#India's Best industrial material dealers #India's top bearing dealers #bearing special offers #planttrees #savewater In a typical jaw crusher, two outer bearings located on either side of the main frame support an eccentric shaft, while two inner bearings support a movable jaw. These are commonly known as “Pitman” bearings. The reciprocating motion of the shaft moves the Pitman against a second, stationary jaw A jaw crusher is a large piece of equipment that's used in mine and ore processing plants to crush rocks. The equipment was first introduced back in 1858 by inventor Eli Whitey Black who primarily developed machinery used for crushing stone Crushers are machines used to reduce the size of rocks, stones and ore. They are often utilized in aggregates production, construction material recycling and in mining operations.