Sprag-Type Freewheel-Clutches

Transmittable Torque based on wall thickness and materialThe diagrams offer you a survey on the influences of the material of the mating parts for the factors of wall thicknessD/D L = 1.2/1.4/1.6 in relation to the nominal torque.For your orientation some material data:σ bw = 400 N/mm 2 34 CrMo 4V (eq. AISI 4135) – case hardened, HRC = 60 +4 ; Eht ≥ 1.3 mm16 MnCr 5 (eq. AISI 5115) – case hardened, HRC = 60 +4 ; Eht ≥ 1.3 mmσ bw = 540 N/mm 2 42 Cr Mo 4V (eq. AISI 4140) – case hardened, HRC = 60 +4 ; Eht ≥ 1.3 mmσ bw = 600 N/mm 2 20 MnCr 5 (eq. AISI 5120) – case hardened, HRC = 60 +4 ; Eht ≥ 1.3 mmσ bw = 750 N/mm 2 100 Cr 6 (eq. AISI 52100) – hardened and tempered; HRC = 60 +4For your information Eht = Hardening depth!Series 400GMN Sprag-Type-ClutchesBasic Information – Torque DeterminationNENN-DREHMOMENT Nominal Torque M in percent M in %140%120%100%D/D L = 1,680%D/D L = 1,460%40%D/D L = 1,220%0%400 450 500 550 600 650 700 750zulässige max. Dauerbiegewechselfestigkeit alternating bending strength σ BW [N/mm 2 ]Typenreihe 8000Nominal Torque M in percentmax. alternating bending strength σ bw [N/mm 2 ]Aditionel information for torque determination (like safety factors) you will find on page 9, or you might contact ourtechnical staff, if in doubt.• • • • example how to use the diagram for 20MnCr5 – case hardened, HRC 60+4, Eht = 1.38