Product detailed description

The ZKL NN 3036 KP51 is a super-precision double-row cylindrical roller bearing that offers a unique balance between load-carrying capacity, rigidity, and speed. This bearing is particularly suitable for applications demanding high precision and reliability.

Key Features:

• High Radial Load Capacity: Engineered to support substantial radial loads, ensuring durability and performance in demanding conditions.

• High Rigidity and Running Accuracy: Designed to provide exceptional rigidity and running accuracy, making it ideal for high-precision machinery.

• Axial Displacement Accommodation: The design allows for axial displacement in both directions, enhancing operational flexibility.

• Lubrication Feature: Equipped with an annular groove and lubrication holes in the outer ring to facilitate effective lubrication and heat dissipation.

Technical Specifications:

• Dimensions:

  • Bore Diameter (d): 180 mm
  • Outside Diameter (D): 280 mm
  • Width (B): 74 mm

• Load Ratings:

  • Basic Dynamic Load Rating (C): 561 kN
  • Basic Static Load Rating (C₀): 1,000 kN

• Speed Ratings:

  • Limiting Speed for Grease Lubrication: 3,000 rpm
  • Limiting Speed for Oil-Air Lubrication: 3,400 rpm

• Design Features:

  • Number of Rows: 2
  • Bore Type: Tapered 1:12
  • Cage Type: Machined Metal
  • Design: NN
  • Number of Flanges, Outer Ring: 0
  • Number of Flanges, Inner Ring: 3
  • Radial Internal Clearance: C3
  • Tolerance Class: Class SP
  • Material: Bearing Steel
  • Sealing: Without Sealing
  • Lubricant: None
  • Relubrication Feature: Annular Groove and Lubrication Holes

• Physical Properties:

  • Net Weight: 16.2 kg

This bearing is commonly used in high-precision applications such as machine tool spindles, where high rigidity and accuracy are essential. Its separable design simplifies mounting and dismounting, particularly when load conditions require both rings to have an interference fit. The tapered bore enables accurate adjustment of clearance or preload during mounting.