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Bearings Angular Contact Bearings Angular Contact Bearings
Quick Code: BB-511670

3309 JC3 NSK Double Row Angular Contact Ball Bearing 45mm x 100mm x 39.7mm

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Product Specification
Arrangement
Standard version
Brand
NSK
Cage
Steel
Clearance
Slightly increased radial clearance
Contact angle
Without indication, usually 30-40 degrees
Inside Dia
45mm
Material
Standard bearing steel
Outer ring
Without flange/groove
Outside Dia
100mm
Row Type
Double
Seal
None, open bearing
Temperature range
-20 to +150 °C
Tolerance class
Tolerance class P0/PN2 / ABEC 1
Width
39.7mm
Reference
3309JC3
Additional Reference:
10110939
Quick Order Code
BB-511670
Product Description

3309 JC3 NSK Double Row Angular Contact Ball Bearing

This premium double row angular contact ball bearing from NSK is engineered to handle simultaneous radial and axial loads with exceptional precision and reliability. The double row configuration provides superior load capacity compared to single row bearings, making it an ideal choice for demanding industrial applications requiring robust performance and extended service life.

Design & Construction

NSK's advanced engineering combines strategically displaced raceways in both inner and outer rings, enabling efficient accommodation of complex loading conditions. The double row design delivers enhanced load distribution and stability for high-speed, precision applications.

  • Double row configuration for superior radial and axial load capacity
  • Slightly increased radial clearance for optimised performance and operational flexibility
  • Capable of managing combined radial and axial loading with exceptional precision
  • Steel cage construction ensures reliable performance under demanding conditions
  • Open design (unsealed) allows for lubrication flexibility and suitability for clean, controlled environments
  • Standard arrangement for versatile industrial applications
  • Outer ring without flange or groove for straightforward installation

Specifications

  • Bore Diameter: 45mm
  • Outside Diameter: 100mm
  • Width: 39.7mm
  • Row Type: Double Row
  • Cage Material: Steel
  • Seal Type: Open Bearing (Unsealed)
  • Contact Angle: 30-40 degrees
  • Radial Clearance: Slightly Increased
  • Material: Standard bearing steel
  • Tolerance Class: P0/PN2 (ABEC 1)
  • Operating Temperature Range: -20°C to +150°C
  • Manufacturer: NSK
  • Reference Number: 3309 JC3

Ideal Applications

Perfect for heavy-duty industrial equipment, gearboxes, spindle systems, and precision machinery where combined loading and high-speed operation are critical requirements. The double row design and slightly increased clearance make this bearing particularly suitable for applications demanding greater load capacity and operational flexibility. Commonly used in automotive transmissions, industrial pumps, electric motors, and other equipment where reliable performance under demanding conditions is essential.

In stock for immediate dispatch. Contact us if you require alternative clearances, seal types, or specifications.


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