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

Screw Mount Ball Transfer Unit LW-12

The LW-12 is a screw mount ball transfer unit with a 12 mm diameter ball, rated for 12 kg working load and 15 kg maximum load. It is mounted using two screw holes in the case and is designed for use on flat, smooth surfaces such as trays, tables, or conveyor decks. The unit weighs 30 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-12 with steel ball and case, mounted on a flat surface
Screw mount ball transfer unit LW-12 with steel ball and case, mounted on a flat surface

Product Overview

The LW-12 is a screw mount ball transfer unit with a 12 mm diameter ball, rated for 12 kg working load and 15 kg maximum load. It is mounted using two screw holes in the case and is designed for use on flat, smooth surfaces such as trays, tables, or conveyor decks. The unit weighs 30 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 12 kg per unit in normal service and 15 kg at peak load
  • Screw mount provides secure attachment to worktables and decks
  • 12 mm diameter ball allows smooth movement of flat, rigid items
  • Nylon ball option protects delicate surfaces from marking
  • Stainless steel ball and case option for wet or corrosive environments

Application Scenarios

  • Transfer points on a flat deck where trays or rigid components need to be rotated or repositioned
  • Feeding systems in packaging machinery where flat items are moved in any direction
  • Processing tables in assembly lines where components are manually aligned
  • Workbenches in machining or routing operations requiring 360-degree movement
  • Conveyor integration points where a flat load must be transferred between lines

Who It Is For

  • Conveyor system integrators building low-load transfer points
  • Industrial equipment builders integrating ball transfer units into workstations
  • Packaging machinery manufacturers needing omnidirectional movement
  • Assembly line designers requiring manual repositioning of flat components
  • Industrial distributors stocking small ball transfer units by load rating

Problems It Solves

  • Flat items that jam or drag when pushed across a fixed deck
  • Manual alignment of trays or components that must be rotated in any direction
  • Workstations where a single point of movement is needed without powered diverters
  • Systems requiring a low-profile, secure mounting method for small loads
  • Applications where surface marking from metal balls must be avoided

Technical Features

  • 12 mm diameter ball allows precise movement of small, flat items
  • Screw mount with two threaded holes for secure attachment to worktables
  • Fine machined ball seat ensures consistent rolling under load
  • Available with nylon, steel, or stainless steel ball for different surface needs
  • Case made from steel or stainless steel for durability in dry or wet areas

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 12 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 models in the NJ LW FB Series available for different load or mounting needs

Use Guide

  • Ensure the load per unit does not exceed 12 kg under normal use
  • Keep peak and impact loading below the 15 kg maximum load limit
  • Mount the unit on a flat, rigid surface so the ball sits level and rotates freely
  • Use nylon ball when the load surface must not be marked
  • Use stainless steel ball and case in wet or washdown environments

Specifications

Model NoLW-12
MountingScrew mount
Load Capacity12 kg
Max Load Capacity15 kg
Weight30 g
Ball Diameter12 mm
Ball MaterialNylon, steel, stainless steel
Case MaterialSteel, stainless steel
Mount DiameterM24
DimensionM24 x 45 mm

Manufacturing Process

Step 1

Machining of the case and screw mounting holes

Step 2

Ball and support seat assembly

Step 3

Final inspection of ball rotation and mounting integrity

Step 4

Weight check and packaging

Compared With Other Options

Press mount ball transfer unitsScrew mount allows secure attachment and easier removal for maintenance, while press fit units are faster to install but harder to replace
Larger ball transfer unitsThe LW-12 is suited for small, flat items like trays; larger units are better for heavier or irregular loads
Swivel castersScrew mount ball transfer units are fixed to a surface and do not roll on the floor; casters are for mobile applications

Screw Mount Ball Transfer Unit LW-12 Questions

What load can one LW-12 ball transfer unit carry?

The rated load capacity is 12 kg per unit and the maximum load capacity is 15 kg.

How is the LW-12 mounted?

It is a screw mount unit with two threaded holes, secured to the deck using screws.

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-12 weighs 30 g, which is used for deck load and shipping calculations.

Can I get other models in the same series?

Yes, the NJ LW FB Series includes other models with different load ratings and mounting options.

Get a Price for Screw Mount Ball Transfer Unit LW-12

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