SKF QJ 218 N2MA price 210 euros NEW IN BOX

SKF QJ 218 N2MA bearing

Make and Model : The SKF QJ 218 N2MA bearing is a robust and versatile solution, designed primarily for applications requiring reliable handling of radial and axial loads. This model is a favorite in the industry due to its ability to operate under heavy load conditions.

Components and Structure:

• Type : Four-point contact ball bearing.
• Materials : Made of high quality steel, with a brass cage that ensures superior wear resistance and optimal long-term operation.
• Dimensions : It has a bore diameter of 90 mm, an outer diameter of 160 mm, and a width of 30 mm. The four-point contact configuration allows it to handle axial loads in both directions.
• Mechanical Characteristics : It is designed for a maximum speed of 7000 rpm and has a dynamic radial load capacity of 186 kN and a static radial load capacity of 200 kN. These values ​​make it a particularly suitable bearing for harsh environments.

Operating Procedure :
The SKF QJ 218 N2MA is used primarily in applications requiring a combination of radial and axial loads, such as industrial machinery, drive systems, and heavy equipment. The bearing must be mounted correctly to avoid deformation or premature wear, and the use of hot mounting methods, such as those with induction heaters, is recommended to ensure proper expansion and fit on the shaft.

Accessories and Matchings :
This bearing can be combined with spacers, dust seals and specific lubricants to extend its life and improve resistance to extreme conditions such as high temperatures and dust contamination.

Formulas for Calculating Optimal Parameters:

• Equivalent Load : P=X⋅Fr+Y⋅FaP = X \cdot F_r + Y \cdot F_a $P$ $=$ $X$ $\cdot$ $F$ r ​+ $Y$ $\cdot$ $F$ a ​, XX $X$ and YY $Y$ are the contact angle-based load factors and FrF_r $F$ r ​and FaF_a $F$ a ​are
• Lifespan : The nominal bearing life in hours can be estimated with L10h=(CP)3×60⋅n106L_{10h} = \left( \frac{C}{P} \right)^3 \times \frac{60 \cdot n}{10^6} $L$ 10 h ​= $($ P C ​) 3 $\times$ 10 6 60 ⋅ n ​, CC $C$ is the dynamic load rating, PP $P$ the equivalent load and nn $n$ the speed in rpm.

Application Areas :
SKF QJ 218 N2MA is widely used in industries such as the steel industry, machine tools, industrial transmissions, and pumping systems. Thanks to its robustness and durability, it is an essential component in environments where operating conditions are extreme.

Maintenance and Evaluation of Used Bearings :
To ensure long life, regular cleaning and relubrication are essential. Evaluation of a good used bearing may include analyzing the condition of the contact surfaces, ensuring there is no rust or significant scratches, and ensuring smooth movement without abnormal play.

Convenience of Stock Purchase :
Buying SKF QJ 218 N2MA bearings in stock can reduce downtime and ensure quick replacement, which is essential for maintaining high operational efficiency of industrial plants.

SKF, founded in Sweden, is a world leader in bearings, lubrication systems and precision engineering technologies, with a reputation for quality and innovation