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Item # KB 8UU, 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
    		8 mm

    (dr) High Tolerance
    		+8/0 µm

    (D) Outer Diameter
    		16 mm

    (D) Tolerance
    		0/-8 µm

    Length
    		25 mm

    (L) Tolerance
    		0/-200 µm

    Dist. Btwn Retaining Rings
    		16.5 mm

    (B) Tolerance
    		0/-200 µm

    (W) Retaining Ring Width
    		1.1 mm

    (D1) Retaining Ring Diameter
    		15.2 mm

    (C) Dynamic Load
    		27 kgf

    (Co) Static Load
    		41 kgf

    Ball Circuit
    		4

    Weight
    		22 gf

    Configuration
    		Standard Type

    Seal Type
    		Seals on Both Ends

    Precision Eccentricity
    		6 µm

    High Eccentricity
    		12 µm

    Maximum Radial Clearance
    		-3 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