5th Gear Synchronizer Hub (Ford Ranger 4WD 5-Speed, 2006–2011)
Description
This gear is made from high-quality carburized alloy steel (SAE 8620 or SAE 4320H) and undergoes a case hardening heat treatment, achieving a tooth surface hardness of HRC 58–62. This effectively improves wear and impact resistance, extending service life.
Specification
Tooth Form: Internal spline with external clutching-tooth shoulder (synchronizer duty)
Tooth Count: 33/29T
Material: Alloy case-hardening steel, SCM415 / SAE 8620 (or equivalent)
Heat Treatment: Carburized & quenched
Surface Hardness: HRC 58–62 (tough core retained)
Manufacturing: CNC turning/milling; internal spline broaching; dog-tooth finishing & deburring; faces precision-ground
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Model:S5Y1-17-620 、齒殼PMB-010 、(TKK-178-S) 、TKK-178-H