608ZZ Ball Bearing

608ZZ Deep Groove Ball Bearing – Precision Fit for Smooth Performance

Compact. Durable. Ready to roll.

The 608ZZ bearing is one of the most versatile and widely used bearings in the world — and a go-to replacement part in gym equipment repairs, especially where smooth, high-speed rotation is critical.

Whether you're servicing a treadmill, elliptical, or cable machine, this double-shielded deep groove bearing offers the reliable performance and long life your equipment demands.

Ideal For:

• ✅ Treadmill rollers (front/rear)

• ✅ Spin bikes & stationary bikes (crank & flywheel)

• ✅ Ellipticals & cross trainers (pivot and flywheel points)

• ✅ Cable machines, pulley systems & functional trainers

• ✅ Core trainers, ab rollers, and other rotating fitness tools

• ✅ Also suitable for skateboards, scooters, 3D printers, and DIY machinery

Key Features:

🔧 Double Metal Shields (ZZ)
Sealed on both sides to protect from dust and debris — ideal for gym and workshop environments.

⚙️ Smooth, Quiet Rotation
High-quality steel races and balls ensure low-friction, noise-free performance at high speeds.

🧰 Standard Sizing for Easy Replacement
Universal 608 sizing means it fits most gym machines that use 608-series bearings.

🌱 Versatile Beyond Fitness
Also perfect for small mechanical devices, electric motors, tools, skate gear, and more.

Technical Specifications:

• Type: Deep Groove Ball Bearing

• Model: 608ZZ (double shielded)

• Bore Diameter (ID): 8mm

• Outer Diameter (OD): 22mm

• Width: 7mm

• Material: Chrome Steel

• Shields: Metal shields on both sides (ZZ)

• Lubrication: Pre-lubricated (no maintenance required)

• Load Rating: Light to moderate radial loads

💡 Need Help Matching Your Bearing?

If you're not sure if the 608ZZ is the right fit for your equipment, remove the old bearing and check the number stamped on the side — or measure it directly. We're happy to assist with sizing and fitment questions!