Based on this product's specifications, here are some alternatives and similar models
Upper Roller Replacement for Brother MFC-8460N, compatible spare part MCZ3553
Summary description:
Compatible upper roller (replacement) for Brother MFC-8460N multifunction printers. Designed to replace the original upper feed/pressure roller, this spare part (MPN MCZ3553, EAN 6946326535533) restores paper feeding and reduces jams. Intended for maintenance and repair of Brother MFC-8460N units in offices or home environments.