75mm Expanding Stem Casters M12*60 Red Threaded Stem Casters

Product Overview

This caster is designed for light to medium-duty equipment requiring secure installation (via an expansion stem) and positive locking (via double brakes). The 3-inch red polypropylene (PP) wheel offers a balance of floor protection and load capacity.

Features

• Stem Type: M12*60 Expansion Stem (also known as a "grip neck" or "blind hole" stem). It uses a wedge mechanism to expand the stem inside a tube, providing a vibration-proof fit.

• Wheel Diameter: 3 inches (approx. 75mm).

• Wheel Material: Red Polypropylene (PP).

• Brake Type: Double Brake (Total Lock). This mechanism typically locks both the wheel's rotation and the swivel action of the top plate simultaneously.

• Housing: Typically made of stamped steel with a zinc or chrome plating for corrosion resistance.

• Bearings: Usually equipped with plain bore (roller bearings) or sometimes precision ball bearings for smooth rolling.

Functional Benefits

• Tool-Free & Secure Installation: The expansion stem allows for quick installation and removal without needing to access the top side of the equipment. It expands tightly inside the leg tube, preventing the caster from wobbling or falling out.

• Floor Protection: The red Polypropylene wheel is hard but non-marking. It rolls easily over carpet and tile without leaving grey marks, making it ideal for indoor use.

• Stationary Safety: The "Double Brake" feature provides ultimate stability. By locking both the swivel and the wheel, it prevents the equipment from rolling away, swiveling, or drifting during use.

• Lightweight Mobility: The PP material is lightweight, making the equipment easier to maneuver than with heavy rubber or steel casters.

• Chemical Resistance: PP wheels offer good resistance to acids, solvents, and chemicals commonly found in industrial or medical environments.

Ideal Applications

• Medical Equipment: Hospital beds, IV stands, medical carts, and lightweight diagnostic machines (where hygiene and secure locking are critical).

• Light Industrial Carts: Assembly line carts, tool stands, and platform trucks in clean, dry environments.

• Retail & Display: Gridwall displays, shelving units, and garment racks that need to be moved frequently but locked in place for stability.

• Furniture: Heavy office furniture, filing cabinets, or entertainment centers that require a "grip neck" stem for blind holes in tubular legs.

• Food Service: Light-duty utility carts and serving trolleys (where non-marking wheels are required to protect flooring).