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Steel Super Precision Angular Contact Ball Bearing

MM9311WI3H DUH

Steel Super Precision Angular Contact Ball Bearing
Item #101020942
  • 1.752 in Inner Diameter
  • 3 in Outer Diameter
  • Super Precision
  • 1.25 in Overall Width
  • Cylindrical OD
Steel Super Precision Angular Contact Ball Bearing
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    Shipment Options
  • 1.752 in Inner Diameter
  • 3 in Outer Diameter
  • Super Precision
  • 1.25 in Overall Width
  • Cylindrical OD

description

  • To meet the requirements of the servo-controlled machinery field, Torrington has developed a new series of ball bearings specially designed for ball screw applications. Design criteria for these bearings with maximum axial rigidity, low drag torque, and extreme control of lateral eccentricity.

applications

  • Ball screw support

features

  • ABEC 9/ISO P2 axial running tolerances for higher accuracy
  • Tighter preload tolerances for chatter-free cutting
  • Tighter width tolerances for easy fit without regrinding end caps
  • Pre-lubricated with high-performance grease
  • Broad availability for increased machine uptime
  • Clean steel supports longer service life

caution

  • Should not be used in other areas such as spindles or gearbox shafting without approval by Torrington Engineering Department.
Universally (Flush) Ground Yes
Cage Material Phenolic
Width of Set 1 1/4 in
Preload Level Heavy
Radial Internal Clearance Specification Normal Clearance
Dynamic Thrust Capacity N/A
Rolling Element Material Steel
Ball Material Steel
Limiting Thrust Capacity [Max] 11,400 lb
Inner Ring Width 0.625 in, 15.88 mm
Fillet Radius 0.031 in
Preload Amount 1500 lbf
Outer Ring Width 0.625 in, 15.88 mm
Inch/Metric Inch
Precision Level Extra Precision (ABEC 7)
Lubricant Heavy Duty NLGI#2 Grease
Cage Type Molded Window
No. of Rows 2
Bearing Material Steel
O.D. 3 in
O.D. Type Straight
I.D. 1.751 in
Enclosure Open
Extended Thrust Dynamic Load Rating 8500 lb
No. in Set Duplex Set
Drag Torque of Preloaded Set 5 lb/in
Contact Angle 60°
Bore Type Round Bore, Inch Type
Bearing Type Ball Screw Support Bearing
Material Steel
Bearing Arrangement Universal
Axial Spring Constant 7.9 lb/in
Closure Type Open
Mounting Arrangement Back-To-Back Arrangement
Rolling Element Ball
Overall Width 1.25 in, 31.76 mm
Precision Class ABEC Class 7
Relubricatable Yes
Fillet Radius Cone 0.031 in, 0.8 mm
Weight 1.3 LB
EAN or UPC 87796073623
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