Technical Data Sheet of the SKF QJ 219 N2MA Bearing

1. General Description: The SKF QJ 219 N2MA bearing is a four-point contact ball bearing designed to support radial and axial loads. It is characterized by a contact angle of 35°, which allows it to handle combined loads effectively. This bearing is particularly useful in applications where compact mounting and the ability to support high loads is required.

2. Materials and Construction:

• Cage: The cage is made of solid brass, which offers high strength and good durability.
• Balls: The balls are typically made of steel, a material that ensures resistance and durability.
• Coating: May feature surface treatments to increase corrosion resistance.

3. Measurements and Weight:

• Internal diameter: 95mm
• External diameter: 170mm
• Height (width): 32 mm
• Weight: 3.3kg

4. Mechanical Characteristics:

• Internal Clearance: Normal CN clearance, designed for general applications.
• Contact Angle: 35°, optimal for managing high axial loads.
• Load Capacity: Designed to support combined loads, reducing friction and improving operational efficiency.

5. Load Formula: To calculate the maximum load a bearing can support, the bearing life formula can be used:

$$L$$

Where:

• L10L_{10} $L$ 10 ​=
• CC $C$ = basic dynamic load (N)
• FF $F$ = applied load (N)

6. Sectors of Use: This bearing finds application in various sectors, including:

• Automotive industry
• Industrial machinery
• Mechanical transmissions
• Power plants and turbines

7. Brand and Manufacturer: SKF is a reference brand in the bearing sector, founded in 1907 in Sweden. The company is known for its innovation and the quality of its products, having a wide range of solutions for industrial applications. SKF is dedicated to research and development, offering high-tech and sustainable products

8. Assembly: The QJ 219 N2MA bearing must be installed to ensure correct alignment and support. It is recommended to use appropriate tools to avoid damage during installation. It is recommended to:

• Clean the mounting surfaces thoroughly.
• Use an appropriate lubricant to ensure proper lubrication.
• Mount the bearing in a housing that can guarantee its stability.

9. Advantages of Purchasing in Stock: Purchasing SKF bearings in stock offers numerous advantages:

• Immediate availability: Reduces downtime for quick replacements.
• Competitive costs: By purchasing in large quantities, you often get a better unit price.
• Reliability: SKF is synonymous with quality and durability, guaranteeing high performance over time.

10. Average Price: The average price of the SKF QJ 219 N2MA bearing is approximately €350.53 (excluding VAT), but may vary depending on the supplier and the quantity ordered

This data sheet provides a broad overview of the SKF QJ 219 N2MA bearing, highlighting its features and applications, making it an excellent choice for those seeking reliability and performance in their work.