RDSO/T–8926: Dimensional Report for Improved Switch Expansion Joint (65mm Max. Gap) for B.G. 60kg UIC on PSC Sleepers for Curves >2⁰ to 4⁰
Format No. ISEJ/65/F-04
DIMENSIONAL INSPECTION REPORT OF CURVED IMPROVED SWITCH EXPANSION (ISEJ)
60 Kg to Drg No. RDSO/T-8926
(Stock Rail in
assembled condition/ Tongue Rail in loose)
|
SL No |
PARAMETERS |
DRG. DIM. (MM) |
Mode of Measurement |
Observation (mm) |
|||
|
Set no. 01 |
Set no. 02 |
||||||
|
SL. No. 01 |
SL. No. 02 |
||||||
|
LH |
RH |
LH |
RH |
||||
|
1 |
Overall Length |
18700+3 |
By Tape |
18702 |
18702 |
18702 |
18702 |
|
2 |
Length of Stock Rails RT-8926/1 |
7100+3 |
By Tape |
7100 |
7103 |
7100 |
7103 |
|
3 |
Length of Tongue
Rails RT-8926/3 |
5750+3 |
By Tape |
5751 |
5752 |
5751 |
5752 |
|
4 |
Length of Stock
Rails RT-8926/2 |
5920+3 |
By Tape |
5920 |
5923 |
5920 |
5923 |
|
5 |
Length of Tongue
Rails RT-8926/4 |
6950+3 |
By Tape |
6951 |
6950 |
6951 |
6950 |
|
6 |
Versine for
Assembly @ 4675 mm dist. accordingly |
+1 |
By Chord & Scale |
OK |
OK |
OK |
OK |
|
For 2.0º - 2.5º |
42.2-56.2-42.2 |
|
OK |
OK |
OK |
OK |
|
|
For 2.5º - 3.0º |
51.5-68.7-51.5 |
|
OK |
OK |
OK |
OK |
|
|
For 3.0º - 3.5º |
60.9-81.2-60.9 |
|
OK |
OK |
OK |
OK |
|
|
For 3.5º - 4.0º |
70.3-93.7-70.3 |
|
OK |
OK |
OK |
OK |
|
|
7 |
Matching of
assembled Stock Rail |
0.5mm filler |
Filler Gauge |
OK |
OK |
OK |
OK |
|
8 |
Composite head
width of assembled Stock Rail |
89.5 +1.5/-0.5 |
No.16 |
OK |
OK |
OK |
OK |
|
9 |
Composite Foot
width of assembled Stock Rail |
150 +0.5/-1.0 |
No.10 |
OK |
OK |
OK |
OK |
|
10 |
Half head width
of big stock &Tongue Rail |
44.75 +0.25/-1.0 |
No.18 |
OK |
OK |
OK |
OK |
|
11 |
Half foot width
of big stock & Tongue Rail |
83.75 +0.5/-1.0 |
No.11 |
OK |
OK |
OK |
OK |
|
12 |
Machining
length of Tongue Rail at foot |
610 |
No. 13 |
OK |
OK |
OK |
OK |
|
13 |
12 mm down at toe
end of big stock rail (RT-8926/1) |
12/80 |
No-14* |
OK |
OK |
OK |
OK |
|
14 |
3 mm down at toe
end of tongue &small stock rail (RT-8926/2) |
3/50 |
No-3 |
OK |
OK |
OK |
OK |
|
15 |
Side Slope of
Tongue / small Stock Rail (RT-8926/2) |
3/50 x 5R |
No.20 |
OK |
OK |
OK |
OK |
|
16 |
10R Tongue
/Stock Rail |
10R |
No.19 |
OK |
OK |
OK |
OK |
|
17 |
50R (inside)
Tongue Rail |
50R |
No.5 |
OK |
OK |
OK |
OK |
|
18 |
