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 - units 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 flingers.
• Unit system: Metric.
• Bore diameter d: 50mm.
• Overall width A: 43mm.
• Flange width A₁: 15mm.
• Depth of centring recess A₃H14: 3.2mm.
• Standout of end cover A₅: 29.5mm.
• Overall bearing width B: 51.6mm.
• Overall bearing width B₁: 51.6mm.
• Distance from locking device side face to thread centre B₄: 9mm.
• Centering diameter D_aH11: 125.4mm.
• Top external diameter D_b1: 107mm.
• Base external diameter D_b2: 118mm.
• Distance between attachment bolts J: 111mm.
• Overall length L: 143mm.
• Diameter of attachment bolt hole N: 18mm.
• Distance from locking device side face to raceway centre s₁: 32.6mm.
• Overall unit width T: 60.6mm.
• Housing thread for grease fitting R_G: 1/4-28 UNF.
• Axial position of the housing thread R₁: 28.5mm.
• 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.
• Distance of dowel pins J₆: 129mm.
• Axial offset of dowel pins J₇: 35.5mm.
• Recommended diameter for dowel pins N₄: 4mm.
• Basic dynamic load rating C: 35.1kN.
• Basic static load rating C₀: 23.2kN.
• Fatigue load limit P_u: 0.98kN.
• Limiting speed: 4000r/min.
• Notes: (with shaft tolerance h6).
• Thread grub screw G₂: M10x1.
• Hexagonal key size for grub screw N: 5mm.
• Recommended tightening torque for grub screw: 16.5Nm.
• Recommended diameter for attachment bolts, mm G: 16mm.
• Recommended diameter for attachment bolts, inch G: 0.625in.
• Housing: FY 510 M.
• Bearing: YAR 210-2F.
• End cover: ECY 210.