Can they be lubricated or are they dealed for life

Unlikely they will need lubrication but you can drop a bit of oil onto them at anytime.

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688ZZ Ball Bearing 8mm x 16mm x 5mm Double Shielded 688-2Z 2080088 Deep Groove Bearings, Carbon Steel (Pack of 20)

688ZZ Ball Bearing 8mm x 16mm x 5mm Double Shielded 688-2Z 2080088 Deep Groove Bearings, Carbon Steel (Pack of 20)

Product ID: 121863522

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Details

Brand
sourcing map
Material
Carbon Steel
Item weight
69 Grams
Bearing number
20
Item thickness
5 Millimetres

📏8x16x5mm precision sizing

⚙️Carbon steel strength under heavy loads

🛡️Double-sided shields for dust defense

Description

⚙️ Elevate your ride with bearings that keep pace and outlast the rest!

BUILT TO LAST - Carbon steel construction ensures heavy load resistance and long-term reliability
SPEED READY DESIGN - Optimized for high-speed operation without compromising durability
DUAL SHIELD DEFENSE - Double-sided shields lock out dust and debris, extending lifespan
MAINTENANCE MADE EASY - Pre-lubricated bearings mean less hassle, more performance
PRECISION PERFECT FIT - Exact 8mm inner and 16mm outer diameter for seamless integration

This pack of 20 688ZZ deep groove ball bearings features an 8x16x5mm size with double-sided shields to protect against dust, crafted from durable carbon steel for heavy load resistance. Pre-lubricated and designed for high-speed cycling applications, these bearings offer reliable, low-maintenance performance ideal for professional-grade bicycle headset parts.

Specifications

Manufacturer	sourcing map
Part number	a18060900ux0410
Item Weight	69 g
Package Dimensions	13.4 x 9.6 x 2.4 cm; 69 g
Manufacturer reference	a18060900ux0410
Size	8mmx16mmx5mm
Material	Carbon Steel
Item thickness	5 Millimetres
Batteries Required?	No

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