50R (Outside) big
Stock Rail |
50R |
No.21 |
OK |
OK |
OK |
OK |
|
19 |
Out foot
Machining of assembled Stock Rail(RT-8926/1) |
As per Drg. |
No. 15 |
OK |
OK |
OK |
OK |
|
20 |
Outside foot
Planning of Stock Rail(RT-8926/1) |
As per Drg. |
No. 17 |
OK |
OK |
OK |
OK |
|
21 |
End Squareness |
-- |
By Tri-square |
OK |
OK |
OK |
OK |
|
22 |
Chamfering 3x3
& removal of sharp edges not more than 2R |
----- |
By suitable means |
OK |
OK |
OK |
OK |
|
23 |
Surface Roughness
(randomly) |
3.2 micron |
By surface roughness tester |
OK |
OK |
OK |
OK |
*Modified gauge
Format No. ISEJ/65/F-05
DIMENSIONAL INSPECTION REPORT OF CURVED IMPROVED SWITCH EXPANSION (ISEJ)
60 Kg to Drg No. RDSO/T-8926
(Assembly of
Curved Improved SEJ)
1. Description: Layout of Improved SEJ to drawing no. RDSO/T-8926
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation (mm) |
|||
|
Set no. 01 |
Set no. 02 |
||||||
|
SL. No. 01 |
SL. No. 02 |
||||||
|
LH |
RH |
LH |
RH |
||||
|
1 |
Overall length of
SEJ |
18700+3 |
By Steel Tape |
18703 |
18703 |
18703 |
18703 |
|
2 |
Composite head
width of Stock Rail |
89.5(+1.5,
-0.5) |
Vernier & G-16 |
89.6 |
89.8 |
89.6 |
89.8 |
|
3 |
Composite Foot
width of Stock Rail |
150(+1,
-0.5) |
Vernier & G-10 |
150.3 |
151 |
150.3 |
151 |
|
4 |
Matching of
Tongue / Stock Rail |
0.5mm filler |
By Filler gauge |
OK |
OK |
OK |
OK |
|
5 |
Center to center
distance of CI Chair |
600 |
By Steel Tape |
OK |
OK |
OK |
OK |
|
6 |
Mean position of
tongue rail |
Centre of CI chair |
By Chord |
OK |
OK |
OK |
OK |
|
7 |
GAP between Stock
and Tongue Rail at mean position |
40mm |
Vernier |
40,40 |
40,40 |
40,40 |
40,40 |
|
8 |
Removal of Sharp
edges |
< 2R |
Visual |
OK |
OK |
OK |
OK |
|
9 |
Alignment |
±1 |
By Chord |
OK |
OK |
OK |
OK |
|
10 |
Condition of
Fittings |
--- |
visually |
OK |
OK |
OK |
OK |
|
11 |
Versine for
Assembly @ 4675 mm dist. accordingly |
+1 |
By Chord & Scale |
|
|
|
|
|
For 2.0º - 2.5º |
42.2-56.2-42.2 |
|
OK |
OK |
OK |
OK |
|
|
For 2.5º - 3.0º |
51.5-68.7-51.5 |
|
OK |
OK |
OK |
OK |
|
|
For 3.0º - 3.5º |
60.9-81.2-60.9 |
|
OK |
OK |
OK |
OK |
|
|
For 3.5º - 4.0º |
70.3-93.7-70.3 |
|
OK |
OK |
OK |
OK |
|
2. Description: Stock Rail (Drg. No. RDSO/T-8926/1)
|
Sl. No. |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation (mm) |
