Tianhe Conveying Machine Co.,Ltd · Wuxi Jiangsu China
NJ LW FB Series

Stud Mount Hexagon Ball Transfer Unit NJ-30

The NJ-30 is a stud mount hexagon ball transfer unit with a 30.16 mm diameter ball, rated for 150 kg working load and 200 kg maximum load. It is designed to be mounted via a stud with M14 diameter, allowing secure attachment to a worktable or deck plate. The unit weighs 230 g and is available with a nylon, steel or stainless steel ball in a steel or stainless steel case. It enables omnidirectional movement of flat, smooth objects such as trays, panels or containers across a fixed surface.

Stud mount hexagon ball transfer unit NJ-30 with steel main ball mounted on a deck plate
Stud mount hexagon ball transfer unit NJ-30 with steel main ball mounted on a deck plate

Product Overview

The NJ-30 is a stud mount hexagon ball transfer unit with a 30.16 mm diameter ball, rated for 150 kg working load and 200 kg maximum load. It is designed to be mounted via a stud with M14 diameter, allowing secure attachment to a worktable or deck plate. The unit weighs 230 g and is available with a nylon, steel or stainless steel ball in a steel or stainless steel case. It enables omnidirectional movement of flat, smooth objects such as trays, panels or containers across a fixed surface.

Part of the NJ LW FB Series range, used in Sheet Metal and Press Shops.

Key Benefits

  • 150 kg working load and 200 kg maximum load per unit for heavy-duty handling
  • Stud mount with M14 diameter allows secure, bolted attachment to a deck or table
  • Hexagon case design provides stable mounting and resistance to rotation under load
  • Nylon ball option protects painted or polished surfaces from marking
  • Stainless steel ball and case option suitable for wet, washdown or corrosive environments

Application Scenarios

  • Transfer points on a flat deck where trays or panels need to be moved in any direction
  • Assembly lines with fixed workstations requiring manual repositioning of components
  • Feeding systems for packaging machinery where flat items must be aligned or rotated
  • Processing tables for CNC routers or band saws where workpieces are adjusted by hand
  • Conveyor integration points where a load must be transferred between two lines at an angle

Who It Is For

  • Conveyor system integrators building transfer and alignment points into a line
  • Industrial equipment builders designing worktables with manual load positioning
  • Packaging machinery manufacturers requiring omnidirectional movement of flat items
  • Material handling equipment makers building fixed deck transfer systems
  • Industrial distributors stocking ball transfer units by load rating and mounting type

Problems It Solves

  • Loads that cannot be rotated or repositioned easily on a fixed deck surface
  • Transfer points where product must change direction without powered diverters
  • Workstations where operators need to manually align or turn a heavy panel or tray
  • Fixed decks where a single unit must handle both light and heavy items without jamming
  • Mounting systems that require a secure, bolted attachment instead of a press fit

Technical Features

  • 30.16 mm diameter ball with fine machined seat for consistent rolling under load
  • Stud mount with M14 diameter for secure, bolted attachment to a deck plate
  • Hexagon case shape prevents rotation and provides stable mounting
  • Ball and case materials selected independently to suit environment and surface contact
  • Unit weight of 230 g for deck load and shipping calculations

Materials

  • Nylon ball for non-marking contact with painted or polished surfaces
  • Carbon steel ball and case for general industrial use in dry environments
  • Stainless steel ball and case (SUS304) for wet, washdown or corrosive areas

Quality Control

  • Load capacity verified against the 150 kg working load before packing
  • Ball rotation checked by hand for free movement in all directions
  • Material grade confirmed against the ball and case option ordered
  • Stud diameter and threading inspected for correct M14 fit

Customization Options

  • Ball material selected between nylon, steel and stainless steel
  • Case material selected between steel and stainless steel
  • Other NJ Series load ratings available where 150 kg is not the right size

Use Guide

  • Divide the total load by the number of units in contact to ensure no unit exceeds 150 kg working load
  • Keep peak and impact loading below the 200 kg maximum load figure
  • Mount the unit on a flat, rigid 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 exposed to moisture or cleaning agents

Specifications

Model NoNJ-30
MountingStud mount
Mount DiameterM14
Load Capacity150 kg
Max Load Capacity200 kg
Weight230 g
Ball Diameter30.16 mm
Ball MaterialNylon, steel or stainless steel
Case MaterialSteel or stainless steel
Dimension45 x 70 mm

Manufacturing Process

Step 1

Machining of the hexagon case and stud mounting hole

Step 2

Ball seat precision machining to ensure smooth rotation

Step 3

Assembly of ball and support bearings into the case

Step 4

Stud threading and finishing for secure bolt attachment

Step 5

Load test and visual inspection before packing

Compared With Other Options

Flange mount ball transfer unitsStud mount bolts through the deck and allows easier removal, while a flange mount is fixed from above and may require deck plate modification
Press fit ball transfer unitsStud mount provides a secure, bolted connection that can be serviced or replaced, while a press fit is faster to install but harder to remove
Lower rated NJ Series unitsThe NJ-30 suits 150 kg loads, so lighter applications are better served by a smaller unit that rolls with less effort

Stud Mount Hexagon Ball Transfer Unit NJ-30 Questions

What load can one NJ-30 ball transfer unit carry?

The rated working load is 150 kg per unit and the maximum load capacity is 200 kg.

How is the NJ-30 mounted?

It is a stud mount unit with M14 diameter, so it is bolted through the stud onto 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 (SUS304).

How much does the unit weigh?

Each NJ-30 weighs 230 g, which is used for deck load and shipping calculations.

Can I get other load ratings in the same series?

Yes, the NJ Series includes other load ratings, so ask for the model that matches your load per unit.

Get a Price for Stud Mount Hexagon Ball Transfer Unit NJ-30

Send the quantity and any material or surface option you need, and a quotation comes back against this model number.