A system of pin storage for storing the next full 'rack' of pins after delivery to it by the pin elevator system – this can exist within (or as part of) the table, or above and/or behind the table.

Pin elevator – brings pins upwards out of the lane's pit to the top of the unit for re-setting for successive frames, usually in the form of a vertically-oriented toroid-shape system at the extreme rear of the pinspotter for tenpin bowling units, to deliver pins upwards from the pit into the pin storage system.

Pit – a collection area behind the lane where balls and struck pins collect for sorting, a part of any regulation bowling lane.

Deck (Brunswick A series only) – a fixed sheet metal enclosure, usually fastened to the spotting table's framework and diagonal forward frame edges, provides secondary protection for the spotting table system from improperly thrown balls (in addition to the sweep bar) and flying pins, and covers the pin chutes that are used to transfer the pins from the characteristic, cage-like Brunswick-design rotating pin storage turret above the table downwards into the deck for transfer onto the lane's pin deck area.

Table – also used in pre-automated manual units (often, as their sole mechanical device) places the pins onto the lane for the next frame and lifts the remaining pins for the sweep bar to remove fallen pins for the bowler's next roll.

In most pinsetters, the sweep bar is triggered as soon as the ball enters the pit, usually via an optical sensor that detects the ball motion. The sweep bar may also stay lowered throughout the pinsetter operating cycle, to act as the primary physical protective barrier against improperly thrown balls.

Sweep bar – removes fallen and leftover pins from the pin deck.

Common part descriptions for just about all pinspotting units consist of: Several types of bowling make use of different designs for machines due to the different size and shape of the pins and balls. The design of the machines varies, depending both in individual company's hardware designs, and for the particular bowling sport's playing rules and equipment specifications.

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