10-Pack S684-2RS Stainless Steel Sealed Miniature Bearings 4x9x4mm

10-Pack S684-2RS Stainless Steel Sealed Miniature Bearings 4x9x4mmS684 2RS Stainless Steel Bearings Pack of 10 Rubber Sealed Miniature Bearings The S684 2RS is a stainless steel deep groove ball bearing set, made to keep small scale machines and RC models running smooth. Each bearing is sealed on both sides to block out dust and dirt, packed with grease for long lasting use, and sized at 4x9x4mm for precision setups. Stainless steel construction for durability Double rubber seals (2RS) for protection Pre lubricated

S684-2RS Stainless Steel Bearings
✔️ Pack of 10 Rubber Sealed Miniature Bearings

The S684-2RS is a stainless steel deep groove ball bearing set, made to keep small-scale machines and RC models running smooth. Each bearing is sealed on both sides to block out dust and dirt, packed with grease for long-lasting use, and sized at 4x9x4mm for precision setups.

✅ Stainless steel construction for durability
✅ Double rubber seals (2RS) for protection
✅ Pre-lubricated with grease
✅ Dimensions: 4mm inner diameter x 9mm outer diameter x 4mm width
✅ Dynamic load rating: 640 N
✅ Static load rating: 230 N
✅ Limiting speed with grease: 59,000 RPM
✅ Pack size: 10 bearings

☑️ Equivalent references: NSK 684-2RS, KOYO W684-2RS, NMB L-940-2RS
☑️ Fits: Kyosho, PICCO Cars RS600 Gas (1:10), Serpent 9000, Serpent Excel (1:8) 4WD, Serpent Impact-2 (2WD Pro & Sport), Serpent Vector, Serpent XL900 MKII

💡 Why use miniature stainless steel bearings in RC cars and precision tools?
Miniature bearings are built for high-speed, small-scale applications where space is tight.

• Provide smooth and reliable motion at extreme RPMs

• Rubber seals extend bearing life by blocking dirt and moisture

• Stainless steel construction resists wear and corrosion

A smart pick for hobbyists and pros who need reliable performance in compact builds. Grab your 10-pack today and keep your gear rolling at top speed.