A roll (101, 101', 101", 101"', 201, 201', 201") for a rotary cutter (11, 12, 13, 14) comprising: a barrel portion (110, 210) having a circumferential surface (110c, 210c) and a pair of end surfaces (110a, 110b, 210a, 210b) located respectively at opposite ends of the circumferential surface; a pair of first depressions (113, 213) having a ring shape or a cylindrical shape and located respectively at the pair of end surfaces of the barrel portion, the pair of first depressions each having a depth direction that is parallel to an axis of the barrel portion; a pair of first bearings (152, 252) located respectively in the pair of first depressions; and a pair of first bearing boxes (156, 256) located on an outside of the pair of first depressions and having support portions to be in contact with a support frame or a pressure mechanism, the pair of first bearing boxes supporting the respective bearings, wherein either (i) the pair of first bearings are in contact with outer walls (113b, 213b) of the first depression; or (ii) the roll for a rotary cutter further comprises a pair of shafts (112, 212) connected to the barrel portion and having an axis (112a, 212a) that coincides with an axis of the circumferential surface, the pair of first depressions each have a ring shape extending around the shaft; the pair of first bearings are in contact with the shaft or outer walls of the first depressions. a barrel portion (110, 210) having a circumferential surface (110c, 210c) and a pair of end surfaces (110a, 110b, 210a, 210b) located respectively at opposite ends of the circumferential surface; a pair of first depressions (113, 213) having a ring shape or a cylindrical shape and located respectively at the pair of end surfaces of the barrel portion, the pair of first depressions each having a depth direction that is parallel to an axis of the barrel portion; a pair of first bearings (152, 252) located respectively in the pair of first depressions; and a pair of first bearing boxes (156, 256) located on an outside of the pair of first depressions and having support portions to be in contact with a support frame or a pressure mechanism, the pair of first bearing boxes supporting the respective bearings, wherein either (i) the pair of first bearings are in contact with outer walls (113b, 213b) of the first depression; or (ii) the roll for a rotary cutter further comprises a pair of shafts (112, 212) connected to the barrel portion and having an axis (112a, 212a) that coincides with an axis of the circumferential surface, the pair of first depressions each have a ring shape extending around the shaft; the pair of first bearings are in contact with the shaft or outer walls of the first depressions. (i) the pair of first bearings are in contact with outer walls (113b, 213b) of the first depression; or (ii) the roll for a rotary cutter further comprises a pair of shafts (112, 212) connected to the barrel portion and having an axis (112a, 212a) that coincides with an axis of the circumferential surface, the pair of first depressions each have a ring shape extending around the shaft; the pair of first bearings are in contact with the shaft or outer walls of the first depressions.