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    RU

    With Mounting Holes
    Integrated Inner/Outer Ring
    (Outer Dia. 70 - 295 mm)
    main product photo
    The integrated design of the unit’s inner and outer rings, with mounting holes on both rings, eliminates the need for a special flange or housing and enables easy installation. Mounting has virtually no effect on performance, which ensures stable, accurate rotation and torque. Can be used for both outer and inner ring rotation

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    Days to Ship Clear
    Preload Clear
    Inner Diameter (mm) Clear
    9. show 3 more show less
    Outer Diameter (mm) Clear
    9. show 3 more show less
    Dust Protection Seal Clear
    Width (mm) Clear
    8. show 2 more show less
    Bolt Used Clear
    7. show 1 more show less
    Mounting Hole Spec - Inner Ring Clear
    Mounting Hole Spec - Outer Ring Clear
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    *Please contact THK if you need more than available quantity or out of stock items
    Attributes Part Number Online Store
    Unit Price (USD)    		 Quantity Days to Ship Item Total
    Preload: No Preload
    Width (mm): 35
    Inner Diameter (mm): 160
    Outer Diameter (mm): 295
    Dust Protection Seal: With Seal
    Bolt Used: M10
    Mounting Hole Spec - Inner Ring: Tapped
    		RU228UUC0X –
    		Days to Ship: 1 - 3 days
    Preload: Preloaded
    Width (mm): 35
    Inner Diameter (mm): 160
    Outer Diameter (mm): 295
    Dust Protection Seal: With Seal
    Bolt Used: M10
    Mounting Hole Spec - Inner Ring: Tapped
    		RU228UUCC0X –
    		Days to Ship: 3 - 4 weeks
    Preload: No Preload
    Width (mm): 40
    Inner Diameter (mm): 210
    Outer Diameter (mm): 380
    Dust Protection Seal: With Seal
    Bolt Used: M12
    Mounting Hole Spec - Inner Ring: Counterbore
    		RU297UUC0G –
    		Days to Ship: 1 - 3 days
    Preload: Preloaded
    Width (mm): 40
    Inner Diameter (mm): 210
    Outer Diameter (mm): 380
    Dust Protection Seal: With Seal
    Bolt Used: M12
    Mounting Hole Spec - Inner Ring: Counterbore
    		RU297UUCC0G –
    		Days to Ship: 1 - 3 days
    Preload: No Preload
    Width (mm): 40
    Inner Diameter (mm): 210
    Outer Diameter (mm): 380
    Dust Protection Seal: With Seal
    Bolt Used: M12
    Mounting Hole Spec - Inner Ring: Tapped
    		RU297UUC0X –
    		Days to Ship: 1 - 3 days
    Preload: Preloaded
    Width (mm): 40
    Inner Diameter (mm): 210
    Outer Diameter (mm): 380
    Dust Protection Seal: With Seal
    Bolt Used: M12
    Mounting Hole Spec - Inner Ring: Tapped
    		RU297UUCC0X –
    		Days to Ship: 1 - 3 days
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    Related Products
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      RAU
    2. RBU
      RBU
    Model No. Main dimensions Shoulder height Basic load rating Mass Mounting hole related
    Inner diameterd Outer diameterD Roller pitch circle diameterdp WidthB Greasing holed1 rmin ds(max) Dh(min) Radial Inner ring Outer ring
    DynamicratingC StaticratingC0 PCD1 Mounting hole PCD2 Mounting hole
    mm mm mm mm mm mm mm mm kN kN kg mm mm mm mm
    RU42 20 70 41.5 12 3.1 0.6 37 47 7.35 8.35 0.29 28 6-M3 through 57 6-φ3.4 through φ6.5 counterbore depth 3.3
    RU66 35 95 66 15 3.1 0.6 59 74 17.5 22.3 0.62 45 8-M4 through 83 8-φ4.5 through φ8 counterbore depth 4.4
    RU85 55 120 85 15 3.1 0.6 79 93 20.3 29.5 1 65 8-M5 through 105 8-φ5.5 through φ9.5 counterbore depth 5.4
    RU124 (G) 80 165 124 22 3.1 1 114 134 33.1 50.9 2.6 97 10-φ5.5 through φ9.5 counterbore depth 5.4< 148 10-φ5.5 through φ9.5 counterbore depth 5.4
    RU124X 80 165 124 22 3.1 1 114 134 33.1 50.9 2.6 97 10-M5 through 148 10-φ5.5 through φ9.5 counterbore depth 5.4
    RU148 (G) 90 210 147.5 25 3.1 1.5 133 162 49.1 76.8 4.9 112 12-φ9 through φ14 counterbore depth 8.6 187 12-φ9 through φ14 counterbore depth 8.6
    RU148X 90 210 147.5 25 3.1 1.5 133 162 49.1 76.8 4.9 112 12-M8 through 187 12-φ9 through φ14 counterbore depth 8.6
    RU178 (G) 115 240 178 28 3.1 1.5 161 195 80.3 135 6.8 139 112-φ9 through φ14 counterbore depth 8.6 217 12-φ9 through φ14 counterbore depth 8.6
    RU178X 115 240 178 28 3.1 1.5 161 195 80.3 135 6.8 139 12-M8 through 217 12-φ9 through φ14 counterbore depth 8.6
    RU228 (G) 160 295 227.5 35 6 2 208 246 104 173 11.4 184 12-φ11 through φ17.5 counterbore depth 10.8 270 12-φ11 through φ17.5 counterbore depth 10.8
    RU228X 160 295 227.5 35 6 2 208 246 104 173 11.4 184 12-M10 through 270 12-φ11 through φ17.5 counterbore depth 10.8
    RU297 (G) 210 380 297.3 40 6 2.5 272 320 156 281 21.3 240 16-φ14 through φ20 counterbore depth 13 350 16-φ14 through φ20 counterbore depth 13
    RU297X 210 380 297.3 40 6 2.5 272 320 156 281 21.3 240 16-M12 through 350 16-φ14 through φ20 counterbore depth 13
    For more detailed specifications, please download the Product Catalog with the link in the Downloads section of this product page.
    Model Size Seals*1 Radial clearance*2 Symbol for inner ring thru hole Symbol for mounting hole orientation
    RU 124 UU CC0 X G
    RU 42 UU C0 : Positive Clearance No Symbol: For sizes 42 to 85, tapped-hole for inner ring No Symbol: The counterbore holes of the inner and outer rings face the same direction
      66   CC0 : Preload X: For sizes 124 to 228, tapped-hole for inner ring G: The counterbore holes of the inner and outer rings face opposite direction
      85
      124
      148
      178
      228
             
             

    Note 1: Contamination protection seal UU is standard for Model RU
    Note 2: Radial Clearance /media/specification/RU Seal.jpg

    Model No. CC0 C0
    Starting torque (N-m) Radial clearance (µm)
    Min. Max. Min. Max.
    RU42 0.1 0.5 0 25
    RU66 0.3 2.2 0 30
    RU85 0.4 3 0 40
    RU124 1 6 0 40
    RU148 1 10 0 40
    RU178 3 15 0 50
    RU228 5 20 0 60

    The RU clearance CC0 is controlled by starting torque. Starting torque for clearance CC0 does not include seal resistace value. The above selections are Online Store standards. If you need a selection that differs from the standard, please contact us at [email protected]