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Steel Super Precision Angular Contact Ball Bearing

MM9308WI2H QUH

Steel Super Precision Angular Contact Ball Bearing
Item #101020939
  • 0.937 in Inner Diameter
  • 2.441 in Outer Diameter
  • Super Precision
  • 2.501 in Overall Width
  • Cylindrical OD
Steel Super Precision Angular Contact Ball Bearing
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    Shipment Options
  • 0.937 in Inner Diameter
  • 2.441 in Outer Diameter
  • Super Precision
  • 2.501 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.
Bore Type Round Bore, Inch Type
Preload Level Heavy
Axial Spring Constant 12 lb/in
Dynamic Thrust Capacity N/A
I.D. 0.9385 in
Lubricant Heavy Duty NLGI#2 Grease
Universally (Flush) Ground Yes
Outer Ring Width 1.25 in, 31.76 mm
O.D. Type Straight
Limiting Thrust Capacity [Max] 16,000 lb
Contact Angle 60°
Fillet Radius 0.031 in
Bearing Material Steel
Precision Level Extra Precision (ABEC 7)
Rolling Element Material Steel
Enclosure Open
Width of Set 2 1/2 in
Drag Torque of Preloaded Set 8 lb/in
Extended Thrust Dynamic Load Rating 13100 lb
Ball Material Steel
Inner Ring Width 1.25 in, 31.76 mm
No. in Set Quadruplex Set
Bearing Type Ball Screw Support Bearing
No. of Rows 4
Radial Internal Clearance Specification Normal Clearance
O.D. 2.44094 in
Material Steel
Preload Amount 2000 lbf
Cage Material Phenolic
Inch/Metric Inch
Bearing Arrangement Universal
Cage Type Molded Window
Fillet Radius Cone 0.031 in, 0.8 mm
Relubricatable Yes
Rolling Element Ball
Mounting Arrangement Back-To-Back Arrangement
Closure Type Open
Precision Class ABEC Class 7
Overall Width 2.501 in, 63.52 mm
Weight 1.76 LB
EAN or UPC 87796073517
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