# HKR29D Cylindrical Roller Notes for Gearboxes and Motors

Cylindrical roller bearings are chosen when the shaft sees a heavy radial load and the design can separate the ring and roller assembly for mounting. HKR29D sits in that family: a single-row, separable roller bearing aimed at motors, gearboxes, pumps, compressors, and conveyors.

Related shop codes include HKR29C, HKR29E, and HKR29F. Do not treat those suffixes as interchangeable without a drawing. The cage, internal design, and shoulder arrangement can change how the bearing locates the shaft.

HKR29D is the Made-in-China product page for this model from Shandong TFL Bearing Co., Ltd. Use it to confirm type (N, NU, NJ, RN, or similar) and current factory stock before a gearbox teardown is booked.