4" Performa Rubber 2 Series Swivel Caster - 2.04254.445 MTG12

About This Caster - 2.04254.445 MTG12

Choose this 4-inch Performa rubber swivel with the ball bearing and 1/2-20 fine-thread stem for a fine-tapped half-inch boss, the UNF fine pitch that resists working loose and the bigger 4-inch soft Grey wheel that rolls over obstacles.

The 1/2-20 UNF thread has more threads per inch than the coarse 1/2-13, so it grips a fine-tapped half-inch boss with extra contact and is slow to back out under vibration, the ball bearing rolls a loaded cart easy, and the 4-inch Performa rubber tread cushions the load and clears thresholds. Confirm your boss is 1/2-20 UNF, not a coarse 1/2-13, before you order. It is the fine-thread big-wheel rubber swivel for a fine-tapped half-inch boss.

Ideal applications

• Fine-tapped 1/2-20 UNF half-inch boss on a vibrating frame
• Fine pitch that grips with extra thread contact
• Bigger 4-inch soft wheel that clears thresholds

Boss is a coarse 1/2-13 thread, or you want a brake? The coarse stem or a braked version fits a different mount.

Pairs with: the rubber ball rigid 31MB40G-03 on the trailing corners.

Wrong fit? Want a coarse thread or a fine 5/8 stem? See the 1/2-13 rubber ball swivel 31MB40X41-03 and the 5/8-18 fine-thread rubber swivel 31MB40X5818-03.

Also in this family: the 3/4-10 rubber ball swivel 31MB40XH34-03, or the 2 Series caster collection.