6909 2RS NTN 45x68x12 Deep Groove Ball Bearing - Rubber Sealed, High Precision

6909 2RS NTN 45x68x12 Deep Groove Ball Bearing - Rubber Sealed, High Precision

The NTN 6909 2RS Deep Groove Ball Bearing, with dimensions 45x68x12 mm, is a top-tier industrial bearing designed for high-speed, low-noise, and high-precision performance. Featuring double-sided rubber sealing (2RS) and chrome steel construction, it effectively repels contaminants while retaining lubrication for extended service life.

✅ Key Features:

• Model: NTN 6909 2RS

• Dimensions: Inner diameter 45 mm - Outer diameter 68 mm - Width 12 mm

• Bearing Type: Single-row deep groove ball bearing

• Sealing: Double rubber seals (2RS) for superior protection

• Material: Chrome steel (SAE‑52100), hardened for durability

• Performance: Suitable for combined radial and low axial loads; optimal for high-speed rotation, low friction and minimal vibration

• Load Ratings: Typical dynamic load ~13,100 N; static ~10,400 N; verified by industry datasheets

⚙️ Uses & Advantages:

• Ideal for industrial equipment, electric motors, gearboxes, compressors, robots, automotive assemblies. Widely used in optical and precision machinery, rotary encoders, and more

• Pre-lubricated grease ensures ready-to-install operation and minimal maintenance.

• Low friction torque, low noise and vibration — perfect for applications demanding consistency and long life

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“deep groove ball bearing,” “6909 2RS,” “NTN bearing,” “45x68x12 mm,” “double rubber sealed,” “industrial ball bearing,” “high precision bearing”

❓ FAQ - Frequently Asked Questions

What is the NTN 6909 2RS deep groove ball bearing?
A single‑row ball bearing by NTN, size 45x68x12 mm with 2RS rubber seals on both sides - designed for reliable, precision rotation in industrial applications.

Why choose a bearing with 2RS sealing?
Double rubber seals prevent dust and moisture contamination, lock in grease longer, and reduce maintenance — enabling smooth, low-friction operation.

What loads can it handle?
Built for radial loads and light axial forces in both directions — excellent for high-speed rotating equipment.

Where is it typically used?
Commonly installed in industrial machines, electric motors, gearboxes, automation tools, robotics, and precision devices.

Are alternate tolerance classes or internal clearances available?
Yes — available versions include C3 clearance and ABEC/National tolerance classes. Standard sealed version is sufficient for most applications.

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