3” Replacement Heavy Duty Casters with Easy Rolling Ball Bearings for GoJak Models 4107, 4500, 4520 - Set of 4

3-Inch Heavy-Duty GoJak Dolly Casters with Ball Bearing Upgrade
✔️ Fits GoJak 4107/4500/4520; 1/2 in. stem, 1 in. long; nuts incl

These 3-inch replacement casters are built for GoJak dollies and are ideal in workshops and garages where you need to move heavy loads with ease. They fit GoJak models 4107, 4500, and 4520 and install through a 1/2 in. diameter stem that is 1 in. long, secured with a plain nut and lock washer.

✅ 3 in. (76.2 mm) diameter hard rubber wheels with ball bearings for smooth rolling
✅ Crowned tread design enables easy pivoting and tracking during moves
✅ 1/2 in. (12.7 mm) stem and 1 in. (25.4 mm) long through-frame mount; plain nut & lock washer included
✅ Pack of 4 casters with 4 nuts and 4 lock washers for secure installation
✅ Fits GoJak models 4107, 4500, 4520; wheels may mark floors on certain surfaces

💡 What is a heavy-duty caster wheel with ball bearings used for?

This handy component helps move heavy loads smoothly across shop floors and frames.

• heavy-duty caster wheel with ball bearings for smooth rolling
• crowned tread design aids easy pivoting and tracking
• through-frame mounting with standard nuts and washers for secure fit
• ideal for GoJak dollies and similar mobile frames needing reliable steering