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NTN 5203 KN Double Row Angular Contact Ball Bearing - Tapered Bore 17x40x17.5 mm

65.03 65.03

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Marca: NTN
Product Category: Angular Contact Ball Bearing

Product Details

Brand: NTN
NTN 5203 KN Double Row Angular Contact Ball Bearing - Tapered Bore 17x40x17.5 mm

The NTN 5203 KN bearing is engineered specifically for demanding industrial applications requiring high precision and exceptional load rigidity. As a double-row angular contact bearing, it is designed to manage combined radial and significant bi-directional axial loads simultaneously, making it ideal for applications where shaft deflection must be minimized. The critical 'K' designation indicates a 1:12 tapered bore, allowing for precise interference fit and simplified mounting using standard adapter or withdrawal sleeves on straight shafts. Furthermore, the 'N' designation signifies a snap ring groove on the outer ring, facilitating easier axial location and reducing the need for complex housing modifications. Manufactured by NTN, a global leader in precision rolling technology, this bearing ensures maximum operational lifespan and reduced total cost of ownership. Its optimized internal geometry and precision-machined raceways minimize running noise and frictional heat, supporting higher operating speeds and reducing energy consumption. This 5203 KN unit is the preferred solution for maintaining stability and uptime in critical machinery such as industrial gearboxes, high-speed pumps, machine tool spindles, and material handling equipment, guaranteeing reliable performance even under continuous, heavy-duty cycling.

Key Features

  • Double Row configuration handles combined radial and bi-directional axial loads effectively.
  • 1:12 Tapered Bore (K) facilitates easy mounting and dismounting using adapter sleeves, ensuring precise shaft fits.
  • Snap Ring Groove (N) allows for streamlined axial positioning within the housing.
  • High degree of running accuracy and rigidity suitable for machine tool and pump applications.
  • Premium NTN materials guarantee extended service life and reduced maintenance intervals.

Technical Specifications

d17 mm
D40 mm
B17.5 mm
Bearing_TypeDouble Row Angular Contact Ball
Bore_TypeTapered (1:12 K)
Outer_Ring_FeatureSnap Ring Groove (N)
ManufacturerNTN
Dynamic_Load_Rating_(C)12.7 kN
Static_Load_Rating_(C0)6.6 kN
Fatigue_Load_Limit_(Pu)0.335 kN
Limiting_Speed_(Grease)11,000 rpm
Mass0.088 kg