Catalogue number: 3-4WH-QN Features: ●The wheels are made of polyacetal resin to improve noise reduction. ●Oil-impregnated sintered alloy is used for the bearings. ●If the product is used frequently, use a bearing multi-wheel. Applications: ●For hanging doors. Specifications: ●Name: Soundproof multi-wheel type for door hangers ●Compatible rail: No. 3 ●Load capacity (kg/piece): 75 ●A (mm): 50 ●B (mm): 37.6 ●D (mm): 66 ●K (mm): 57 ●L (inch): W5/8 ●Durability standard: 70,000 m (rated load at room temperature) Materials/Finish: ●Body: Steel ●Door roller: Cast iron