|||
|
Set no. 01 |
Set no. 02 |
||||||
|
SL. No. 01 |
SL. No. 02 |
||||||
|
LH |
RH |
LH |
RH |
||||
|
1. |
Length / Machining Length |
7100 (+3) |
By Tape |
7100 |
7103 |
7100 |
7103 |
|
2. |
Top Width |
44.75 (+0.25, -1) |
Vernier/G-18 |
45 |
44.90 |
45 |
44.90 |
|
3. |
Bottom Width |
83.75 (+0.5, -1) |
Vernier/G-11 |
84 |
84.2 |
84 |
84.2 |
|
4. |
Top Slope |
12/80 |
By Scale, Gauge/G-14 |
OK |
OK |
OK |
OK |
|
5. |
Radius on Head Foot |
50R |
By Gauge/G-21 |
OK |
OK |
OK |
OK |
|
6. |
Radius on Foot & Head (NGF Side) |
10R |
By Gauge/G-19 |
OK |
OK |
OK |
OK |
|
7. |
Chamfering |
3 x 3 |
Visual |
OK |
OK |
OK |
OK |
|
8. |
In Foot flange M/C Length |
5720 |
By Tape |
OK |
OK |
OK |
OK |
|
9. |
Sloping Length (2 Nos.) |
350 |
By Scale |
OK |
OK |
OK |
OK |
|
10. |
Flange Thickness at machined area |
11.5 |
By Gauge/G-15 |
OK |
OK |
OK |
OK |
|
11. |
Versine @ 1775 mm dist. accordingly |
+1 |
By Chord & Scale |
|
|
|
|
|
For 2.0º - 2.5º |
6.1-8.1-6.1 |
|
OK |
OK |
OK |
OK |
|
|
For 2.5º - 3.0º |
7.4-9.9-7.4 |
|
OK |
OK |
OK |
OK |
|
|
For 3.0º - 3.5º |
8.8-11.7-8.8 |
|
OK |
OK |
OK |
OK |
|
|
For 3.5º - 4.0º |
10.1-13.5-10.1 |
|
OK |
OK |
OK |
OK |
|
3. Description: Stock Rail (Drg. No. RDSO/T-8926/2)
|
Sl. No. |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation (mm) |
|||
|
Set no. 01 |
Set no. 02 |
||||||
|
SL. No. 01 |
SL. No. 02 |
||||||
|
LH |
RH |
LH |
RH |
||||
|
1. |
Length / Machining Length |
5920 (+3) |
By Tape |
5920 |
5923 |
5920 |
5923 |
|
2. |
Top Width |
44.75 (+0.25, -1) |
Vernier/G-18 |
44.9 |
45 |
44.9 |
45 |
|
3. |
Bottom Width |
83.75 (+0.5, -1) |
Vernier/G-11 |
84 |
83.8 |
84 |
83.8 |
|
4. |
Top Slope |
3/50 |
By Scale, Gauge,G-3 |
OK |
OK |
OK |
OK |
|
5. |
Side Slope |
3/50 |
By Scale, Gauge,G-3 |
OK |
OK |
OK |
OK |
|
6. |
Radius on Head |
5R |
By Gauge |
OK |
OK |
OK |
OK |
|
7. |
Radius on Foot |
10R |
By Gauge,G-19 |
OK |
OK |
OK |
OK |
|
8. |
Versine @ 1480 mm dist. accordingly |
+1 |
By Chord & Scale |
|
|
|
|
|
For 2.0º - 2.5º |
4.2-5.6-4.2 |
|
OK |
OK |
OK |
OK |
|
|
For 2.5º - 3.0º |
5.2-6.9-5.2 |
|
OK |
OK |
OK |
OK |
|
|
For 3.0º - 3.5º |
6.0-8.1-6.0 |
|
OK |
OK |
OK |
OK |
|
|
For 3.5º - 4.0º |
7.0-9.4-7.0 |
|
OK |
OK |
OK |
OK |
|
4. Description: Tongue Rail (Drg. No. RDSO/T-8926/3)
|
Sl.
