Compatibility: Compatible with Pfaff household sewing machine models including 1212 1214 1215 1216 1217 1221 1222 1222E as well as compatible with White 534 and 534D machines. Function: This motor drive belt transfers power from the motor to the machine mechanism enabling consistent needle movement and stitch operation during sewing. Specifications: Features a 14 inch circumference with 70 teeth designed to match original belt geometry and maintain proper timing and torque transmission. Application Use: Suitable for repairing sewing machines with worn stretched or slipping belts that cause irregular speed or reduced driving performance. Installation Scenario: Commonly used during routine maintenance or motor servicing and can help restore stable operation without replacing the entire sewing machine., Manufacturer: AS Axis Spindleon