TIMKEN 2MM203WI DUL PRECISION BEARINGS

Description:

The Timken 2MM203WICRDUL (Manufacturing Part Number: 2MM203WI DUL, World Part Number: 7203C-T-P4S-DUL) is a matched duplex set of super precision single-row angular contact ball bearings from the Timken Fafnir® 200WI series. Factory matched with DUL (light preload), this bearing set is designed for high-speed machine tool spindles requiring exceptional rigidity, low runout, and precise shaft positioning. It is commonly used in CNC machining centers, milling machines, grinding machines, jig borers, routers, and other precision manufacturing equipment.

Applications:

The Timken 2MM203WICRDUL bearing set is engineered for high-speed spindle applications where accuracy, rigidity, and thermal stability are critical. Its duplex light preload arrangement increases spindle stiffness, minimizes vibration, and provides excellent rotational accuracy, making it suitable for CNC machining centers, high-speed milling machines, grinding machines, precision lathes, machining spindles, and other industrial machine tools.

Technical Specifications:

• Manufacturer Part Number (MPN): 2MM203WICRDUL (Manufacturing Part Number: 2MM203WI DUL)
• World Part Number: 7203C-T-P4S-DUL
• Manufacturer: Timken Fafnir
• Product Type: Super precision angular contact ball bearing set
• Bearing Type: Duplex matched single-row angular contact ball bearings
• Series: 200WI (ISO 7203C)
• Bore Diameter (ID): 17 mm
• Outside Diameter (OD): 40 mm (1.575 in)
• Bearing Width (Single): 12 mm (0.472 in)
• Total Width (Duplex Set): 24 mm (0.945 in)
• Contact Angle: 15°
• Arrangement: Duplex matched pair
• Preload: DUL (Light preload)
• Ball Material: Steel
• Cage Type: CR outer land riding cage
• Cage Material: MBR phenolic cage
• Precision Rating: ISO P4S (ABEC 7/9 equivalent)
• Static Radial Load Rating (C0): 5,900 N (1,320 lbf) per bearing
• Dynamic Radial Load Rating (Ce): 12,000 N (2,750 lbf) per bearing
• ISO Dynamic Load Rating (C1): 10,900 N (2,460 lbf) per bearing
• Limiting Speed (Grease): 41,900 rpm
• Limiting Speed (Oil): 83,800 rpm
• Maximum Shaft Fillet Radius: 0.60 mm (0.024 in)
• Maximum Housing Fillet Radius: 0.60 mm (0.024 in)
• Function: Supports combined radial and axial loads in high-speed precision spindle applications.
• Features: Factory-matched duplex set, light preload, super precision construction, low runout, high rigidity, optimized for high-speed CNC spindles, and excellent thermal stability.

Common Replacements:

• Timken 2MM203WICRDUL super precision bearing set
• SKF 7203 CD/P4A DUL angular contact bearing set
• NSK 7203CTYNSULP4 duplex bearing set