1. Sliding bearings can also be lubricated with grease. The following points should be considered when selecting grease: (1) When the bearing load is large and the rotation speed is low, the grease with a small penetration degree should be selected, and vice versa. High-speed bearings use grease with a small degree of penetration and good mechanical stability. Special attention is paid to the lower viscosity of the base oil of the grease. (2) The dropping point of the selected grease is generally higher than the working temperature of 20-30 ° C. In the case of continuous operation at high temperature, be careful not to exceed the allowable operating temperature range of the grease. (3) When the sliding bearing works in water or humid environment, it should choose calcium-based, aluminum-based or lithium-based grease with good water resistance. (4) Select a grease with good adhesion. 2. Selection of grease for sliding bearings: The load is <1MPa, the circumferential speed of the journal is less than 1m/s, the maximum working temperature is 75°C, and the calcium base grease No. 3 is used; The load is 1-6.5MPa, the circumferential speed of the journal is 0.5-5m/s, the maximum working temperature is 55°C, and the calcium base grease No. 2 is used; The load is >6.5MPa, the circumferential speed of the journal is less than 0.5m/s, the maximum working temperature is 75°C, and the calcium base grease No. 3 is used; The load is <6.5MPa, the circumferential speed of the journal is 0.5-5m/s, the maximum working temperature is 120°C, and the No. 2 lithium grease is used. The load is >6.5MPa, the circumferential speed of the journal is less than 0.5m/s, the maximum working temperature is 110°C, and the calcium-sodium grease of No. 2 is used; The load is 1-6.5MPa, the circumferential speed of the journal is less than 1m/s, the maximum working temperature is 50-100°C, and the No. 2 lithium grease is used. The load is >5MPa, the circumferential speed of the journal is 0.5m/s, the maximum working temperature is 60°C, and the No. 2 calendering grease is used; Calcium-sodium based grease should be considered in a humid environment at temperatures between 75 and 120 °C. In a humid environment, the working temperature is below 75 ° C, there is no calcium base grease No. 3, and aluminum base grease can also be used. When the working temperature is 110-120 ° C, lithium base grease or sulfhydryl base grease can be used. When concentrated lubrication, the consistency is smaller. 3. Lubrication cycle of grease for sliding bearings: Occasionally, unimportant parts: shaft speed <200r/min, lubrication cycle once every 5 days; shaft speed >200r/min, lubrication cycle once every 3 days. Intermittent operation: shaft speed <200r/min, lubrication cycle once every 2 days; shaft speed >200r/min, lubrication cycle once every day. Continuous operation, working temperature is less than 40 °C: shaft speed <200r/min, lubrication cycle once every day; shaft speed>200r/min, lubrication cycle once per shift. Continuous operation, working temperature 40-100 °C: shaft speed <200r/min, lubrication cycle once per shift; shaft speed >200r/min, lubrication cycle twice per shift. Ductile cast iron pole line hardware refers to various components and fittings used in the construction and installation of utility poles and overhead power lines. These components are typically made of ASTM A536 Ductile Iron, a durable and strong material that is able to withstand the weight and tension of power lines. Yokelink supply a full line of Ductile cast iron poleline hardwares, , provide part number to get a quote on these products, leave your message, or send us an email to get answers for your questions or product you needed. Low Pressure Casting, gravity cast, Die Casting, Sand Casting, A536 Ductile Iron, cast iron, grey iron cast, austempered ductile iron, Cast Iron Pole line hardware Ningbo Yokelink Machinery Co.,Limited , https://www.yokelink.com
Some common examples of Ductile cast iron pole line hardware include Thimble Clevis, Insulator mounting brackets, Pole top insulator Bracket, Vertical Insulator Bracket, Cuout and Arrester Bracket, messenger extension, Aerial Suspension Clamp, Crossarm Grid Gain, Guy Hook and Pole Eye Plate. These components are essential for supporting and securing power lines, insulators, and other equipment on utility poles.
Cast iron pole line hardware is known for its long-lasting durability and resistance to corrosion, making it a popular choice for utility companies and power line installers. It is important to use high-quality and properly installed hardware to ensure the safety and reliability of overhead power lines.