Timken 74539TD Double Row Tapered Roller Bearing Cone

The Timken 74539TD double row tapered roller bearing cone is a precision-matched inner race assembly designed for double row tapered roller bearing configurations that support high combined radial and axial loads in heavy-duty industrial equipment. It is intended for use with Timken double cups in TDIT and TDITE bearing configurations. Its double-row design provides superior load distribution, increased rigidity, and enhanced resistance to shock and vibration, making it suitable for rolling mills, mining equipment, industrial gearboxes, heavy conveyors, construction machinery, paper mills, and power transmission equipment. Key specs: MPN 74539TD; Series 74000; Bearing Type TDIT/TDITE Double Row Tapered Roller Bearing Cone; Cone Part Number 74539TD; Material through-hardened chrome steel; bore diameter 4.970 in (126.24 mm); cone width 4.870 in (123.70 mm); shaft backing diameter 4.21 in (106.9 mm); housing backing diameter 5.28 in (134.0 mm); maximum shaft fillet radius 0.030 in (0.8 mm); cage type stamped steel; weight 8.0 lb (4.0 kg). Compatible Timken double cups for TDIT/TDITE assemblies (application dependent). Common replacements include SKF 74539TD, NTN 74539TD, and KOYO 74539TD.