Square grooved wheel - 50 mm - Galvanized steel - 1 ball bearing

Sliding wheel with groove in

Swivel caster Heavy-duty 4-inch rubber spring with capacity load of 99.8 kg

5pcs 6 x 30 x 13mm Ball Bearing Pulley with U Groove - Orange

Door Bottom Guide, adjustable floor guide, anti-scratch wheels with ball bearing, for framed sliding door, silver, 2 pieces（Adjustment range：10mm-35mm）

2 roller shutter wheels 6 cm, suspension roller for extendable gate, gate support roller for wooden garden gate, yard fence, load capacity 50 kg

Pcs Sliding Gate Wheels 50mm, Steel Wheels with U Groove, U Groove Wheel for Reverse Track, Industrial Machine, Rolling Door, Load Capacity 300kg per Wheel

4 pieces single roller for lifting reeving - sliding gate guide rail - 55 mm V-shaped grooved wheel - for ropes, steel cables etc.

Spring Loaded Gate Wheel 4" x1 (Heavy Duty Sliding Fence Support Jockey Door 100MM)

Set of 4 Nylon Garage Door Rollers Sealed Ball Bearing with 115mm Stem

Set of 4 sealed ball-bearing nylon garage door rollers with 115mm stem

CCYKXA 4Pcs Nylon Sliding Barn Door Rollers Wheels Pulleys for Electric Garage Sliding Doors Accessories 30x40mm

White nylon rollers with U-groove for sliding doors, size 20x6.5x7.4 mm

4pcs 4x20x6.5x7.4mm White Inner Dia 4MM U-Groove Nylon Pulley Wheel for Sliding Door

160mm rubber wheel

Replacement Nylon Rollers for Sliding Garage Doors – Pack of 10 Wheels with 5.1 cm Stem – Also Suitable for Shower Doors