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Item # KB 12UU, KB Metric Type Linear Motion Bearings

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KB Type Millimeter dimension series. Most widely used in Europe.
Available options:
  • Chrome or Stainless Steel
  • Steel or Resin Retainer
  • Internal Seals (UU)
  • Adjustable or Open Series
  • Slide Block Housings available in several styles



  • Unit of Measure: Metric

    Specifications  · Available Housing Types  · Bearing Dimensions

    Specifications

    (dr) Shaft Diameter

    12 mm

    (dr) High Tolerance

    +8/0 µm

    (D) Outer Diameter

    22 mm

    (D) Tolerance

    0/-9 µm

    Length

    32 mm

    (L) Tolerance

    0/-200 µm

    Dist. Btwn Retaining Rings

    22.9 mm

    (B) Tolerance

    0/-200 µm

    (W) Retaining Ring Width

    1.3 mm

    (D1) Retaining Ring Diameter

    21 mm

    (h) Dimension

    1.5 mm

    (h1) Dimension

    7.5 mm

    (C) Dynamic Load

    52 kgf

    (Co) Static Load

    79 kgf

    Ball Circuit

    4

    Weight

    44 gf

    Configuration

    Standard Type

    Seal Type

    Seals on Both Ends

    (θ) Dimension

    78 º

    Precision Eccentricity

    6 µm

    High Eccentricity

    12 µm

    Maximum Radial Clearance

    -4 µm


    Available Housing Types

    NB TOPBALL Slide Units include a clear anodized corrosion resistant aluminum block and either one or two TOPBALL self-aligning slide bushings Closed and adjustable clearance styles incorporate machined snap ring grooves in combination with standard retaining rings for slide bush retention. The open style incorporates bottom plates and mounting screws to retain bushing in proper position. All styles are provided with standard machined reference edges for proper alignment and installation.



    Bearing Dimensions

    Different Housing Types