Product Description

Self-lubricating bearings, as the name suggests, provide their own lubrication during operation without requiring application of grease or oil lubricants. Due to this, self-lubricating bearings are also referred to as maintenance-free or greaseless bearings as they require no relubrication or grease. Self-lubricating bearings work by having lubricant impregnated within the sliding layer of the bearing. This lubricant can either be liquid (oil) or solid (graphite, MoS2, lead) based on the requirements of the application (such as operating temperature). As the bearing operates, the lubricant is released through pores in the sliding layer, lubricating the bearing surface. The lubricant is uniformly dispersed throughout the sliding layer and thus there is no reduction in low friction bearing performance, even if the sliding layer becomes worn. A "running-in" surface is also usually included at the top of the sliding layer to provide low friction bearing performance at start up before the impregnated lubricant reaches the bearing surface.

Industries

• Agriculture
• Cement
• Fans and Blowers
• Food and Beverage
• Material Handling
• Medical and Health Care
• Packaging
• Paper
• Print
• Quarrying, Mining and Construction
• Textile and Leather
• Utilities

Benefits

• Simple cost effective bearing arrangement - Unit can be regressed.
• Can be used on fabricated and general engineering equipment.
• Secure shaft locking for all speed, load and vibration conditions.
• Effective sealing for all conditions and applications.
• Protects from the dangers of rotating shaft ends.

Specifications

• Locking method: Grub screw.
• Purpose specific: For agricultural applications.
• Housing material: Cast iron.
• Sealing solution: Standard seals with additional flinger.
• Unit system: Metric.
• Bore diameter d: 25mm.
• Base width A: 36mm.
• Top width A₁: 22mm.
• Width inner ring B: 34.1mm.
• Overall bearing width B₁: 34.1mm.
• Overall height H: 70mm.
• Height of spherical seat centre H₁: 36.5mm.
• Distance between attachment bolts J: 50.8mm.
• Overall length L: 70mm.
• Distance from locking device side face to raceway centre s₁: 19.8mm.
• Housing thread for the grease fitting R_G: 1/4-28 UNF.
• Axial position of the housing thread R₁: 2mm.
• Angular position of the housing thread R: 45.
• Diameter of head sphere of grease fitting D_N: 6.5mm.
• Hexagonal key size for the grease fitting SW_N: 7mm.
• Thread of the grease fitting G_N: 1/4-28 SAE-LT.
• Basic dynamic load rating mm: 14kN.
• Basic static load rating C₀: 7.8kN.
• Fatigue load limit P_u: 0.335kN.
• Limiting speed: 7000r/min.
• Housing thread for attachment bolts G: M10.
• Thread length G₁: 15mm.
• Hexagonal key size for grub screw N: 3mm.
• Recommended tightening torque for grub screw: 4Nm.
• Housing: SYF 505.
• Bearing: YAR 205-2F.