Self-lubricating bearings, as the name suggests, provide their own lubrication during operation without requiring application of grease or oil lubricants. RHP SF55 Cast Iron Pillow Block Unit 55mm Bore. 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. Simple cost effective bearing arrangement - units can be regreased.
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. Shaft Diameter (d): 55.00mm.
Housing Length (L): 161.9mm. Housing Width (L): 161.9mm. World of Supply is a UK-based online distributor of leading-brand engineering, DIY and business consumables. Our site located in the heart of the UK houses both our administrative and warehousing facilities. Our team is very experienced within the online realm, we can turn around products extremely efficiently at an affordable price.We can offer high quality support on your journey with us. World Of Supply - Tel: 0121 585 5920. Shelah Rd, Halesowen B63 3XL.