and seat rather than a pressed or stamped housing
- Press mount design allows direct insertion into a deck plate without additional fasteners
- Ball diameter of 22.28 mm (0.88 inch) for compatibility with standard deck hole sizes
- Mounting diameter of 36 mm (1.42 inch) to match common press fit hole specifications
- Unit weight of 185 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
- Galvanized or chrome plated case for improved corrosion resistance in moderate environments
Quality Control
- Load capacity checked against the 140 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 140 kg is not the right size
Use Guide
- Divide the load by the number of units in contact to check the 140 kg per unit rating
- Keep peak and impact loading below the 160 kg maximum load figure
- Press the unit into a deck plate with a hole sized to match the 36 mm mounting diameter
- Choose the 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-22 |
|---|---|
| Mounting | Press mount |
| Load Capacity | 140 kg |
| Max Load Capacity | 160 kg |
| Weight | 185 g |
| Ball Diameter | 22.28 mm |
| Mount Diameter | 36 mm |
| 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 and finishing
Step 4
Load check and packing
Compared With Other Options
| Flange mount ball transfer units | Press mount requires no bolts or flanges, giving a flush deck surface, but is harder to remove for service |
|---|---|
| Lower rated SP Series units | The SP-22 suits 140 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-22 Questions
What load can one SP-22 ball transfer unit carry?
The rated load capacity is 140 kg per unit and the maximum load capacity is 160 kg.
How is the SP-22 mounted?
It is a press mount unit, so it is pressed directly into a deck plate hole without bolts or flanges.
Which ball material should I choose?
Steel for general use, stainless steel for wet or washdown areas, nylon for non-marking contact with 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-22 weighs 185 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-22
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.