Deep Groove Ball Bearing – 6309LLUC3/2AS

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NTN 6309LLUC3/2AS Deep Groove Ball Bearing – Heavy-duty, double-sealed bearing with 45mm bore and C3 clearance for high-speed, low-friction performance in industrial machinery and electric motors.

Original price was: $18.42.Current price is: $17.46.

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Description

The NTN 6309LLUC3/2AS is a premium-grade single-row deep groove ball bearing built for durability, precision, and smooth operation under demanding conditions. With a 45mm inner diameter, 100mm outer diameter, and 25mm width, it’s ideal for medium to heavy-duty applications including electric motors, gearboxes, pumps, and conveyors.

This bearing features LLU double-sided contact seals made from nitrile rubber, providing excellent protection against dust, moisture, and contaminants. The 2AS suffix indicates enhanced sealing performance with Shell Alvania #2 grease pre-filled for long-lasting lubrication. The C3 radial clearance allows for thermal expansion and higher speed tolerance, making it suitable for high-speed and high-load environments.

Constructed from high-carbon chrome steel and fitted with a pressed steel cage, the NTN 6309LLUC3/2AS meets ISO Class 0 / ABEC 1 precision standards and operates reliably at speeds up to 4700 RPM. With a dynamic load rating of 58.5 kN, it delivers consistent performance and extended service life across a temperature range of -40°C to +120°C.

Specifications

Specification Details
Brand NTN
Model 6309LLUC3/2AS
Bearing Type Deep groove ball bearing
Configuration Single row
Inner Diameter 45 mm
Outer Diameter 100 mm
Width 25 mm
Weight 0.86 kg
Material High carbon chrome steel
Ball Material Steel
Cage Type Pressed
Cage Material Steel
Seal Type LLU (double-sided contact)
Seal Material Nitrile rubber
Radial Clearance C3 (greater than normal)
Precision Class ISO Class 0 / ABEC 1
Limiting Speed (Grease) 4700 RPM
Static Load Rating 32.00 kN / 7200 lbf
Dynamic Load Rating 58.50 kN / 13,150 lbf
Operating Temperature Range -40°C to +120°C / -40°F to +250°F
Lubrication Shell Alvania #2 grease (2AS)

 

Additional information

Weight 0.86 kg
Dimensions 100 × 25 mm

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