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- 1.969 in Inner Diameter
- 3.937 in Outer Diameter
- Super Precision
- 1.575 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
- Axial rating will reduce by 50% unless an EP (Extreme Pressure) grease or oil lubrication is used.
| Cage Material | Phenolic |
| Lubricant | Heavy Duty NLGI#2 Grease |
| Inch/Metric | Metric |
| Universally (Flush) Ground | Yes |
| Fillet Radius | 0.031 in |
| Width of Set | 40 mm |
| Preload Level | Heavy |
| Outer Ring Width | 0.787 in, 20 mm |
| I.D. | 50 mm |
| O.D. Type | Straight |
| Material | Steel |
| Bearing Arrangement | Universal |
| Cage Type | Molded Window |
| No. in Set | Duplex Set |
| Bore Type | Round Bore, Metric Type |
| Ball Material | Steel |
| Dynamic Thrust Capacity | N/A |
| No. of Rows | 2 |
| Preload Amount | 2900 lbf |
| Extended Thrust Dynamic Load Rating | 21500 lb |
| Limiting Thrust Capacity [Max] | 15,700 lb |
| Precision Level | Extra Precision (ABEC 7) |
| Rolling Element Material | Steel |
| Enclosure | Open |
| Contact Angle | 60° |
| O.D. | 100 mm |
| Drag Torque of Preloaded Set | 2 lb/in |
| Bearing Type | Ball Screw Support Bearing |
| Bearing Material | Steel |
| Radial Internal Clearance Specification | Normal Clearance |
| Axial Spring Constant | 10 lb/in |
| Inner Ring Width | 0.787 in, 20 mm |
| Precision Class | ABEC Class 7 |
| Fillet Radius Cone | 0.031 in, 0.8 mm |
| Closure Type | Open |
| Relubricatable | Yes |
| Overall Width | 1.575 in, 40 mm |
| Rolling Element | Ball |
| Weight | 3.16 LB |
| EAN or UPC | 87796233287 |
