Abstract: A square baler includes a compression chamber, a reciprocating plunger configured to compress bale material in the compression chamber to make a square bale, and a feeding system configured to feed bale material into the compression chamber. The feeding system includes a feeding duct having an input end and an output end, a feeding fork configured to perform a loading stroke to pre-compress bale material in the feeding duct and a feeding stroke to transfer bale material from the feeding duct into the compression chamber. A drive mechanism is provided for driving movement of the feeding fork. The drive mechanism is adjustable to control the length and/or the speed of the loading stroke.

Abstract: A rotary drive transmission is provided for a baler including a bale chamber, a plunger that compresses bale material in the bale chamber, a drive mechanism that drives reciprocating movement of the plunger, and a flywheel connected to a rotary input of the drive mechanism. The rotary drive transmission includes a rotary drive part, a rotary driven part that drives rotation of the flywheel, and a torsional drive transfer device that transfers rotary drive between the rotary drive part and the rotary driven part. The torsional drive transfer device includes a resilient element and is configured to allow limited relative rotation in the drive direction between the rotary drive part and the rotary driven part against a reaction force provided by the resilient element.