Ball Bearing NTN 6804 JRLLU/5K 20x32x7

Application

The NTN 6804 JRLLU/5K 20x32x7 is a high-precision deep groove ball bearing designed for demanding industrial and mechanical applications requiring reliability, compact dimensions, and long service life.
Its double-rubber seal (LLU/5K) provides protection against dust and moisture, making it ideal for bearing housings, conveyors, electric motors, gearboxes, and automated machinery.
With its standard 20 mm inner diameter, 32 mm outer diameter, and 7 mm width, this bearing is easy to integrate into most industrial units and drive systems.

Advantages

• Double sealing (LLU type): Offers excellent protection against contamination and extends service life in harsh environments.

• High durability: Manufactured from premium bearing steel by NTN, ensuring dimensional stability and long-term performance.

• Compact and efficient: The 7 mm width allows for use in slim, high-speed assemblies where space and precision are critical.

• Pre-lubricated (5K grease): Factory-filled with long-life lubricant to minimize maintenance intervals and ensure smooth operation.

• Trusted NTN quality: A global manufacturer known for consistent quality and innovation in industrial bearing technology.

Technical data

Type: Single-row deep groove ball bearing
Designation: NTN 6804 JRLLU/5K
Inner diameter: 20 mm
Outer diameter: 32 mm
Width: 7 mm
Sealing: LLU - double rubber seals, pre-lubricated (5K grease)
Material: Hardened bearing steel
Operating temperature range: -25 °C to +110 °C
Limiting speed (greased): up to 13 000 rpm
Internal clearance: CN (normal)

This model combines compact dimensions with excellent load-bearing capacity, making it a reliable choice for industrial drives, conveyors, electric tools, and automation systems. Proper installation in a bearing housing and maintaining correct alignment will further extend its service life.

FAQ

Q1: Can this bearing replace a standard 6804 ball bearing?
Yes - the NTN 6804 JRLLU/5K is fully interchangeable dimensionally (20x32x7 mm) and adds LLU double-seal protection for longer service life.

Q2: What does the “LLU/5K” marking mean?
It indicates double rubber seals (LLU) and factory pre-lubrication (5K grease), ensuring optimal protection and ready-to-use installation.

Q3: Is this bearing suitable for industrial conveyors and electric motors?
Yes, its high-speed capability, sealed design, and precision construction make it ideal for conveyors, motors, and automation machinery.

Q4: Does it require additional lubrication?
The bearing is pre-lubricated and maintenance-free under normal operating conditions. However, periodic inspection may further extend service life in intensive applications.

Q5: How fast can it be delivered?
This product is in stock and available for 24-hour express delivery.