No. |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation (mm) |
|||
|
Set no. 01 |
Set no. 02 |
||||||
|
SL. No. 01 |
SL. No. 02 |
||||||
|
LH |
RH |
LH |
RH |
||||
|
1. |
Length /
Machining Length |
5750 (+3) |
By Tape |
5751 |
5752 |
5751 |
5752 |
|
2. |
Machining Length
Top & Bottom |
603.5 / 610 |
By Gauge & Tape,G-13 |
OK |
OK |
OK |
OK |
|
3. |
Top Width |
44.75 (+0.25, -1) |
Vernier,G-18 |
45 |
44.5 |
45 |
44.5 |
|
4. |
Bottom Width |
83.75 (+0.5, -1) |
Vernier,G-11 |
84.2 |
84 |
84.2 |
84 |
|
5. |
Top Slope of head |
3/50 |
By Scale & Gauge,G-3 |
OK |
OK |
OK |
OK |
|
6. |
Side Slope |
3/50 & 5R |
By Scale & Gauge, G-20 |
OK |
OK |
OK |
OK |
|
7. |
Radius on Head
& Foot |
50 R |
By Gauge,G-5 |
OK |
OK |
OK |
OK |
|
8. |
Radius on Head
& Foot |
10 R |
By Gauge,G-19 |
OK |
OK |
OK |
OK |
|
9. |
Radius on Foot at
End |
10 R |
By Gauge,G-19 |
OK |
OK |
OK |
OK |
|
10. |
Versine @ 1737.5 mm dist. accordingly |
+1 |
By Chord & Scale |
|
|
|
|
|
For 2.0º - 2.5º |
5.8-7.8-5.8 |
|
OK |
OK |
OK |
OK |
|
|
For 2.5º - 3.0º |
7.1-9.5-7.1 |
|
OK |
OK |
OK |
OK |
|
|
For 3.0º - 3.5º |
8.4-11.2-8.4 |
|
OK |
OK |
OK |
OK |
|
|
For 3.5º - 4.0º |
9.7-12.9-9.7 |
|
OK |
OK |
OK |
OK |
|
5. Description: Tongue Rail (Drg. No. RDSO/T-8926/4)
|
Sl. No. |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation (mm) |
|||
|
Set no. 01 |
Set no. 02 |
||||||
|
SL. No. 01 |
SL. No. 02 |
||||||
|
LH |
RH |
LH |
RH |
||||
|
1. |
Length |
6950 (+3) |
By Tape |
6951 |
6950 |
6951 |
6950 |
|
2. |
Machining Length Top & Bottom |
603.5 / 610 |
By Gauge & Tape,G-13 |
OK |
OK |
OK |
OK |
|
3. |
Top Width |
44.75 (+0.25, -1) |
Vernier,G-18 |
44.8 |
45 |
44.8 |
45 |
|
4. |
Bottom Width |
83.75 (+0.5, -1) |
Vernier,G-11 |
84.25 |
84.25 |
84.25 |
84.25 |
|
5. |
Top Slope of head |
3/50 |
By Scale & Gauge,G-3 |
OK |
OK |
OK |
OK |
|
6. |
Side Slope |
3/50 & 5R |
By Scale & Gauge, G-20 |
OK |
OK |
OK |
OK |
|
7. |
Radius on Head & Foot |
50 R |
By Gauge,G-5 |
OK |
OK |
OK |
OK |
|
8. |
Radius on Head & Foot |
10 R |
By Gauge,G-19 |
OK |
OK |
OK |
OK |
|
9. |
Radius on Foot at End |
10 R |
By Gauge,G-19 |
OK |
OK |
OK |
OK |
|
10. |
Versine @ 1437.5 mm dist. accordingly |
+1 |
By Chord & Scale |
|
|
|
|
|
For 2.0º - 2.5º |
4.0-5.3-4.0 |
|
OK |
OK |
OK |
OK |
|
|
For 2.5º - 3.0º |
4.9-6.5-4.9 |
|
OK |
OK |
OK |
OK |
|
|
For 3.0º - 3.5º |
5.8-7.7-5.8 |
|
OK |
OK |
OK |
OK |
|
|
For 3.5º - 4.0º |
6.6-8.9-6.6 |
|
OK |
OK |
OK |
OK |
|
Dimension Sheet of Fittings/ other component of Improved SEJ
to drawing no. RDSO/T-8926
Description: C. I. Chair (Drawing
No. RDSO/T-6923)
