Stud Mound Fine Machined Ball Transfer Unit D-3H
The D-3H is a stud mount fine machined ball transfer unit with a 9.525 mm diameter ball, rated for 7 kg working load and 8 kg maximum load. It is mounted via an M6 stud into a worktable or deck plate, allowing smooth 360-degree movement of flat, smooth objects such as trays. The unit weighs 42 g and is available with a nylon, steel or stainless steel main ball in a steel or stainless steel case.
Product Overview
The D-3H is a stud mount fine machined ball transfer unit with a 9.525 mm diameter ball, rated for 7 kg working load and 8 kg maximum load. It is mounted via an M6 stud into a worktable or deck plate, allowing smooth 360-degree movement of flat, smooth objects such as trays. The unit weighs 42 g and is available with a nylon, steel or stainless steel main ball in a steel or stainless steel case.
Part of the D Series range, used in Sheet Metal and Press Shops.
Key Benefits
- Carries 7 kg per unit in normal service and 8 kg at peak load
- Stud mount with M6 diameter allows secure attachment to worktables and decks
- Fine machined ball seat ensures consistent rolling effort under light load
- Nylon ball option protects painted or polished surfaces from marking
- Stainless steel ball and case option for wet or washdown environments
Application Scenarios
- Transfer points on a flat worktable where trays or small components need to be repositioned
- Feeding systems in packaging machinery where small flat items are moved in any direction
- Processing machinery auxiliary tables requiring smooth manual alignment of parts
- Assembly stations where a fixture is rotated by hand between operations
- Curved work areas on band saws or router tables where omnidirectional movement is needed
Who It Is For
- Conveyor system integrators building low-load transfer points
- Material handling equipment builders designing worktables with manual repositioning
- Industrial distributors stocking ball transfer units by load rating
- Assembly line builders needing small units for manual alignment tasks
- Packaging machinery manufacturers integrating transfer points into feeding systems
Problems It Solves
- Small flat items that stick or drag when pushed across a fixed deck plate
- Worktables where parts must be rotated or repositioned without powered movement
- Manual alignment tasks where operators struggle with friction or resistance
- Mixed-use worktables where a single unit must handle both light and slightly heavier items
- Need for a compact, low-profile transfer point that does not interfere with tooling
Technical Features
- Fine machined ball and seat to reduce rolling resistance under light load
- Stud mount with M6 diameter for secure attachment to worktable or deck plate
- Main ball supplied in nylon, steel or stainless steel to suit the load surface
- Case supplied in steel or stainless steel for dry or wet environments
- Unit weight of 42 g for deck load and shipping calculations
Materials
- Nylon main ball for non marking contact with painted or polished surfaces
- Carbon steel ball and case for general industrial use
- Stainless steel ball and case for wet, washdown or corrosive areas
Quality Control
- Load capacity checked against the 7 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 nylon, steel and stainless steel
- Case material selected between steel and stainless steel
- Other D Series load ratings available where 7 kg is not the right size
Use Guide
- Divide the load by the number of units in contact to check the 7 kg per unit rating
- Keep peak and impact loading below the 8 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 | THD-3H |
|---|---|
| Mounting | Stud mount |
| Load Capacity | 7 kg |
| Max Load Capacity | 8 kg |
| Weight | 42 g |
| Ball Material | Nylon, steel or stainless steel |
| Case Material | Steel or stainless steel |
| Ball Diameter | 9.525 mm |
| Mount Diameter | M6 |
| Dimension | 15 x 27 mm |
Manufacturing Process
Step 1
Machining of the case and ball seat
Step 2
Ball and support ball assembly
Step 3
Stud threading and finishing
Step 4
Load check and packing
Compared With Other Options
| Flange mount ball transfer units | Stud mount bolts through the stud into the deck, allowing easier removal and replacement than a flange mount that requires clearance on the top side |
|---|---|
| Lower rated D Series units | The D-3H suits 7 kg loads, so lighter tasks 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 |
Stud Mound Fine Machined Ball Transfer Unit D-3H Questions
What load can one D-3H ball transfer unit carry?
The rated load capacity is 7 kg per unit and the maximum load capacity is 8 kg.
How is the D-3H mounted?
It is a stud mount unit, so it is bolted through the M6 stud into the deck plate.
Which ball material should I choose?
Nylon for surfaces that must not be marked, carbon steel for general use and stainless steel for wet or washdown areas.
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 D-3H weighs 42 g, which is used when calculating deck weight and shipping.
Can I get other load ratings in the same series?
Yes, the D Series covers other load ratings, so ask for the model that matches your load per unit.
Get a Price for Stud Mound Fine Machined Ball Transfer Unit D-3H
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.