Timken 7207ECRDUMP4S Angular Contact Ball Bearing

Description:

The Timken 7207ECRDUMP4S (3MM207WIDUM) angular contact ball bearing is a super precision duplex angular contact ball bearing designed for high-speed spindle applications requiring exceptional accuracy, rigidity, and combined radial and axial load capacity. Commonly installed in CNC machine tools, machining centers, grinding machines, high-speed spindles, and precision manufacturing equipment where superior rotational accuracy and high-speed performance are essential. Maintenance teams, OEMs, and machine tool integrators use this precision bearing for spindle repairs, bearing replacements, retrofit projects, and preventive maintenance to maximize machining accuracy and equipment reliability.

Applications:

The Timken 7207ECRDUMP4S (3MM207WIDUM) angular contact ball bearing is engineered for precision machine tool spindle applications operating at high speeds and demanding tight tolerances. Its universally matched duplex configuration provides increased rigidity, preload control, and accurate shaft positioning, making it suitable for CNC machining centers, milling machines, grinding equipment, precision lathes, and other high-performance industrial machinery requiring exceptional running accuracy.

Technical Specifications:

• Manufacturer Part Number (MPN): 7207ECRDUMP4S (3MM207WIDUM)
• Manufacturer: Timken
• Product Type: Super Precision Angular Contact Ball Bearing
• Bearing Type: Duplex Angular Contact Ball Bearing
• Series: 7200 Super Precision Series
• Contact Angle: 15°
• Design Units: Metric
• Bore Diameter (d): 35 mm
• Outside Diameter (D): 72 mm
• Width (B): 17 mm (per bearing)
• Bearing Arrangement: Duplex Universal Matched (DU)
• Precision Class: ABEC 7 / ISO P4
• Cage Material: Phenolic Resin Cage
• Ball Material: Steel
• Dynamic Radial Load Rating (C1): 6,091 lbf (27.1 kN)
• Static Radial Load Rating (C0): 4,136 lbf (18.4 kN)
• Limiting Speed (Grease): 9,300 rpm
• Limiting Speed (Oil): 12,000 rpm
• Maximum Shaft Fillet Radius: 0.024 in (0.60 mm)
• Typical Applications: CNC machine tools, machining centers, grinding machines, milling spindles, precision manufacturing equipment

Common Replacements:

• SKF 7207 CD/P4A DBA
• NSK 7207A5TYNDULP4
• FAG B7207-E-T-P4S-UL