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Alternate Products
- 2.252 in Inner Diameter
- 3.543 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.
| I.D. | 2 1/4 in |
| No. of Rows | 4 |
| Limiting Thrust Capacity [Max] | 27,400 lb |
| Cage Material | Phenolic |
| No. in Set | Quadruplex Set |
| Preload Level | Heavy |
| O.D. | 3.54331 in |
| Inch/Metric | Inch |
| Bearing Type | Ball Screw Support Bearing |
| Outer Ring Width | 1.25 in, 31.76 mm |
| Material | Steel |
| Precision Level | Extra Precision (ABEC 7) |
| Universally (Flush) Ground | Yes |
| Width of Set | 2 1/2 in |
| O.D. Type | Straight |
| Drag Torque of Preloaded Set | 14 lb/in |
| Enclosure | Open |
| Rolling Element Material | Steel |
| Bearing Arrangement | Universal |
| Contact Angle | 60° |
| Preload Amount | 3600 lbf |
| Dynamic Thrust Capacity | N/A |
| Fillet Radius | 0.031 in |
| Ball Material | Steel |
| Bearing Material | Steel |
| Extended Thrust Dynamic Load Rating | 18300 lb |
| Cage Type | Molded Window |
| Inner Ring Width | 1.25 in, 31.76 mm |
| Radial Internal Clearance Specification | Normal Clearance |
| Bore Type | Round Bore, Inch Type |
| Axial Spring Constant | 18.8 lb/in |
| Lubricant | Heavy Duty NLGI#2 Grease |
| Overall Width | 2.501 in, 63.52 mm |
| Mounting Arrangement | Back-To-Back Arrangement |
| Rolling Element | Ball |
| Closure Type | Open |
| Fillet Radius Cone | 0.031 in, 0.8 mm |
| Precision Class | ABEC Class 7 |
| Relubricatable | Yes |
| Weight | 2.51 LB |
| EAN or UPC | 87796073661 |