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation (mm) |
Remarks |
||
|
1 |
2 |
3 |
|||||
|
1. |
Total Length |
520±2 |
Steel Tape |
521 |
521 |
520 |
Satisfactory |
|
2. |
Width |
300+1/-0 |
Steel Tape |
301 |
300 |
301 |
|
|
3 |
Hole position
for Plate Screw |
445 & 120 |
G-8,9 |
OK |
OK |
OK |
|
|
4 |
Hole dia for
Plate Screw |
27±0.8 |
Vernier&
G-8 |
27-27.7 |
27.2-27.5 |
27.3-27.7 |
|
|
5 |
position of rectangular hole for Tee- head bolt |
105/105 |
G-6,6A,&7 |
OK |
OK |
OK |
|
|
6 |
Size of rectangular hole for Tee- head bolt |
43×27 |
G-7 |
OK |
OK |
OK |
|
|
7 |
Top
machining/Profile of CI Chair |
As per drg. |
G-12,12A,12B |
OK |
OK |
OK |
|
|
8 |
Thickness at Rail
Seat |
36.5, 40, 45 |
Vernier |
36.5, 40, 45 |
36.5, 40, 45 |
36.5, 40, 45 |
|
|
9 |
Dia& depth
of slot for Tee-head bolt |
51,25 |
Vernier |
51,25.5 |
51, 26 |
51, 25 |
|
|
10 |
Condition of CI
Chair |
--- |
Visual |
OK |
OK |
OK |
|
Item: C.I. Chair (RDSO/T-4168)
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation (mm) |
Remarks |
|
|
1 |
2 |
|||||
|
1. |
Length |
520 (+ 2) |
By Tape & Gauge |
520 |
521 |
Satisfactory |
|
2. |
Width |
300 (+1, -0) |
By Tape & Gauge |
300.5 |
301 |
|
|
3. |
Hole Centre (Width Wise) |
120 (+1) |
By Tape & Gauge |
120.5 |
121 |
|
|
4. |
Hole Centre (Length Wise) |
445 (+1) |
By Tape & Gauge |
445 |
445 |
|
|
5. |
Hole Dia. For Plate Screw (4 Nos.) |
27 Dia. |
By Vernier |
OK |
OK |
|
|
6. |
Thickness at Edge |
32 |
By Vernier |
OK |
OK |
|
|
7. |
Thickness at Collar |
32 + 6 |
By Vernier |
OK |
OK |
|
|
8. |
Height (UP) |
44 |
By Vernier |
OK |
OK |
|
|
9. |
Height (Dn) |
36 |
By Vernier |
OK |
OK |
|
|
10. |
Thickness at Centre |
40 |
By Vernier |
OK |
OK |
|
|
11. |
Slop Length (1 in 20) |
162 (+2, -0) |
By Scale &Gauge |
OK |
OK |
|
|
12. |
Hole Dia. For ERC |
22 (+1, -0) |
By Scale & Gauge |
OK |
OK |
|
Description: M. S. Bracket
(Drawing No. RDSO/T-6924):
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation
(mm) |
Remarks |
|
|
1 |
2 |
|||||
|
1. |
Total Length |
300±3 |
Vernier |
300 |
300 |
Satisfactory |
|
2. |
Width of Bracket |
135 |
Vernier& Tri-Square |
OK |
OK |
|
|
3 |
Thickness of Bracket at bottom |
25 |
Vernier |
OK |
OK |
|
|
4 |
Hole dia |
28±0.8 |
Vernier |
OK |
OK |
|
|
5 |
Distance of hole
centre from edge |
35 |
Vernier |
OK |
OK |
|
|
6 |
Thickness &
spacing of stiffener |
25, 100 |
Vernier |
OK |
OK |
|
|
7 |
Spacing of hole
from edge & C/C |
45,105 |
Vernier |
OK |
OK |
|
Description: M. S. Bracket
(Drawing No. RDSO/T-6925):
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation
(mm) |
Remarks |
|
|
1 |
2 |
|||||
|
1. |
Total Length |
