Roller guide FK 8, for car, housing spec. steel galvanized, 280 x 175 x 130 mm, 2 x rollers ø 180/30 x 40 mm, 1 x roller ø 150/25 x 25 mm, cores steel, covering Vulkollan® 93° Shore
Amazon.com: Letool 4pcs U type groove pulley nylon Guide Pulley Rolling Bearing U Groove Roller Wheel 8x40x20mm for Driving Mechanical Equipment, or Used in Doors and Windows : Industrial & Scientific
Guide Rollers - Rollers - Configure and purchase | MISUMI
DualVee Studded Guide Wheels with double 90-degree vee surfaces and threaded mounting shaft.