Based on this product's specifications, here are some alternatives and similar models
Tryton needle bearing for hammer drill TMM1050X (37) HK1210 model YTMM02LI
Summary description:
Needle bearing by Tryton designed for use in hammer drill model TMM1050X (37) HK1210, part number YTMM02LI. This replacement bearing provides the rolling-element support required for rotary and hammering motion in the tool’s gearbox or chuck assembly. Suitable for repair and maintenance of the specified drill to restore smooth rotation and reduce wear.