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Precision Rolling Bearings

Precision Rolling Bearings
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Precision Rolling Bearings

Product catalog summary
Angular Contact Ball Bearings / Flush Ground Type
  • Series: U and DU
  • Features: These bearings offer configurations such as back-to-back (DB), face-to-face (DF), and tandem (DT) without the need for adjustment, simplifying assembly and inventory management.
  • Preload: Preloading enhances performance by increasing shaft rigidity, reducing vibration, and extending bearing life. It is applied using springs or spacers, with standard preloads available.
Angular Contact Ball Bearings / High Speed Type
  • Series: BNH
  • Features: Designed for high-speed applications with smaller balls, making them suitable for machining center spindles.
  • Preload: A standard light preload is used.
Angular Contact Ball Bearings / For Thrust Load
  • Series: TAH and TBH
  • Features: Suitable for high-speed applications with contact angles of 30˚ (TAH) and 40˚ (TBH). They are interchangeable with the TAD20 type by altering the setting method.
  • Tolerance: Special tolerance for clearance fit in housing, allowing for radial load carrying.
Double Row Cylindrical Roller Bearings
  • Series: NN and NNU
  • Features: These bearings are designed for high load capacity with specific boundary dimensions and clearance.
Cross Tapered Roller Bearings
  • Series: XRN
  • Features: They offer specific boundary dimensions and displacement capabilities.
Ball Screw Support Bearings
  • Series: TAB
  • Features: Designed for high precision with specific preload and displacement characteristics.
Tolerance Values for Radial Bearings
  • Standard tolerance values are provided for various bearing types to ensure precision and performance.
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Catalog excerpts

Precision Rolling Bearings-1

Precision Rolling Bearings >

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Precision Rolling Bearings-2

Angular Contact Ball Bearings / Flush Ground Type U and DU Series 2 > Boundary Dimensions5Preload3 Tolerance23 Angular Contact Ball Bearings / High Speed Type BNH Series7 > Boundary Dimensions8 Preload7 Tolerance 23 Angular Contact Ball Bearings / For Thrust Load TAH and TBH Series9 > Boundary Dimensions10 Preload 9 Tolerance 9, 23 Double Row Cylindrical Roller Bearings NN and NNU Series12 > Boundary Dimensions 13 Clearance 12 Tolerance 23 Cross Tapered Roller Bearings XRN Series15 > Boundary Dimensions 17 Tolerance 16 Displacement 16 Ball Screw Support Bearings TAB Series19 > Boundary Dimensions...

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Precision Rolling Bearings-3

Angular Contact Ball Bearings / Flush Ground Type A"U" bearing can be purchased singularly. To manufacture a "DU" series set, select two "U" series bearings. Thesehave been manufactured with the desired preload. They are purchasablewith a small dimensional variation in bore diameter and outer diameter.As such they can be combined to make a DB, DF or DTset. > Symbols; U=Universal, DU=Duplex universal

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Precision Rolling Bearings-16

This bearing type is designed with two inner rings and one outer ring. The rolling elements (Taperedrollers) are arranged with their surfaces contact the ring raceways in an alternating pattern. Feature design > This type can sustain radial,overturning moment andbi-directional axial loads.ՕChange in size due to thermal growth does not affectthis type of bearing. Preload is stable over the entire temperature operating range.Light weight,compact,easy to assemble. Applications > ՕWorktable of machining centers or verticalgrinding machinesWork-spindle of lathes or grinding machines ՕThe indexing...

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