Variator cover bearing 638-2Z 8x28x9 mm – Piaggio / Gilera / Aprilia

Description

Radial ball bearing 638-2Z with dimensions 8x28x9 mm is used on numerous scooters, including as a bearing in the variator cover at the rear near the clutch on various Piaggio engines.

The bearing supports or guides the shaft in the variator cover area and ensures correct and smooth rotation of the drive system. It is suitable for replacing a worn original bearing.

The 2Z version means that the bearing is closed on both sides with metal protective shields.

Technical specifications

• Type: radial ball bearing
• Designation: 638-2Z
• Inner diameter: 8 mm
• Outer diameter: 28 mm
• Width: 9 mm
• Version: 2Z – metal shielded on both sides
• Position: variator cover / clutch area
• Quantity: 1 piece

OEM numbers for comparison

• Piaggio 82521R
• 4016021
• A011023
• 756.00.82

Note

The bearing is used on various models and engines, therefore before ordering we recommend comparing the 638-2Z designation, 8x28x9 mm dimensions and OEM number with the original bearing.