Product: 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
Brand: LYJEE
Color: Black
Specifications

 Bearing Model: 608ZZ
 Material: Reinforced nylon+ bearing steel
 Color:Black
 Quantity: 4pcs
 Inner diameter: 8mm
 Outside diameter: 40mm
 Thickness: Aprox.20.5mm
 Slot width: Aprox.17.5mm
 Groove depth: 5mm
 Radius: R=10mm
 Weight:26.3g (one piece of wheels)

 Features
 Overall size: outside diameter 40mm/1.57in; height 20.5mm/0.80in
 U-groove size: width 17.5mm/0.69in; depth 5mm/0.20in
 Shaft hole diameter: 8mm/0.31in
 Max Load-bearing: 167kg/368lbs
 Package Contents
 4 x U Groove Pulley Wheels
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
【U-GROOVE SIZE】Inner Diameter: 8mm/0.3in, Outer Diameter: 40mm/1.6in, Thickness: 20.7mm/0.8in.
【OPERATION ADVANTAGES】: Stable and smooth operation, good mute effect, practical and durable.
【WIDELY USED】Widely used in doors and windows to track and drive mechanical equipments. These gadgets can be used to build the track system or replace the wheels on the dolly.
【Max Load-bearing】: the wheels are very strong and the bearing capacity is stronger.Max Load-bearing is 167kg/368lbs

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