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NSK Bearing

F

Fresh Bearing Corporation

Key Info

1 : All types of NSK brand Ball Bearing
2 : All types of NSK brand Pillow Lock Bearing
3 : All types of NSK brand Roller Bearing
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NSK bearing descriptions follow a structured alphanumeric nomenclature indicating type, dimension, cage, and internal clearance. Common types include Deep Groove Ball (e.g., 6000), Angular Contact (e.g., 7000), and Roller bearings. Suffixes like ZZ (shielded), DDU (contact seal), C3 (clearance), and K (tapered) define specific application features.


Key Components of NSK Bearing Designations

  1. Bearing Type: 6 (Deep Groove), 7 (Angular Contact), N (Cylindrical Roller), 2 (Spherical Roller).
  2. Dimension Series: Defines width and diameter series (e.g., 6200 vs 6300).
  3. Bore Size: For codes 04 and up, last two digits multiplied by 5 give bore in mm (e.g., 6205 = 25mm).
  4. Seals/Shields (Suffixes):
  5. Z / ZZ: One/two pressed steel shields.
  6. V / VV: Non-contact rubber seals.
  7. DU / DDU: One/two contact rubber seals.
  8. Internal Clearance: C2 (Tight), CN (Normal), C3 (Greater than Normal), C4 (Greater than C3).
  9. Cage Options: TNG (Polyamide), J (Pressed Steel).

Common NSK Suffix Examples

  1. K: Tapered bore (1:12).
  2. NR: Snap ring groove with snap ring.
  3. E: Extra capacity (higher load rating).
  4. NSKHPS™: High Performance Standard bearings.

For example, a bearing labeled 6205ZZC3 is a 6200 series deep groove ball bearing, 25mm bore, double shielded, with C3 clearance.