A gear well for a crusher and a crusher comprising the gear well

A gear well for a crusher comprising:

• a hub circumventing portion, arrangeable for circumventing at least a portion of a hub of the crusher, and comprising a groove having first and second side walls and a groove base;
• a pinion recess having a bottom;
• and
• a transition zone extending between an end of the hub circumventing portion and the pinion recess,
• wherein the transition zone provides a stepped transition of the groove from the hub circumventing portion to the bottom of the pinion recess,
• wherein the transition zone comprises a step for providing the stepped transition, and
• wherein the transition zone comprises an angled portion, which is angled with respect to a plane transverse to the central axis, and a first vertical portion, wherein the angled portion extends between the end of the hub circumventing portion and the first vertical portion, and the first vertical portion extends between the angled portion and the pinion recess.