Tests & Results

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The conventional heat treat process for hypoid drive pinion is gas carburizing with oil quench. Conventional induction contour hardening is highly complicated due to the complex part geometry. The TSH technology makes induction contour hardening of this part practical.

CV Hypoid Pinion:
Length: 270 mm (10.6 “)
Teeth: 7
Module: 0.5
Weight: 6.3kg (14#)
Steel type: 60LH

Commercial and Light Axel Drive Pinions
Drive Pinions
Universal Joints
Side Pinions
Output Shafts
Torsional Shafts
Leaf Spring
Bearings
Tillage Chisel
Gears

2nd Generation LH60 & LH80 steels provided for Light Axle Pinion

Fatigue Testing

60LH B10 = 685,524 cycles
80LH B10 = 671,505
8625H B10 = 191,252 (Carburized Production)

Residual Stress

60LH -100 to -135 ksi
8625H -20 to -35 (Carburized)

Replaces carburizing and alloy steels and a better option than induction hardening

Cycle reduction from 8-15 hrs to 1-2 minutes
Strength improvement 1.10+
Impact strength 1.7+
Fatigue limit improvement 1.5+
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Belcard is the largest supplier of drive shafts in the FSU
Belcard journal crosses are made using LH steels and TSH process.
Successfully tested by US manufacturers

Thermal Imaging

Quenching

Induction Heating And Quenching