JEWEL BEARING APPLICATION TEST AND ANALYSIS

reportActive / Technical Report | Accession Number: AD0276037 | Open PDF

Abstract:

The effect of substitution of sapphire jewelled bearings for brass at the pinion pivots on timer escapement and gear train efficiency was investigated. Results indicated that jewelling had no significant effect on the performance of the timer movements. Since the data was based on only 10 runs, the operating life increase is difficult to predict. It is reasonable to assume that pivot life and pivot hole sizes could be maintained over a greater number of operating cycles, especially the heavier loaded pivots.

Author(s):
Lake, R. G.
Author Organization(s):
HAMILTON WATCH CO LANCASTER PA
Pagination:
0059

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release, Document Partially Illegible
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited. Document Partially Illegible.

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
DA-36-034-ORD-3411
Monitor Series:
FA
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_5_Command and Control; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_5.3_Planning; JCA_1.2.1_Training; JCA_6_Net Centric
Modernization Areas:
Microelectronics
Communities of Interest:
Human Systems
Descriptor(s):
*JEWEL BEARINGS, *CLOCK DELAY MECHANISMS, SAPPHIRE, TIME DELAY FUZES
Field(s)/Group(s):
Machinery and Tools, Ammunition and Explosives
Report Date:
1962 Apr 09