Group: Nord-Lock Group
Catalog excerpts
Superbolt Expansion Bolts Innovative technology for large machinery couplings
Open the catalog to page 1Superbolt Expansion Bolts Problems Heavy machinery requires bolting elements that can be easily installed and removed. This is especially true on large and high-performance flange couplings where the bolting elements produce an interference fit for proper torque transfer. However, these type of applications present a number of challenges: Superbolt Expansion Bolts Tensioner A pulls the tapered stud into the expanding tapered sleeve which is split, thus generating a radial force. Machining Requirements Coupling flanges requiring tight or interference fit type bolting elements are expensive...
Open the catalog to page 2Advantages of Superbolt Expansion Bolts • Substantial cost advantages: elimination of time-consuming and destructive removal procedures, expensive repair of distorted bores and also the purchase of new bolting elements. Safety: simple and quick installation and removal, only hand tools are required. Improved worker safety. No honing or machining required: MJTs compensate for small variations. Only line boring of holes is necessary. Re-usable: The Expansion Bolt split sleeve springs back to original size after each removal. Product Development Two simple innovations in the design of the...
Open the catalog to page 3Types of Superbolt Expansion Bolts Expansion Bolt for through holes. Access & operation from both sides. Expansion Bolt for blind holes. Access & operation from one side. Expansion Bolt for threadless bores. Access & operation from one side. Expansion Bolt, double sided. Access & operation from both sides. Superbolt Expansion Bolts have received type and individual approvals from several well-known institutes around the world. They include: • American Bureau of Shipping • Lloyd's Register Slide split tapered sleeve (2) onto the tapered stud (1) and place On side A, place spacer (3) in the...
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