EZO S‑MR 83 ZZ Deep Groove Ball Bearing - 3x8x3 mm - High‑Precision Shielded Miniature Bearing

EZO S‑MR 83 ZZ - Shielded Deep Groove Ball Bearing (3x8x3 mm)

The EZO S‑MR 83 ZZ is a miniature deep groove ball bearing produced by EZO (formerly Nachi), made in Japan. With dimensions 3 mm (ID), 8 mm (OD), 3 mm (B), this bearing is perfect for applications requiring compact yet durable components.

Equipped with double metal shields (ZZ), it provides excellent protection against dust and debris while allowing high-speed rotation and minimal friction. Its solid chrome steel construction (100Cr6 / AISI 52100) delivers high load capacity and longevity.

📐 Technical Specifications:

• Inner Diameter (d): 3 mm

• Outer Diameter (D): 8 mm

• Width (B): 3 mm

• Sealing: ZZ - double-sided metal shields

• Material: Chrome bearing steel (100Cr6)

• Precision: Standard (CN clearance)

• Lubrication: Pre-lubricated, for high-speed operation

• Max Speed: up to ~67 000 rpm (grease), ~79 000 rpm (oil)

🎯 Ideal Applications:

• Fishing reels (bearings in spools and gears)

• Precision gearboxes and mechanical linkages

• Hobby and RC devices (motors, drones)

• Rotational components in small machinery

• Instruments requiring compact, smooth-running bearings

❓ FAQ - Frequently Asked Questions

Q1: What does “ZZ” mean?
A: “ZZ” indicates metal shields on both sides, protecting against contamination and allowing high-speed rotation.

Q2: Is this a stainless steel bearing?
A: No — it is made of chrome steel (100Cr6), not stainless. Stainless versions are marked with “SS” or “SMR”.

Q3: What applications suit this bearing?
A: Ideal for fishing reels, miniature gear mechanisms, RC motors, and precision rotary systems.

Q4: Can it operate at high speeds?
A: Yes — speeds up to 67 000 rpm with grease or 79 000 rpm with oil lubrication .

Q5: Is it available for B2B orders?
A: Yes — available with volume pricing and 24h dispatch from our warehouse.

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