$77.70
This Rotex 55 spider coupling (Part # 0512000116) is a elastomeric insert designed for KTR Rotex Size 55 jaw couplings . Made from high-strength T-PUR material with 92 Shore A hardness, this orange spider sits between the coupling hubs to transmit torque, dampen vibrations, and compensate for minor shaft misalignments . It is ideal for use with vacuum pumps driven by electric motors where reliable, low-maintenance power transmission is required.
Spider Coupling, Rotex 55 - Part # 0512000116
Spider Coupling, Rotex 55 - Part # 0512000116
This is a flexible jaw coupling made by KTR. It is not a solid piece of metal. It is a specially shaped elastomer insert (often called a “spider”) that sits between two metal hubs .
One hub connects to your motor. The other connects to your pump. The spider transfers the spinning force from the motor to the pump.
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10 in stock
10 in stock
10 in stock
10 in stock
This Case Gasket (Part #300215) is made from high-quality cork. It sits between the main body parts of your Pfeiffer vacuum pump. Its job is simple but very important: it creates a tight seal. This seal stops air from leaking out and keeps dirt from getting in. A good gasket means your pump holds strong vacuum pressure. This specific gasket fits the Pfeiffer UNO 250A and DUO 250A models. If you notice oil sweating or leaking from the middle of your pump, this gasket may need to be replaced.
10 in stock
10 in stock
This Viton O-ring (Part# PL23970129) measures 65 mm inside diameter with a 5 mm cross-section. Made from Viton (FKM) , it offers excellent resistance to high heat, chemicals, oils, and fuels. It is commonly used in repair kits for Busch, Leybold, and Pfeiffer vacuum pumps and is ideal for creating tight, reliable seals in harsh environments .
10 in stock
This is the Pfeiffer Part# PVK025A Vane Kit for the UNO 250A vacuum pump . This kit includes two vanes and two springs . for optimal performance, this vane kit provides a reliable solution for routine maintenance (recommended every 4 years) and helps restore your pump’s original vacuum performance .
10 in stock
Out of stock
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