Amazon.com: Spring Loaded Roller (Center), 50 unidades) : Industrial y Científico
AR1F Spring Loaded Guide Roller Assembly Suit 5-16mm Rail - 2 Side Rollers 100x25, 1 Face Roller 100x25
Spring-loaded roller guide RFGK 2-A, housing spec. aluminium, 3 x rollers ø 100/20 x 25 mm, chamfered on both sides, ball bearings SKF/FAG, rollers damped, coverings VU 80°, spherical