Standard_Parts_Catalogue

| Information for Loads Page 2133 As soon as a gap I remains between the guide and the indexing bore hole opposite, the load can be reduced to a flexure rod clamped in at one side. With this approach, the computation is made against the bending of the indexing plunger as a case of failure. Flexure loads Formulas for computation Resistance torque Bending stress Bending strength W = π x d³ 32 M b = σ b x W F = M b = σ b x π x d³ l l x 32 d Bolt diameter Max. flexural strength F in N, acc. to material and gap l differentiated C45Pb / 1.0504 X 10 CrNiS 18 9 / 1.4305 l = 2 mm l = 3 mm l = 2 mm l = 3 mm  3    740  490   760  510  4   1750  1170  1820 1210  5   3430 2290  3550 2370  6   5930 3950  6140 4100  8 14070 9380 14570 9710 10 27480 18320 28470 18980 12 47490 31660 49190 32790 16 112590 75063 116610 77740 Computing examples, load values Example: Indexing plungers with a bolt diameter of 5 mm made of steel with a yield limit of R e = 560 N/mm², computation against permanent deformation, the maximum permissible flexural strength is wanted: F per = 560 N/mm² x π x (5mm)³ = 3430 N 2mm x 32 The yield or substitute yield limit (Re / Rp 0,2) shown in the table opposite has been determine in tension tests involving tension specimen in accordance with DIN 50125- B6-30. These tests constitute the basis for the load bearing details given herein. Material characteristics On principle, the design also needs an adequate safety coefficient to be taken into account. The usual safety coefficients under static load 1,2 to 1,5; pulsating 1,8 to 2,4 and alternating 3 to 4. Disclaimer: Our information and recommendations are given with non-binding effect and ruling out any liability, unless we have expressly committed ourselves in writing to provide information and recommendations. All products are standard elements for versatile uses and as such are subject to extensive standard tests. You should carry out your own test series to verify whether a certain product is suitable for your specific applications. We cannot be held responsible for this. Safety information Computing the Strength of Indexing Plungers / Cam Action Plungers continued Material R e Description Material no. in N/mm²(≈ per. flexural tension σ b ) C45Pb 1.0504 560 X 10 CrNiS 18 9 AISI 303 580