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

Stud Mount Hexagon Ball Transfer Unit NJ-25

The NJ-25 is a stud mount hexagon ball transfer unit with a 25.4 mm diameter ball, rated for 60 kg working load and 80 kg maximum load. It is mounted via an M12 stud and fits into a hexagonal housing to allow omnidirectional movement of flat, smooth objects on a worktable or conveyor deck. The unit weighs 210 g and is available with a nylon, steel or stainless steel ball in a steel or stainless steel case.

Stud mount hexagon ball transfer unit NJ-25 with steel main ball mounted on a worktable
Stud mount hexagon ball transfer unit NJ-25 with steel main ball mounted on a worktable

Product Overview

The NJ-25 is a stud mount hexagon ball transfer unit with a 25.4 mm diameter ball, rated for 60 kg working load and 80 kg maximum load. It is mounted via an M12 stud and fits into a hexagonal housing to allow omnidirectional movement of flat, smooth objects on a worktable or conveyor deck. The unit weighs 210 g and is available with a nylon, steel or stainless steel ball in a steel or stainless steel case.

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

Key Benefits

  • Carries 60 kg per unit in normal service and 80 kg at peak load
  • Stud mount with M12 diameter allows secure attachment to worktables and decks
  • Hexagonal housing fits into a hex hole for positive alignment and prevents rotation
  • Omnidirectional ball movement allows product to be pushed and rotated in any direction
  • Nylon ball option protects painted or polished surfaces from marking

Application Scenarios

  • Transfer points on a flat worktable where trays or components need to be repositioned by hand
  • Assembly line stations where a fixture must be rotated between operations
  • Feeding systems where flat parts are moved and aligned on a workbench
  • Packaging machinery where a tray is turned or shifted between processes
  • Processing machinery with curved work surfaces requiring 360-degree movement

Who It Is For

  • Conveyor system integrators building transfer points with manual repositioning
  • Industrial equipment builders integrating ball transfer units into workbenches
  • Assembly line designers needing manual rotation of fixtures or parts
  • Material handling equipment makers building modular workstations
  • Industrial distributors stocking ball transfer units by load and mounting type

Problems It Solves

  • Loads that jam or drag when pushed across a fixed deck due to lack of omnidirectional movement
  • Workstations where product must be repositioned but no powered diverter is available
  • Operators struggling to rotate a heavy or large flat component by hand
  • Mounting systems that allow rotation or misalignment due to loose fit or round housing
  • Surface damage from steel balls on painted or polished worktables

Technical Features

  • 25.4 mm diameter ball allows smooth movement of flat, rigid objects
  • Stud mount with M12 diameter provides a secure, fixed attachment point
  • Hexagonal housing prevents rotation and ensures alignment with the mounting hole
  • Ball and case materials selected independently for load and environment
  • Unit weight of 210 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
  • Stainless steel ball and case (SUS304) for wet, washdown or corrosive environments

Quality Control

  • Load capacity verified against the 60 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 NJ Series load ratings available where 60 kg is not the right size

Use Guide

  • Divide the load by the number of units in contact to ensure no more than 60 kg per unit
  • Keep peak and impact loading below the 80 kg maximum load figure
  • Mount the unit into a hexagonal hole to prevent rotation and ensure alignment
  • Use nylon ball where the load surface must not be marked
  • Use stainless steel ball and case where the deck is exposed to moisture or cleaning

Specifications

Model NoNJ-25
MountingStud mount
Mount DiameterM12
Load Capacity60 kg
Max Load Capacity80 kg
Weight210 g
Ball Diameter25.4 mm
Ball MaterialNylon, steel or stainless steel
Case MaterialSteel or stainless steel
Dimension36 x 60 mm

Manufacturing Process

Step 1

Machining of the hexagonal case and stud hole

Step 2

Ball and support seat assembly

Step 3

Stud threading and finishing

Step 4

Load check and packing

Compared With Other Options

Flange mount ball transfer unitsStud mount fixes from below with a threaded stud, while flange mount bolts from above and requires a deck plate with a flange hole
Round housing ball transfer unitsHexagonal housing prevents rotation and ensures alignment, while round housing can spin and misalign under load
Press fit ball transfer unitsStud mount allows removal and replacement without damaging the deck, while press fit units are harder to service

Stud Mount Hexagon Ball Transfer Unit NJ-25 Questions

What load can one NJ-25 ball transfer unit carry?

The rated load capacity is 60 kg per unit and the maximum load capacity is 80 kg.

How is the NJ-25 mounted?

It is a stud mount unit with an M12 diameter stud, which is bolted through a hole in 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-25 weighs 210 g, which is used when calculating deck weight and shipping.

Can I get other load ratings in the same series?

Yes, the NJ Series covers 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-25

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