When the axis of the pinion gear is parallel...

Question 1 of 270705eccefa1bacbc34ba4d4718e

When the axis of the pinion gear is parallel to the center of the bevel gear, similar to right angle drive gear shown in the illustration, the drive would be identified as a __________. See illustration GS-0128.

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Question 1 of 27070

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🔍 Key Concepts

• Bevel gear types – how tooth shape and shaft alignment differ between straight-tooth, spiral bevel, Zerol, and hypoid gears • Axis relationship – whether the gear shafts intersect at a point or are offset/parallel but not intersecting • Tooth shape in the illustration – notice the curvature and whether the teeth are straight, curved, or zero-spiral

💭 Think About

• Look closely at the picture: do the gear teeth appear straight, gently curved with little spiral, or heavily spiraled like a screw? • Think about which gear type is specifically used when the pinion shaft does NOT intersect the center of the larger bevel gear, but runs parallel or offset to it. • Ask yourself which of these types (spiral bevel, zerol, straight-tooth bevel, hypoid) is known for allowing the shafts to be offset while still transmitting right‑angle motion.

✅ Before You Answer

• Confirm whether the gear teeth are straight or clearly curved/spiraled in the illustration. • Decide if the gear axes intersect at a common point (typical of standard bevel gears) or are offset/parallel as described in the question. • Match the observed tooth curvature and shaft offset to the correct named gear type from the choices.