Bore Diameter (Inner): 45 mm Outside Diameter: 120 mm Overall Width: 29 mm Contact Angle: 40° (Optimized for managing large, single-direction axial forces)Cage Material: Machined Solid Brass (Indicated by the "M" suffix, offering excellent wear resistance under rapid acceleration)Basic Dynamic Load Rating: 85.2 kN Basic Static Load Rating: 55 kN Limiting/Reference Speed: 7,500 RPM Sealing Configuration: Open type (Requires external lubrication, often factory paired with MT47 grease or run open in oil-bath setups)