YOVXKAN Trolley Assembly,4 Wheel Silent Trolley Rollers for Use with 1-5/8" Wide and All 1-5/8" or Taller Unistrut Strut Channel ，Silver(Pack of 4)

YOVXKAN Trolley Assembly,4 Wheel Silent Trolley Rollers for Use with 1-5/8" Wide and All 1-5/8" or Taller Unistrut Strut Channel ，Silver(Pack of 4)

• Hidden Bolt Design: This Unistrut Trolley features an innovative hidden bolt design, where the bolts are fully recessed into the fastening channel，trolley will not be blocked in the channel 
• Wide Compatibility: Compatible with 1-5/8" Wide and All 1-5/8" or Taller Strut Channel, ensuring flexibility and versatility across various applications 
• High-Quality Materials: The 4 Wheel Trolley Assembly is constructed from high-strength galvanized steel, offering excellent corrosion resistance and durability 
• Versatile Applications: This Strut Channel Trolley can be used as Barn Door Rollers, replacement sliding door rollers, or garage door rollers, providing a flexible solution for a variety of door systems
• Bearing Protection: The rollers trolley features a raised section that shields the bearing from direct impact, significantly extending the bearing's lifespan and ensuring long-lasting, reliable performance