Jack Caster - 3-1/2" Steel Wheel Caster - 300 Lbs Capacity

3-1/2 Inch Steel Wheel Jack Caster with Top-Plate Mount, 300 lb
✔️ Bolt pattern 1.25 x 3 in; height 4.625 in; wheel 3.5 x 1.25 in; 300 lb

Single jack caster with a 3-1/2" steel wheel and a top-plate mount for workshops and garages. Pack: single caster.

✅ Bolt pattern 1.25 x 3 in (31.75 x 76.2 mm)
✅ Overall height 4.625 in (117.5 mm)
✅ Wheel size 3.5 x 1.25 in (88.9 x 31.75 mm)
✅ Top plate size 2.375 x 3.625 in (60.3 x 92.1 mm)
✅ Mounting bolt size 5/16 in (7.94 mm)
✅ Swivel radius 3.125 in (79.4 mm)
✅ Capacity 300 lb (136 kg)

Dimension	Inches	Millimeters
Bolt pattern	1.25" x 3"	31.75 x 76.2 mm
Overall height	4.625"	117.5 mm
Wheel size	3.5" x 1.25"	88.9 x 31.75 mm
Top plate size	2.375" x 3.625"	60.3 x 92.1 mm
Swivel radius	3.125"	79.4 mm
Mounting bolt size	5/16"	7.94 mm

The jack caster uses plain bearings and is designed to replace top-plate mounted casters on floor jacks. It delivers a reliable, steady roll for moving carts, service trolleys, and portable equipment on shop floors.

Q&A for SEO

💡 What is a top-plate jack caster used for? This handy replacement helps swap worn wheels on jacks used in workshops, garages, and light industrial settings.

- Replaces worn top-plate mounted casters on floor jacks - Matches bolt pattern 1.25" x 3" for quick swaps - Supports up to 300 lb for portable equipment - Plain bearings keep maintenance simple and costs down