Cam rings

Cam rings of polyurethane 92 ShoreA (standard)

1) DThe maximum speed must be observed. Please refer to the Operating Instructions for further information on permitted shaft misalignment.

Cam rings of polyurethane 95 ShoreA (Ordering option -Z and order code K01)

1) The maximum speed must be observed. Please refer to the Operating Instructions for further information on permitted shaft misalignment.

Cam rings of polyurethane 64 ShoreD (Ordering option -Z and order code K04)

1) The maximum speed must be observed. Please refer to the Operating Instructions for further information on permitted shaft misalignment.

Torsional stiffness and damping

The values stated in the above table apply to a capacity utilization of 50 %, an excitation amplitude of 10 % TKN with frequency 10 Hz and an ambient temperature of 20 °C. The dynamic torsional stiffness (C_Tdyn) is load-dependent and increases in proportion to capacity utilization. The following table shows the correction factors for different nominal load.

C_Tdyn = C_{Tdyn 50 %} • FKC

Furthermore, torsional stiffness and damping depend on the ambient temperature, the frequency and the amplitude of the torsional vibration excitation. More precise torsional stiffness and damping parameters on request.

With flexible couplings the manufacturing process of the rubber elements and their aging primarily influence the stiffness value C_Tdyn. For this reason calculation must be made with a tolerance for the dynamic stiffness of ±20 %. The specified damping coefficient ? is a minimum value with the result that the damping performance of the coupling corresponds at least to the specified value.

Permitted shaft misalignment

The permitted shaft misalignment depends on the operating speed. As the speed increases, lower shaft misalignment values are permitted. The following table shows the correction factors for different speeds. The maximum speed depending on the respective coupling size and type must be observed!

?K_zul = ?K₁₅₀₀ • FKV

The axial misalignment may occur dynamically at frequencies up to 10 Hz. For fitting, the maximum gap dimension of S2 max. = S2 + ?S2 and the minimum gap dimension of S2 min. = S2 - ?S2 are permitted.

The shaft misalignments ?K_a, ?K_r und ?K_w may occur simultaneously (see under "Couplings"/"Technical Informations"/"Shaf misalignment").

Assignment of N-BIPEX sizes to output P_M of IEC standard motors

The assignment applies for an service factor of 1.25 and the use of a standard cam ring (92 ShoreA).