Heavy-duty casters designed for pro audio gear that needs to move frequently. Whether you're rolling speaker cabinets between venues, repositioning rack cases during setup, or making flight cases mobile, these swivel casters handle the job with confidence.

Each set includes two locking and two non-locking casters with 4-inch non-skid rubber wheels that distribute weight evenly and protect floor surfaces. The mixed configuration gives you stability when needed — lock the rear casters during shows, leave the front ones free for easy positioning adjustments.

Built with steel frames and rated at 500 pounds per caster, this 4-pack can support up to 2,000 pounds total load. The 5-inch total height from mounting plate to floor provides generous ground clearance while maintaining a low profile. Non-skid rubber wheels grip smoothly on concrete, wood, and carpeted surfaces without marking or damage.

Perfect for making speaker cabinets venue-ready, converting stationary rack cases into rolling rigs, or adding mobility to subwoofer enclosures and monitor wedges. Essential for mobile DJs, touring bands, rental companies, and venues that frequently reconfigure their sound systems. The locking mechanism prevents unwanted movement during performances while still allowing quick repositioning between sets.

Mounting hardware not included — use appropriate bolts for your specific application. Seismic Audio backs these casters with reliable construction and prompt shipping, giving your gear the mobility it needs without compromising stability.

Technical Specifications

Frequently Asked Questions

What's the difference between locking and non-locking casters in this set?

Locking casters have a brake mechanism that prevents both rolling and swiveling when engaged, providing stability during performances or transport. Non-locking casters move freely in all directions. The 2-and-2 configuration lets you lock the rear casters for stability while keeping front casters free for easy positioning.

Can these casters support a full speaker cabinet or subwoofer?

Yes, each caster supports 500 pounds, giving the complete 4-pack a 2,000-pound capacity. This easily handles most speaker cabinets, subwoofers, and loaded rack cases. For reference, most 15-inch powered speakers weigh 50-80 pounds, and typical 18-inch subwoofers range from 80-120 pounds.

What mounting hardware do I need to install these casters?

Mounting hardware is not included since bolt requirements vary by application. Most installations use 1/4-inch or 5/16-inch bolts through the four corner holes in each caster plate. Check your cabinet or case specifications for proper bolt size, length, and thread pitch.

Will these casters damage floors in venues or churches?

The non-skid rubber wheels are specifically designed to protect floor surfaces while providing good grip. They won't mark hardwood, tile, or carpeted surfaces under normal use. The rubber material also reduces rolling noise compared to hard plastic wheels.

How much ground clearance do these provide under my equipment?

These casters add 5 inches of height from the mounting surface to the floor. This provides good clearance for cables, uneven surfaces, and small obstacles while keeping the overall profile manageable for loading and transport.

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer. For more information, go to: www.P65Warnings.ca.gov