790143 Hub SF 1 3/8

The 790143 HUB SF 1 3/8 is a high-quality hub component produced by Blackmer, specifically designed for their positive displacement pump series. Supplied by KI Pumps of Waukesha, WI, this hub is recognized for its durability and precise fit within pump assemblies. Constructed from corrosion-resistant metal alloys such as steel or aluminum, the 790143 HUB ensures long-term operational reliability in demanding industrial environments. Its dimensions include an outer diameter of approximately 1 3/8 inches (34.9 mm) and a bore size compatible with standard pump shafts, typically around 1 3/8 inches, although specifications may vary by model. The hub features a machined, smooth surface with a central bore for secure mounting, complemented by bolt holes arranged in a standard pattern for stable attachment to pump components. Key features include a tapered or keyed bore (depending on model requirements) for accurate torque transfer and alignment, and compatibility with SF series Blackmer pumps. The 790143 HUB SF 1 3/8 is commonly used to replace worn or damaged hubs in positive displacement pump systems used in chemical processing, oil and gas, water treatment, and general industrial applications. It is ideal for maintenance professionals seeking OEM-standard, compatible parts for Blackmer SF series pumps. The hub ships individually in a sealed package, with no additional components included. Installation requires standard mechanical tools, such as wrenches and alignment tools. Maintenance includes periodic inspection for corrosion, wear, and proper fit; replacement should be performed if signs of damage or misalignment occur. The 790143 HUB SF 1 3/8 ensures reliable pump operation with minimal downtime, supporting the efficient functioning of Blackmer pumps in critical applications.