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

• Variant: General.
• Sealing solution: Double-lip seals.
• Bearing position: Locating.
• Shaft diameter d_a: 50mm.
• Housing foot width A: 70mm.
• Inner ring width B: 65mm.
• Housing height H: 131mm.
• Height base to centre H₁: 70mm.
• Housing foot height H₂: 28mm.
• Distance between attachment bolts J: 210mm.
• Housing length L: 255mm.
• Length of attachment bolt hole N: 24mm.
• Width foot slot width N₁: 18mm.
• Distance bearing centreline to end cover A₃: 62mm.
• Distance housing end to end cover A₅: 29.5mm.
• Distance bearing centreline to shaft end b_amin: 34mm.
• Distance bearing centreline to shaft end b_amax: 55mm.
• Distance of dowel pins J₆: 234mm.
• Distance of dowel pins J₇: 26mm.
• Pin hole diameter N₄max: 8mm.
• Basic dynamic load rating C: 104kN.
• Basic static load rating C₀: 108kN.
• Fatigue load limit P_u: 11.8kN.
• Limiting speed: 3300r/min.
• Calculation factor e: 0.24.
• Calculation factor Y₁: 2.8.
• Calculation factor Y₂: 4.2.
• Bearing mean diameter d_m: 70mm.
• Basic bearing designation: 22210 E.
• Breaking load P₀: 190kN.
• Breaking load P₅₅: 330kN.
• Breaking load P₉₀: 200kN.
• Breaking load P₁₂₀: 130kN.
• Breaking load P₁₅₀: 115kN.
• Breaking load P₁₈₀: 140kN.
• Axial holding power P_a: 15kN.
• Attachment bolt diameter G: 16mm.
• Tightening torque for attachment bolts: 200Nm.
• Grub screws: M 6.
• Tightening torque for grub screws: 8Nm.
• Grease quantity for relubrication: 4g.
• End cover: ECY 210.