This study investigates the effect of brake disk inclination angle on the braking torque of a magnetorheological brake (MRB) using simulations with Altair Flux software. Results show that a flat disk configuration (0° inclination) achieves the highest braking torque, outperforming positive inclination angles by 13.68%–85.27% and negative inclination angles by 0.3%–30.28%. The torque-to-volume (T/V) ratio follows a similar trend, confirming the efficiency of the flat configuration. Additionally, the study examines the impact of different magnetorheological fluid (MRF) grades, with MRF-140CG generating the highest braking torque. These findings provide valuable insights for optimizing MRB design, ensuring high performance and compactness in braking systems. The results contribute to improving MRB applications in the automotive industry and other engineering fields requiring efficient, controllable braking solutions.