SKF Explorer NU 228 ECJ/C3 PRICE 550 EURO

SKF Explorer NU 228 ECJ/C3 bearing

General characteristics

The SKF Explorer NU 228 ECJ/C3 is a single-row cylindrical roller bearing designed to handle high radial loads and for high-performance applications. It is ideal for applications requiring robustness, superior load-carrying capacity, and extended life.

• Design : Light series (NU), two flanges on the outer ring and none on the inner ring.
• Cage : Pressed steel cage type (ECJ).
• Clearance class : Higher than normal (C3), suitable for high temperature applications or more stringent assembly loads.

Technical specifications

• Internal diameter : 140 mm
• External diameter : 250 mm
• Width : 42 mm
• Weight : 9.4 kg
• Dynamic load capacity : 450 kN
• Static load capacity : 510 kN
• Fatigue load : 57 kN
• Reference speed : 2800 rpm
• Maximum speed : 3200 rpm

Materials

This bearing is made of high-quality hardened steel, which offers superior wear resistance and a long service life. The steel cage is optimized to reduce friction and improve load capacity, thus increasing efficiency.

Use in the sectors

The SKF Explorer NU 228 ECJ/C3 is used in industrial sectors requiring reliability and high performance, such as:

• Heavy industry : Mills, gearboxes and turbines.
• Automotive : Drivetrains and Axles.
• Energy sector : Applications in electric generators and motors.
• Precision Machinery : High-performance manufacturing tools.

Mathematical formulas for evaluating performance

1. Equivalent dynamic load : P=X⋅Fr+Y⋅FaP = X \cdot F_r + Y \cdot F_a $P$ $=$ $X$ $\cdot$ $F$ r ​+ $Y$ $\cdot$ $F$ a ​,

   • FrF_r $F$ r ​is
   • FaF_a $F$ a ​is
   • XX $X$ and YY $Y$ are load factors derived from the bearing configuration.

2. Theoretical bearing life : L10=(CP)pL_{10} = \left( \frac{C}{P} \right)^p $L$ 10 ​= $($ P C ​) p , where:

   • CC $C$ is the dynamic load capacity,
   • PP $P$ is the equivalent dynamic load,
   • pp $p$ is the exponent (usually 3 for roller bearings).

Advantages of buying ready for delivery

Buying a bearing such as the SKF Explorer NU 228 ECJ/C3 in stock offers numerous advantages:

• Reduce downtime : Immediate access to product helps avoid costly delays in operations.
• Quality assurance : Ready-to-stock bearings come directly from the manufacturer, guaranteeing authenticity and compliance with specifications.
• Better economic conditions : Avoiding customization reduces costs and makes buying in bulk more cost-effective than ordering made to order.

Manufacturer's Description - SKF

SKF is a leading global manufacturer of bearings and engineered solutions for reliability and sustainability. Founded in 1907, SKF is known for the quality of its products and its ability to constantly innovate to meet global industrial needs. The "Explorer" brand represents improved performance and reliability of its products .

Buying an SKF Explorer ensures a quality product, tested to rigorous standards, with global support and innovative technologies.