Effect of Hob Sharpening Errors
Effect of Hob Sharpening Errors
Hobs resharpened on an arbor in resharpening machine that runs eccentrically will result in sharpening errors that give the same 11wandering 11profile characteristic to an involute profile as an eccentrically mounted properly sharpened hob in a hobbing machine. Other sharpening errors to the base rack that effect hob profile are
Hob cutting faces are sharpened with negative rake.
Hob cutting faces are sharpened with positive rake.
Hob cutting faces are sharpened by unequal amounts resulting in uneven flute spacing.
A hob sharpened with incorrect lead will result in one end of the hob being larger in diameter than the other. As the hob is shifted across its usable life in the hobbing machine, a change in the size of the work piece will be evident.
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Pre-grinding Rectangle Spline Hob
Pre-grinding Rectangle Spline HobProfile standard: GBHSS material: M2, M35Accurac: Class AThe hob is... - Module and DP Gear Hobs with 14°30′ – 45°
- Hobs for parallel side splines
- HSS M35, M2E Gear Hob Cutter with Module
- PA20° Pre-shaving Hob with Module m2.75
- Timing Pulley Hob for STS 5M
- Spline gear hob with Involute flanks to DIN 5480
