RINGFEDER POWER TRANSMISSION GMBH

The new Locking Assembly series RINGFEDER ® RfN 7012.2 is specially designed to fulfil the requirements of constantly increasing bending moments for conveyor pulleys. The challenge was to develop a product with the same dimensions as the standard RINGFEDER ® RfN 7012 to fit into existing end discs – Attention: yield point of end disc has to be checked – so that also material handling equipment at hand can be upgraded. At the same time the Locking Assembly should carry a multiple of the bending moments of the standard RINGFEDER ® RfN 7012. If the pressures are too high for the application please note datasheets Mb 20% - Mb 80% with reduced bending moments. NEW The new Locking Assembly series RINGFEDER ® RfN 7012.2 is specially designed to fulfil the requirements of constantly increasing bending moments for conveyor pulleys. The challenge was to develop a product with the same dimensions as the standard RINGFEDER ® RfN 7012 to fit into existing end discs – yield point of end disc...

For superb centering and high torque transmission, this dual tapered device reflects the best in RINGFEDER engineering expertise. This style is in two types, 7015.0 for general engineering applications and 7015.1 for conveyor pulley applications. Available in sizes 100 to 600 mm. If the pressures are too high for the application please note datasheets Mb 20% - Mb 80% with reduced bending moments. A bending moment, created by radial forces, results in an additional load for the Locking Assembly, shaft and hub. This load creates an additional pressure, works in rotation and has to be superpositioned with the pressure resulting from the Locking Assembly. For a viable connection, a minimum surface pressure at the contact areas between Locking Assembly, shaft and hub must be maintained, as soon as shaft and hub have to take up the maximal pressures. Additionally, the listed torque values (T) have been reduced due to the additional bending moments. To achieve lower stresses for the...

This version of the RfN 7015 is designed for high bending load applications such as conveyor pulleys, by providing lower shaft and hub pressures. If the pressures are too high for the application please note datasheets Mb 20% - Mb 80% with reduced bending moments. Characteristics Version of the Locking Assembly RfN 7015.0 with lower surface pressure for reduction of the stresses at soft end discs. Explanation to table A bending moment, created by radial forces, results in an additional load for the Locking Assembly, shaft and hub. This load creates an additional pressure, works in rotation and has to be superpositioned with the pressure resulting from the Locking Assembly. For a viable connection, a minimum surface pressure at the contact areas between Locking Assembly, shaft and hub must be maintained, as soon as shaft and hub have to take up the maximal pressures. Additionally, the listed torque values (T) have been reduced due to the additional bending moments. To achieve...

Especially for the bending moment transmission designed 3 part Locking Assembly with reduced stresses in the Locking Assembly itself. Special Features - Through the long and flat cones one Locking Assembly RfN 7515 can transmit torques and axial forces and bending loads. At mounting is a small axial movement from Locking Assembly and hub. Bending moment and radial loads – combined loads can be transmitted (Please contact our specialists for assistance). Excellent centering ability – with a relatively wide design. Example applications: Belt drums, gear wheels If the pressures are too high for the application please note datasheets Mb 20% - Mb 80% with reduced bending moments. Characteristics Especially for the bending moment transmission designed 3 part Locking Assembly with reduced stresses in the Locking Assembly itself. Explanation to table A bending moment, created by radial forces, results in an additional load for the Locking Assembly, shaft and hub. This load creates an...

Precise axial and radial positioning of the components. Easy to connect and to release – no seizures along the shaft. Perfect for engaged connections. Excellent concentricity and radial run. Precise axial and radial positioning of the components Easy to connect and to release – no seizures along the shaft Perfect for engaged connections Excellent concentricity and radial run Single locking nut for quick installation and settings Minimal external diameter for assembling thin-walled components Excellent torque transmission even during partial seizures of the shaft Suitable for grooveless and keyless shafts Lightweight, low mass moment of inertia

Precise axial and radial positioning of the components. Easy to connect and to release – no seizures along the shaft. Perfect for engaged connections. Excellent concentricity and radial run. Precise axial and radial positioning of the components Easy to connect and to release – no seizures along the shaft Perfect for engaged connections Excellent concentricity and radial run Single locking nut for quick installation and settings Minimal external diameter for assembling thin-walled components Excellent torque transmission even during partial seizures of the shaft Suitable for grooveless and keyless shafts Lightweight, low mass moment of inertia

Precise axial and radial positioning of the components. Easy to connect and to release – no seizures along the shaft. Perfect for engaged connections. Excellent concentricity and radial run. Characteristics Precise axial and radial positioning of the components Easy to connect and to release – no seizures along the shaft Perfect for engaged connections Excellent concentricity and radial run Single locking nut for quick installation and settings Minimal external diameter for assembling thin-walled components Excellent torque transmission even during partial seizures of the shaft Suitable for grooveless and keyless shafts Lightweight, low mass moment of inertia Basic dimensions when screws are not tightened d = Inner diameter D = Outer diameter L = Overall width L1 = Installation length without Locking nut SW = Wrench size T = Transmissible torque at given TA F ax = Transmissible axial force pW = Surface pressure on shaft at given TA pN = Surface pressure on hub at given TA TA =...

Precise axial and radial positioning of the components. Easy to connect and to release – no seizures along the shaft. Perfect for engaged connections. Excellent concentricity and radial run. Characteristics Precise axial and radial positioning of the components Easy to connect and to release – no seizures along the shaft Perfect for engaged connections Excellent concentricity and radial run Single locking nut for quick installation and settings Minimal external diameter for assembling thin-walled components Excellent torque transmission even during partial seizures of the shaft Suitable for grooveless and keyless shafts Lightweight, low mass moment of inertia Basic dimensions when screws are not tightened d = Inner diameter D = Outer diameter L = Overall width L1 = Installation length without Locking nut SW = Wrench size T = Transmissible torque at given TA F ax = Transmissible axial force pW = Surface pressure on shaft at given TA pN = Surface pressure on hub at given TA TA =...

Locking Elements consist of an internal and external tapered ring. When axial force is exerted on a set of Locking Elements, radial clamping pressures are generated on the shaft and in the hub bore providing a frictional connection. Units may be stacked up to three elements deep for greater torques. For light to medium duty applications. Characteristics Customized application – by varying the number of Locking Elements, size and quantity of clamping screws, the connection can be adapted to fit most applications concerning surface pressures, materials, hub/shaft dimensions and available mounting space. Transmission of high loads – to increase the transmissible torque and axial forces up to 4 Locking Elements can be used in series. Maximum reliability – no matter whether the connection is subjected to static, pulsating, dynamic or intermittent loads. Simple manufacture – shaft and hub are designed without keyway. Apart from this, relatively large tolerances are admissible. Easy...

The slit versions are useful in applications requiring the bridging of bigger tolerances and/or higher torques. Stacking of the elements is not recommended. Characteristics Customized application – by varying the number of Locking Elements, size and quantity of clamping screws, the connection can be adapted to fit most applications concerning surface pressures, materials, hub/shaft dimensions and available mounting space. Transmission of high loads – to increase the transmissible torque and axial forces up to 4 Locking Elements can be used in series. Maximum reliability – no matter whether the connection is subjected to static, pulsating, dynamic or intermittent loads. Simple manufacture – shaft and hub are designed without keyway. Apart from this, relatively large tolerances are admissible. Easy adjustability – Locking Elements work without positive connection. So they can be adjusted at any place to any position by following the simple installation and removal...