Attachment 2 - Type 8 Center Truck Resilient Wheel.pdf
PDF 133 KB Posted
- Attached to
- RFP - Light Rail Wheel Measuring Devices
- Solicitation number
- BD-20-1206-40000-40000-49322
- Issued by
- Suffolk County, Massachusetts
About this file
This document contains the technical specifications for a Type 8 Center Truck Resilient Wheel assembly to be used on light rail vehicles. The assembly is being procured by the Massachusetts Bay Transportation Authority (MBTA). The specifications detail the dimensions, materials, and manufacturing requirements for the wheel components including the hub, tire, conical ring, rubber blocks, fasteners, and other related parts. Key requirements include dimensional tolerances, surface finish, torque settings, and matching criteria for the tire pairs. This wheel assembly will be used on the MBTA's light rail system.
The specifications indicate that two pairs of matched tires (four tires total) are to be packaged on one pallet, with each pair matched within 0.012 inches on diameter and all tires on the same pallet within 0.100 inches on diameter. Specific part numbers, quantities, and weights are provided in the bill of materials. This appears to be a technical drawing or manufacturing specification rather than a contract solicitation document.
View the file
Other files
| File | Type | Posted |
|---|---|---|
| Attachment 6 - Wheel definitions.pdf | ||
| RFP 45-20 Wheel Measuring Devices.docx | DOCX document | |
| Response Form B - Technical Response.xlsx | XLSX spreadsheet | |
| Attachment 7 - Minimum Insurance Requirements.docx | DOCX document | |
| Attachment 4 - Type 9 Motor Truck Resilient Wheel.pdf | ||
| Attachment 3 - Type 8 Motor Truck Resilient Wheel.pdf | ||
| Attachment 5 - Type 9 Center Truck Resilient Wheel.pdf | ||
| Response Form C - Price Proposal.xlsx | XLSX spreadsheet | |
| Attachment 1 - Type 7 Resilient Wheel.pdf |
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Text version
SECTION A-A
SECTION D-D
SECTION B-B
SECTION C-C
A A
B B
C C
D D
DRAWN:
ECN:
SAVED AS:
MATERIAL:
HEAT TREAT:
DESCRIPTION:
WARNING! CONFIDENTIAL - THIS DRAWING CONTAINS CONFIDENTIAL INFORMATION AND IS BEING PROVIDED ON THE CONDITION THAT IT CANNOT BE USED, DUPLICATED, OR DISCLOSED, IN WHOLE OR IN PART, EXCEPT AS DIRECTED BY PENN MACHINE COMPANY IN WRITING. DRAWING © PMC ALL RIGHTS RESERVED.
PENN MACHINE CO., JOHNSTOWN, PA
FINISH WEIGHT:
RAW MAT'L #:
PMCo PART #:
Dwg Size:
441.9 lbmass
707669.idw
C
00707669 707669
ASSEMBLY, WHEEL
SHEET 1 OF 1
PMCo DWG #:
CHECKED:
PROJECT: TRANSIT
MDC 11/26/2014
SEE BILL OF MATERIAL
TMW 11/26/2014
ECN-14-106 R0
REVISION:
A
A
D
D
B
B
C
C
BILL OF MATERIAL
WEIGHTDESCRIPTIONQTYDwg. No.PART No.ITEM
177.8CENTER, HUB1PM-8799005758791
213.5TIRE1PM-8798-NP007030952
41.8RING, CONICAL1PM-8800005758873
6.6F4 RUBBER BLOCK25100.00.01.84LD5685034
1.5SHCS 1/2-20X2.50 PLT-ZINC8ASTM A-574006453705
0.1HHPP .25-19 BSP PLT-ZINC1DIN910002637296
0.0GASKET 0.80 OD X 0.56 ID X 0.08 THICK1 001239437
0.01/4- 19 SQUARE HEAD PIPE PLUG1 006453548
O-RING 72 NBR 15622x1410005685389
0.5ASSEMBLY, EXTERNAL SHUNT3PM-96040065279210
0.1HHCS-LOCK-WZ 1/4-20X0.50 PLT-ZINC6GRADE 50062520511
0.0PLASTIC PLUG4GPN 3000064556712
TORQUE TO
8 FT-LBS
KNOCK OFF ALL SHARP CORNERS
SURFACE FINISH 125 min Ra S
TOLERANCE
±.03 ±.01 ±.005 ± 1°
DECIMAL PLACE
ONE PLACE DECIMAL
TWO PLACE DECIMAL
THREE PLACE DECIMAL
ANGULAR DIMENSIONS
TOLERANCES & MACHINE NOTES
(UNLESS OTHERWISE SPECIFIED)
DIMENSIONS IN INCHES
R E
V
IS
IO
N
CUSTOMER:
BOSTON - MBTA
BUILDER/MACHINE: MODEL: CUST/OEM DWG: CUST REV:CUSTOMER #2: CUSTOMER #3: LINE/SERVICE:LINE/SERVICE:LINE/SERVICE:
BO84
CUSTOMER #4: LINE/SERVICE: CUSTOMER #5: LINE/SERVICE:
NOTES:
1. CONICAL RING STAND-OFF SHOULD BE .250 TO .350.
2. TWO WITNESS MARKS 1" X 3" SHALL BE PUT ON WHEEL USING PERMANENT WHITE PAINT.
3. MATCHING: TWO PAIRS OF TIRES (4 TIRES TOTAL) TO BE PACKAGED ON ONE PALLET.
EACH PAIR OF TIRES TO BE MATCHED WITHIN 0.012" ON DIAMETER.
ALL TIRES ON SAME PALLET TO BE WITHIN 0.100" ON DIAMETER.
5.670 - .020 .040+
7.500 - .024 .000+
BOTH SIDES
1.00.12
1.66.061.67.06(1.32)
4.331 - .000 .125+
4.000 - .000 .125+
26.000 - .000 .012+
1.44.03
.750.031
TAPING LINE
21.024 .008
20.787 .008
20.118 .008
15.875
21.646 - 21.662
23.030
TORQUE TO
85 FT-LBS
.016 A .024
.020 A
R E
V
0/
/2
M D
C
(D
-4
.0
.0
W
A S
.0
.0
R E
0/
/2
C
(B
- 2 ) D
E
LE
TE
D
D
ET
A
IL
E
(B
-3 ) A
D D
E D
N
EG
A
TI
V E
B O
R E
TA
PE
R
N O
TE
(B
-4 ) U
P D
A
TE
D B
O R
E D
IA
M
E
TE
R
TO
N
EW
C
EN
TE
R
R O
U G
H B
O R
E D
IA
M
E
TE
R A
N D
U S
ED
C
EN
TE
R
IA
M E
TE
R
R
E
1/
/2
C
(B -3
) 5 .6
.0
W
AS
5.
.0
R.039 R.039
4.875 - .000 .005+
NEW CENTERS
5.089 - .000 .003+
USED CENTERS NEGATIVE BORE TAPER USED CENTERS ONLY
THIS SIDE MAY BE LESS THAN OPPOSITE SIDE
BORE DIAMETER BY 0.0003 MAX
A
File details come from the government source that posted it. Updated .