HPS 21315EAE4C3 High-Performance Spherical Roller Bearing (Optimized for Yarder & Hauler Applications)

HPS 21315EAE4C3 | 75mm x 160mm x 37mm Spherical Roller Bearing

Professional-grade, high-capacity bearing featuring an EA-type pressed steel cage and C3 internal clearance. Optimized for the shock loads and thermal demands of yarder drums and heavy-duty haulers, this unit includes an E4 lubrication groove for simplified maintenance in the field.

HPS Series 75mm Spherical Roller Bearing: Engineered for Extreme Industrial Service

The HPS 21315EAE4C3 Spherical Roller Bearing is a high-performance spherical roller bearing designed for the punishing mechanical demands of cable yarding and high-lead logging equipment. In these environments, components must manage intense vibration and inevitable shaft misalignment. This High Performance Standard (HPS) unit is engineered to provide superior fatigue life and reliability where standard bearings often fail.

The self-aligning design is critical for equipment like yarders and haulers, where frame flex and structural deflections occur under maximum pull. The EA-series high-capacity internal geometry utilizes a surface-hardened pressed steel cage, offering high resistance to the jarring shock loads common in drum and sheave operations. With C3 internal clearance, this bearing maintains its geometric integrity even during the significant thermal expansion associated with continuous heavy-duty cycles.

Technical Advantages for Heavy Machinery:

• HPS Reliability: Increased dynamic load ratings provide a longer service life in remote, high-stress environments.

• Shock Load Resistance: Reinforced steel cage and high-purity steel construction handle erratic radial and axial forces without premature fatigue.

• Integrated Maintenance: Features the E4 lubrication system (circumferential groove and three oil holes) for efficient field re-greasing.

• Self-Aligning Architecture: Accommodates up to 2° of misalignment, protecting critical shafts and housings from edge loading.