ARSR-2 Pedestal Main Bearing DE-C-2877 Rev C.pdf
PDF 369 KB Posted
- Attached to
- Pedestal Main Bearing
- Solicitation number
- 6973GH-25-Q-00091
About this file
This document is a detailed technical specification for an ARSR-2 Pedestal Bearing issued by the Federal Aviation Administration (FAA). The specification provides precise dimensional and manufacturing requirements for a bearing with critical technical specifications, including outer race dimensions, hole configurations, and material hardness requirements. Key technical notes specify contact angles (35°), diametral clearance tolerances, and material specifications: balls must be core hardened SAE 52100 steel with Rockwell hardness of 60-67, while races should be flame or induction hardened SAE 4140, 4150, or 8660 steel with Rockwell hardness of 57-62. The bearing is designed with specific requirements including a polyamid, brass, or steel segmented separator, and eccentricity/runout not to exceed 0.003" when the outer race rotates on a stationary inner race. The bearing weighs approximately 182 lbs and is coated with preservative oil per MIL-L-3150, with manufacturer markings to be vibro-peened on the top face of the outer race.
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Other files
| File | Type | Posted |
|---|---|---|
| Sol_6973GH-25-Q-00091.pdf | ||
| 6973GH-25-Q-00091mod1.pdf | ||
| DE-C-2877 drawing update request - Feb 2025.pdf |
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Text version
WILL CLEAR .Ol
M!N. CHAMFER
12. HOLES
'¾� OIA. THR
¾, CIA. c.'BOOE -375 +:g'i'� OP-
E.QUALL Y SPACED
1$1 Al x@.010 I
G HOLE!:> -----'
3/e·IG UNC.-2.B THRU
EQUALLY SPACED
LOCATED � SHOWN IN
RE$PEC..T TO 12 Mlo. HOLES IEB!AlX!0-060j
+.ooo BRG. O.D. 47. 475 -.ooe.
+.ooo
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08 rr + .• a:
ow N2 02 N-
II C .002.
-------- __ 4;,.�o --
--'o,....1,,:A,.,_. _____ _
TYP.
I 4 HOLES 3/e" 0\Jl-., LOCATED AS SHOWN IN
RESPECT TO 12. MTG. HOLES
1$!A! Xi0-0GO!
OUTER RACE HOLE PLAN
AS VIEWED FROM FACE. "B•
NO SC.ALE
$C.ALE. : FULL 01'1. NOTE.D.
NOTES:
1. CONTACT, ANGLES -350,
2 . . 000 - .001 DIMTRAL CLEARANCE BEFORE INSTALLATION.
3. BRG. IS COATED All OVER WITH PRESERVATIVE OIL PER MIL-L-3150.
�. APPROXIMATE BRG. WEIGHT - 182 LBS.
S. CAGE Will NOT EXTEND BEYOND RACE FACES.
6. MARKING -
VIBROPEENED ON TOP FACE OF OUTER RACE - MANUFACTURER'S ,�Al'£, PART NU/IBER, SERIAL NUMBER, DATE, AND NSN.
7. BALLS TO BE CORE HORDENED, SAE 52100 STEEL WITH Re OF 60 to 67.
3. RACES TO BE FLAME OR IKDUCTIOK IIARDENl'D SAi: 4140. 4150OR
8660 STEEL \
V
ITI I 1 IARDNE.SS Re 57 TO 62.
9. SEPARATOR SHALL BE POLYAMID, BRASS OR STEEL SEGrENTED.
10. ECCENTRICITY AND RUNOUT NOT TO EXCEED .003" WITH THE OUTER RACE
ROTATING ON A STATIONARY INNER RACE,
NSN 5840-00-"::,78-IBIO
AOOED NEW NOTE 7 8 REVISED NOTES 7,88
FEDERAL AVIATION ADMINISTRATION
MIKE IIOHRONEY AEIIOHAUTICAL CE�TER OKLAHO.,A CITT, OKLAHOMA
ARSR I a 2
PEDESTAL BEARING
SPECIFICATIONS
C 3-26-25 MOD DIM .638 TO .648, CHG TITLE TO ARSR 2
Ben McCarley Text Box
Ben McCarley Text Box .648 +.000 -.010
Ben McCarley Text Box
Ben McCarley Text Box c
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