01|2016 - Ringfeder

1 US01|2016 Locking Assemblies & Locking ElementsPartner for ASSEMBLIES & LOCKING ELEMENTS US 08| 2014 Today s Ringfeder POWER TRANSMISSION GMBH was founded in 1922 in Krefeld, Germany as patent exploitation company for Friction Springs. Today we are a global supplier of top-quality products for the power transmission- and damp- ing technology industries. Ringfeder POWER TRANS-MISSION is one of the leading companies in selected market niches. Through our sustainable, or-ganic growth, targeted acquisitions and attentive proximity to our customers, we are constantly supplementing and developing our range of products in cooperation with our customers and deliver service for the future.

2 Beyond that, Ringfeder POWER TRANS-MISSION is one of the prime addresses in regard to technical know-how for our discerning to your system supplier for every aspect of power transmission2 Mars Rover: Courtesy NASA/JPL-CaltechOur world-renowned German brands Ringfeder , TSCHAN and GERWAH stand for customer-oriented solutions that fulfil the high-est requirements and guarantee our customers a trouble-free sys-tem operation. Under the brand name ECOLOC we offer reliable products off the shelf. The brand Ringfeder is world s leading in the sector of lock- ing devices and damping technology.

3 The GERWAH brand stands for torsionally rigid, elastic couplings as well as safety couplings in the lower torque range, whereas TSCHAN stands for non-shiftable elastic, highly-elastic and torsionally rigid shaft couplings in the higher torque range. The ECOLOC brand includes cost-efficient alternatives from the premium range available for standard , the product portfolio comprises high-quality products with the best cost-benefit ratio, covering all aspects of power trans- AssembliesCharacteristics.

4 Page 8 Ringfeder RfN 7012-IN/7012 .. Page 10 Ringfeder RfN .. Page 16 Ringfeder RfN Page 20 Ringfeder RfN Page 24 Ringfeder RfN 7014 .. Page 28 Ringfeder RfN .. Page 30 Ringfeder RfN .. Page 32 Ringfeder RfN 7515 .. Page 34 All technical details and information are non-binding and cannot be used as a basis for legal claims. The user is obligated to determine whether the represented products meet his requi-rements. We reserve the right at all times to carry out modifications in the interests of technical progress.

5 Upon the issue of this catalogue all previous brochures and questionnaires on the products displayed are no longer Assemblies for bending loadsCharacteristics .. Page 48 Ringfeder RfN 7012 .. Page 50 Ringfeder RfN .. Page 54 Ringfeder RfN .. Page 56 Ringfeder RfN .. Page 58 Ringfeder RfN 7515 .. Page 60 Locking Assemblies with central lock nutRINGFEDER RfN 7070 .. Page 38 Ringfeder RfN 7075 .. Page 40 Ringfeder RfN 7085 .. Page 42 Ringfeder RfN 7090 stainless steel ..Page 444 ContentContentContentLocking ElementsCharacteristics.

6 Page 64 Ringfeder RfN 8006 .. Page 66 Ringfeder RfN 8006 GSA .. Page 70 Special SolutionsSpecial Locking Assemblies .. Page 88 Installation and removal instructionsLocking Assemblies .. Page 94 Locking Elements .. Page 108 Locking Assemblies Characteristics .. Page 74 Ringfeder RfN 7012-IN/7012 .. Page 76 Ringfeder RfN .. Page 80 Ringfeder RfN 7061 .. Page 82 Ringfeder RfN 7110 .. Page 84 Ringfeder RfN 8006 .. Page 86 Locking ElementsCalculation of hub and shaft Page 92 STAINLES S STEE L5 Ringfeder Locking Assemblies6 RfN 7012 RfN 7014 RfN 75157 Characteristics Inexpensive manufacture the large tolerances that are possible and the simple turning process guarantee inexpensive installation only a few screws need to be tightened, alignment to precise angles between the hub and shaft is possible in any position.

7 No fitting work is dismantling Ringfeder Locking Assemblies are fitted with threaded extraction holes, so that no additional auxiliary equipment is necessary, series RfN 7012 is constant reverse-torsion fatigue strength shaft and hub are ungrooved, so that there is no weakening of these components. Shaft and hub can be designed to be considerably smaller (light, cost and space-saving design possible).No danger of deflection Ringfeder Locking Assemblies are absolutely similar to overload protection after the set frictional connection force has been exceeded the Locking Assemblies simply slide.

8 Valuable machine parts are protected. The Locking Assemblies are subject to the same laws as any other connection with force transmission by friction - not suitable as sliding maintenance-free no follow-up Locking Assemblies8 Explanations to tablesBasic dimensions when screws are not tightenedd = Inner diameter (decimal notation)d = Inner ring diameterD = Outer diameterDB1 = Collar outer diameter L = Overall length L1 = Overall length without screws L3 = Width of inner ring L4 = Installation length up to collar T = Transmissible torque at given TAFax = Transmissible axial forcepW = Surface pressure on shaft at given TA pN = Surface pressure on hub at given TA nSc = Quantity of screwsDG =

9 ThreadSW = Wrench sizeTA = Max. tightened torque of the clamping screwsDN min = Min. hub outer diameter depending of the given hub yield point (Rp0,2)Tmax = Maximum transmissible torqueGw = Weight9 DNLN 2 L3 Locking Assembly RfN 7012 Belt pulleyLdDL3L1 Locking Assembly RfN 7012 DimensionsLocking Assembly RfN 7012 Location Calculation of hubs see on page 92-93 (Calculation possible for other hub forms in our calculation program) Ringfeder Locking AssembliesRfN 7012-INCharacteristicsAs the industry standard, the RfN 7012/RfN 7012-IN Locking Assembly is suitable for most applications.

10 Transmission of high loads up to 4 RfN 7012/RfN 7012-IN Locking Assemblies can be used in series, the transmis-sible torques and axial forces are added. (Please contact our specialists for assistance).Bending moment and radial loads Combined loads can be transmitted. (Please contact our specialists for assistance).Simplified manufacture RfN 7012/RfN 7012-IN Locking Assemblies can bridge large clearances without the loss of trans-mission risk to contamination During the tightening process the functional surfaces of the device are under pressure, sufficient enough to keep contaminants out, thereby preserving the integ-rity of the transmission values The screw tightening torque can be varied, thus allowing for different torque trans-mission values.