Timken 308KDDN Ball Bearing

Description:

The Timken 308KDDN is a single-row deep groove radial ball bearing from the Timken Fafnir® 300 Series. Featuring double metal shields (KDDN), this bearing is designed to support primarily radial loads with moderate axial loads in both directions while protecting the rolling elements from contaminants and retaining lubricant. It is commonly used in electric motors, pumps, conveyors, gearboxes, fans, compressors, agricultural equipment, and other industrial rotating machinery requiring reliable, low-friction operation.

Applications:

The Timken 308KDDN deep groove ball bearing is engineered for industrial applications requiring smooth operation, low noise, and long service life. Its double-shielded design helps retain factory lubrication while preventing the entry of dust and debris, making it suitable for electric motors, industrial pumps, conveyor systems, fans, blowers, machine tools, compressors, and general power transmission equipment.

Technical Specifications:

• Manufacturer Part Number (MPN): 308KDDN
• Manufacturer: Timken Fafnir
• Product Type: Deep groove ball bearing
• Bearing Type: Single-row radial deep groove ball bearing
• Series: 300 Series
• Bore Diameter (ID): 40 mm (1.575 in)
• Outside Diameter (OD): 90 mm (3.543 in)
• Width: 23 mm (0.906 in)
• Closure Type: Double shielded (KDDN)
• Shield Material: Steel
• Bore Type: Straight bore
• Ball Material: Steel
• Cage Material: Steel
• Precision Rating: ABEC 1 (Standard)
• Internal Clearance: Standard (P)
• Dynamic Radial Load Rating (C1): 49,375 N (11,100 lbf)
• Static Radial Load Rating (C0): 26,022 N (5,850 lbf)
• Limiting Speed (Grease): 4,620 rpm
• Limiting Speed (Oil): 5,380 rpm
• Maximum Shaft Fillet Radius: 1.5 mm (0.059 in)
• Weight: Approximately 0.64 kg (1.42 lb)
• Function: Supports radial loads and moderate axial loads in both directions while providing smooth, low-friction rotation.
• Features: Double-shielded construction, factory-lubricated, super-finished raceways, Electric Motor Quality (EMQ), quiet operation, heavy cross-section 300 Series design, and long service life.

Common Replacements:

• Timken 308KDDN deep groove ball bearing
• SKF 6308-2Z deep groove ball bearing
• NSK 6308ZZ deep groove ball bearing