687 Bearing 7x14x3.5mm - Open - Miniature

687 Open Ball Bearing
✔️ 7mm x 14mm x 3.5mm - Chrome Steel

This 687 open-style ball bearing is a popular size for RC cars, mini gearboxes, and precision hobby projects. Built from tough chrome steel (52100 alloy), it’s designed for smooth spins at seriously high RPMs.

✅ Deep groove radial design
✅ Made from 52100 chrome steel for durability
✅ Open style for low friction and easy access
✅ Size: 7mm ID x 14mm OD x 3.5mm width
✅ Dynamic load: 1,150 N
✅ Static load: 510 N
✅ Max speed (grease): 45,000 RPM
✅ Max speed (oil): 54,000 RPM
✅ Sold as 1 open bearing

Dimensions Table (mm):

💡Why use open ball bearings in RC or hobby applications?
Open bearings keep it light and fast - perfect for high-speed motion:

• Lower friction compared to sealed or shielded styles

• Easier to clean and re-lube

• Spins freely at ultra-high RPMs

• Great for low-dust environments or enclosed gearboxes

Need speed? This bearing’s ready to rip - add one to your cart and get your RC or project gliding!