Stud Mound Fine Machined Ball Transfer Unit D-4H
The D-4H is a stud mount fine machined ball transfer unit with a 12.7 mm diameter ball, rated for 8 kg working load and 10 kg maximum load. It is mounted via an M8 stud hole and fits into a clearance hole in a flat deck plate. The unit weighs 55 g and is available with a nylon, steel or stainless steel main ball in a steel or stainless steel case.
Product Overview
The D-4H is a stud mount fine machined ball transfer unit with a 12.7 mm diameter ball, rated for 8 kg working load and 10 kg maximum load. It is mounted via an M8 stud hole and fits into a clearance hole in a flat deck plate. The unit weighs 55 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 8 kg per unit in normal service and 10 kg at peak load
- Stud mount with M8 diameter allows secure attachment to a deck plate using two screws
- Fine machined ball and seat reduce rolling effort under light static load
- Nylon ball option protects painted or polished surfaces from marking
- Stainless steel ball and case option for use in wet or washdown environments
Application Scenarios
- Transfer points on a flat deck where small trays or components need to be repositioned by hand
- Assembly line stations where a fixture must be rotated or shifted in any direction
- Feeding systems in packaging machinery where small flat items are moved between stations
- Processing tables where a component is aligned or turned during machining
- Conveyor transfer decks where a light load changes direction without powered diverters
Who It Is For
- Conveyor system integrators building low-load transfer and rotation points
- Material handling equipment builders designing small deck transfer zones
- Industrial distributors stocking ball transfer units by load rating and mount type
- Assembly line builders needing small, precise transfer points for light components
Problems It Solves
- Small loads that stick or drag when pushed across a fixed deck plate
- Transfer points where a light component must change direction without powered guidance
- Operators struggling to rotate or align a light fixture by hand at a work station
- Mixed-use decks where a single unit must handle both light and slightly heavier items
Technical Features
- Fine machined ball and seat rather than a pressed or stamped housing
- Stud mount with M8 diameter and two screw holes for secure attachment
- 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 55 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 decks
- Stainless steel ball and case for wet, washdown or corrosive areas
Quality Control
- Load capacity checked against the 8 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 8 kg is not the right size
Use Guide
- Divide the load by the number of units in contact to check the 8 kg per unit rating
- Keep peak and impact loading below the 10 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-4H |
|---|---|
| Mounting | Stud mount |
| Load Capacity | 8 kg |
| Max Load Capacity | 10 kg |
| Weight | 55 g |
| Ball Material | Nylon, steel or stainless steel |
| Case Material | Steel or stainless steel |
| Ball Diameter | 12.7 mm |
| Mount Diameter | M8 |
| Dimension | 20 x 30 mm |
Manufacturing Process
Step 1
Machining of the case and ball seat
Step 2
Ball and support ball assembly
Step 3
Stud drilling and finishing
Step 4
Load check and packing
Compared With Other Options
| Flange mount ball transfer units | Stud mount uses two screws for attachment and allows easier removal, while flange mount bolts from above and is more secure for higher loads |
|---|---|
| Lower rated D Series units | The D-4H suits 8 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 |
Stud Mound Fine Machined Ball Transfer Unit D-4H Questions
What load can one D-4H ball transfer unit carry?
The rated load capacity is 8 kg per unit and the maximum load capacity is 10 kg.
How is the D-4H mounted?
It is a stud mount unit with an M8 diameter, so it is secured using two screws through the stud holes.
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-4H weighs 55 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-4H
Send the quantity and any material or surface option you need, and a quotation comes back against this model number.