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

Screw Mount Ball Transfer Unit LW-8

The LW-8 is a screw mount ball transfer unit with a 8 mm diameter ball, rated for 5 kg working load and 8 kg maximum load. It is mounted using two M16 screw holes and fits into a clearance hole in a worktable or deck. The unit weighs 20 g and is available with a nylon, steel or stainless steel ball in a steel or stainless steel case.

Screw mount ball transfer unit LW-8 with steel ball and case, mounted on a worktable with two M16 screws
Screw mount ball transfer unit LW-8 with steel ball and case, mounted on a worktable with two M16 screws

Product Overview

The LW-8 is a screw mount ball transfer unit with a 8 mm diameter ball, rated for 5 kg working load and 8 kg maximum load. It is mounted using two M16 screw holes and fits into a clearance hole in a worktable or deck. The unit weighs 20 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 5 kg per unit in normal service and 8 kg at peak load
  • Screw mount with two M16 holes allows secure attachment to worktables and decks
  • 8 mm diameter ball enables smooth movement of flat, smooth items like trays
  • Nylon ball option protects delicate surfaces from marking during transfer
  • Stainless steel ball and case option for use in wet or corrosive environments

Application Scenarios

  • Transfer points in packaging machinery where flat trays are moved between stations
  • Feeding systems in processing machinery requiring precise, low-friction movement
  • Workbenches with curved sections where items must be rotated or repositioned by hand
  • Assembly lines with auxiliary equipment needing omnidirectional load transfer
  • Conveyor integration points where a flat object must be shifted sideways or rotated

Who It Is For

  • Conveyor system integrators building low-load transfer points
  • Packaging machinery builders needing small ball transfer units
  • Industrial equipment manufacturers integrating ball transfer units into workbenches
  • Material handling equipment makers designing auxiliary transfer tables
  • Industrial distributors stocking small ball transfer units by load and mounting type

Problems It Solves

  • Flat items that stick or jam when pushed across a fixed deck surface
  • Transfer points where a load must be repositioned in multiple directions without powered guidance
  • Worktables with curved sections where standard rollers cannot provide omnidirectional movement
  • Need for a secure, removable mounting method that allows service or replacement
  • Risk of surface damage when moving painted or polished trays across a hard deck

Technical Features

  • 8 mm diameter ball allows precise handling of small, flat objects
  • Screw mount with two M16 holes provides strong attachment to worktables
  • Fine machined ball seat ensures consistent rolling under light load
  • Ball and case materials selected independently for surface and environment needs
  • Compact size of M16 x 30 mm (diameter x height) fits into tight deck spaces

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 5 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
  • Screw hole alignment checked to ensure proper mounting on worktables

Customization Options

  • Ball material selected between nylon, steel and stainless steel
  • Case material selected between steel and stainless steel
  • Other LW Series models available for different load or mounting requirements

Use Guide

  • Ensure the load per unit does not exceed 5 kg in normal operation
  • Keep peak and impact loading below the 8 kg maximum load figure
  • Mount the unit on a flat, rigid deck to maintain ball alignment
  • Use the nylon ball when the load surface must not be marked
  • Use stainless steel ball and case in wet or washdown environments

Specifications

Model NoTHLW-8
MountingScrew mount
Load Capacity5 kg
Max Load Capacity8 kg
Weight20 g
Ball Diameter8 mm
Mount DiameterM16
Ball MaterialNylon, steel or stainless steel
Case MaterialSteel or stainless steel

Manufacturing Process

Step 1

Machining of the case and screw hole alignment

Step 2

Ball and support seat assembly

Step 3

Drilling and threading of M16 mounting holes

Step 4

Load check against the 5 kg rating before packing

Step 5

Final inspection and packaging

Compared With Other Options

Press mount ball transfer unitsScrew mount allows secure attachment and easy removal for maintenance, while press fit units are faster to install but harder to replace
Larger ball transfer unitsThe LW-8 is suited for 5 kg loads, so heavier applications require a larger unit with higher load capacity
Swivel castersDesigned for flat, smooth objects on worktables, not for floor movement or uneven surfaces

Screw Mount Ball Transfer Unit LW-8 Questions

What load can one LW-8 ball transfer unit carry?

The rated load capacity is 5 kg per unit and the maximum load capacity is 8 kg.

How is the LW-8 mounted?

It is a screw mount unit with two M16 holes, so it is secured with screws through the mounting 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 corrosive 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 LW-8 weighs 20 g, which is used for deck load and shipping calculations.

Can I get other load ratings in the same series?

Yes, the LW Series includes other models with different load capacities, so ask for the one that matches your load per unit.

Get a Price for Screw Mount Ball Transfer Unit LW-8

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