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3-1/2″ x 1-1/4″ Casters — In-Between Light-Medium Cart Spec, 192 Styles · 220–350 lb

Plate sizes: 2-3/8 x 3-5/8, 2-1/2 x 3-5/8, 3-1/8 x 4-1/8Bolt holes: 1-3/4 x 2-15/16 slotted to 2-3/8 x 3-3/8; 1-3/4 x 2-7/8; 1-3/4 x 2-13/16; 1-3/4 x 2-3/4 slotted to 3 x 3Diameter: 3-1/2 inTread: 1-1/4 inCapacity: up to 355 lbStem: threaded
This 22 Series (supports up to 325 lb/each) aisle groups plate-mount and threaded-stem casters built for bake carts, metalworking fixtures, and debris-heavy floors. You will see wheel diameters 3-1/2 in and polyurethane, phenolic, and nylon treads across the SKUs listed below. Replace worn corners in matched sets when possible so the cart tracks straight under load. Pair swivel and rigid casters for tracking, or use total locks where the cart must park on a grade.

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7 types

Rubber and polyurethane favor floor protection; phenolic and steel favor heavy capacity. Compare materials →

3-1/2″ x 1-1/4″ Casters: buying guide

The 3-1/2″ wheel size is the in-between spec. Slightly larger than 3″ for better floor-seam crossing without raising the cart deck the full inch that 4″ would. The 1-1/4″ tread width gives 250-300 lb capacity per caster — light-medium cart spec for service trucks, prep stations, hospitality carts, and light shop trucks. 192 styles on this page including polyurethane, TPR, and polyurethane on polyolefin variants in both plate and threaded-stem configurations.

192 styles250-300 lb per caster3-1/8″ x 4-1/8″ plate3/8″-16 threaded stem option

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