Torrington,35SF56,Spherical Plain Bearing 3-1 2 INCH Bore

Description:

The Torrington 35SF56 is a heavy-duty radial spherical plain bearing designed to accommodate high radial loads and moderate misalignment without the use of rolling elements. Featuring a 3-1/2 inch bore, a 5-1/2 inch outside diameter, and a self-lubricating molybdenum disulfide (MoS₂) coated sliding surface, this bearing is engineered for demanding applications where oscillating motion, shock loads, and slow rotational movement are common. It is widely used in construction equipment, mining machinery, hydraulic cylinders, off-highway vehicles, steel mills, and other heavy industrial machinery.

Applications:

The Torrington 35SF56 spherical plain bearing is designed for severe-duty industrial applications requiring high static and dynamic load capacity with the ability to compensate for shaft misalignment. Its fractured outer ring simplifies assembly while the phosphate-treated, MoS₂-coated bearing surfaces reduce friction and eliminate the need for rolling elements. Typical applications include hydraulic excavators, bulldozers, mining trucks, heavy lifting equipment, industrial presses, construction machinery, and other heavy-duty pivoting mechanisms.

Technical Specifications:

• Manufacturer Part Number (MPN): 35SF56
• Manufacturer: Torrington (Timken)
• Product Type: Spherical plain bearing
• Bearing Type: Radial spherical plain bearing (Type SF)
• Series: SF Inch Series
• Bore Diameter (ID): 3.500 in (88.900 mm)
• Outside Diameter (OD): 5.500 in (139.700 mm)
• Inner Ring Width: 3.062 in (77.775 mm)
• Outer Ring Width: 2.625 in (66.675 mm)
• Closure Type: Unsealed
• Bearing Material: Hardened steel
• Surface Finish: Phosphate-treated with molybdenum disulfide (MoS₂) coating
• Dynamic Load Rating: 132,000 lbf (587 kN)
• Static Load Rating: 410,000 lbf (1,824 kN)
• Misalignment Capability: Moderate angular misalignment
• Maximum Operating Temperature: 392°F (200°C)
• Weight: Approximately 10.7 lb (4.85 kg)
• Function: Supports heavy radial loads while accommodating oscillating motion and shaft misalignment.
• Features: Fractured outer ring for simplified assembly, self-lubricating MoS₂ coating, hardened steel rings, high load capacity, rugged construction, and long service life in severe-duty applications.

Common Replacements:

• Torrington 35SF56 spherical plain bearing
• Timken 35SF56 spherical plain bearing
• RBC B56-L spherical plain bearing