Industrial 51120 Thrust Ball Bearing

Description:

The 51120 Thrust Ball Bearing is used in industrial rotating equipment to support axial loads in one direction while allowing smooth shaft rotation. Commonly installed in gearboxes, screw jacks, pumps, cranes, and vertical shaft machinery requiring a single-direction thrust bearing. Maintenance teams and machine builders use this bearing for equipment repairs, bearing replacements, and power transmission system maintenance.

Applications:

The 51120 is a single-direction thrust ball bearing designed to accommodate axial loads only and must not be subjected to radial loads. It is commonly used in gearboxes, industrial pumps, marine equipment, vertical motors, screw-down systems, and other machinery where axial shaft positioning and high rotational speeds are required. Its separable design allows the shaft washer, housing washer, and ball-and-cage assembly to be mounted separately for easier installation and maintenance.

Technical Specifications:

• Manufacturer Part Number (MPN): 51120
• Product Type: Single-Direction Thrust Ball Bearing
• Bearing Type: Thrust Ball Bearing
• Direction of Load: Single Direction
• Bore Diameter (d): 100 mm (3.937 in)
• Outside Diameter (D): 135 mm (5.315 in)
• Width (H): 25 mm (0.984 in)
• Bearing Design: Separable
• Cage Material: Steel
• Precision Class: Standard Precision
• Lubrication: Grease or Oil
• Load Type: Axial Loads Only
• Radial Load Capability: None
• Basic Dynamic Load Rating: 80.6–85 kN
• Basic Static Load Rating: 265–270 kN
• Weight: Approximately 0.97–1.26 kg
• Standards: DIN 711, ISO 104
• Application: Gearboxes, Pumps, Vertical Shafts, Industrial Machinery

Common Replacements:

• SKF 51120 Thrust Ball Bearing
• FAG 51120 Thrust Ball Bearing
• NSK 51120 Thrust Ball Bearing