U Type Pulley Roller Guide Wheel U-Groove 0840UU 8x40x20.7mm Industrial Scientific Power Transmission Products 4pcs

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  • ? HIGH QUALITY: Made of high quality material, these pulleys are durable, sturdy and wearable.
  • ? PREMIUM: Internal lubrication grease, smooth operation, good mute effect.
  • ? REDUCE FRICTION: U-shape groove design, smooth surface reduces friction.
  • ? 4PCS: There are total 4 pieces of pulleys in one set that you can use for many projects.
  • ? WIDELY USED: Widely used in doors and windows to track and drive mechanical equipment.

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    $13.89
     
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