300±3 |
Vernier |
301 |
302 |
Satisfactory |
|
2. |
Width of Bracket |
137.5 |
Vernier& Tri-Square |
OK |
OK |
|
|
3 |
Thickness of Bracket at bottom |
20 |
Vernier |
OK |
OK |
|
|
4 |
Hole dia |
28±0.8 |
Vernier |
OK |
OK |
|
|
5 |
Distance of hole centre from edge |
40 |
Vernier |
OK |
OK |
|
|
6 |
Spacing of hole
from edge & C/C |
45,105 |
Vernier |
OK |
OK |
|
Description: M. S. Bracket with
packing piece(Drawing No. RDSO/T-6926):
|
SL No |
PARAMETERS |
DIM. (mm) |
Mode of Measurement |
Observation
(mm) |
Remarks |
|||
|
LH |
RH |
|||||||
|
1 |
2 |
1 |
2 |
|||||
|
1. |
Total Length |
300±3 |
Vernier |
301 |
302 |
301 |
302 |
Satisfactory |
|
2. |
Width of Bracket
with packing piece |
152.5 |
Vernier& Tri-Square |
OK |
OK |
OK |
OK |
|
|
3 |
Width of Bracket
without packing piece |
135 |
Vernier& Tri-Square |
OK |
OK |
OK |
OK |
|
|
4 |
Thickness of Bracket at bottom |
25 |
Vernier |
OK |
OK |
OK |
OK |
|
|
5 |
Hole dia |
28±0.8 |
Vernier |
OK |
OK |
OK |
OK |
|
|
6 |
Distance of hole
centre from edge |
35 |
Vernier |
OK |
OK |
OK |
OK |
|
|
7 |
Thickness &
spacing of stiffner |
25, 100 |
Vernier |
OK |
OK |
OK |
OK |
|
|
8 |
Spacing of hole
from edge & C/C |
45,105 |
Vernier |
OK |
OK |
OK |
OK |
|
|
9 |
Size of packing piece |
140×106×17.5 |
Vernier |
OK |
OK |
OK |
OK |
|
Description: Hardened Washer
(Drawing No. RDSO/T-8514):
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation
(mm) |
Remarks |
|
|
1 |
2 |
|||||
|
1. |
Length |
102.7 +0.0/-0.8 |
Vernier |
102 |
102 |
Satisfactory |
|
2. |
Width |
50 +0.8/-0.0 |
Vernier |
50.5 |
50.4 |
|
|
3 |
Dia. of hole |
27+0.52/-0.0 |
Vernier |
OK |
OK |
|
|
4 |
Thickness |
10 +0.6 |
Vernier |
OK |
OK |
|
|
5 |
Hole centre |
51.4+0.8 |
Vernier |
OK |
OK |
|
Description: Hardened Washer
(Drawing No. RDSO/T-8515):
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation
(mm) |
Remarks |
|
|
1 |
2 |
|||||
|
1. |
Length |
102.7 +0.0/-0.8 |
Vernier |
102 |
101.9 |
Satisfactory |
|
2. |
Width |
50+0.8/-0.0 |
Vernier |
50 |
50 |
|
|
3 |
Dia. of hole |
27+0.52/-0.0 |
Vernier |
OK |
OK |
|
|
4 |
Width of slot |
43 +0.8/-0.0 |
Steel scale |
OK |
OK |
|
|
5 |
Thickness |
10 +0.6 |
Vernier |
OK |
OK |
|
|
6 |
Depth of slot |
3 |
Vernier |
OK |
OK |
|
|
7 |
Hole centre |
51.4+0.8 |
Vernier |
OK |
OK |
|
Description: Angle Tie (Drawing
No. RDSO/T-6927):
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation
(mm) |
Remarks |
|
|
1 |
2 |
|||||
|
1. |
Total Length |
1470±3 |
Vernier |
1472 |
1470 |
Satisfactory |
|
2. |
Width |
75 |
Vernier |
OK |
OK |
|
|
3 |
Height |
75 |
Vernier |
OK |
OK |
|
|
4 |
Thickness |
10 |
Vernier |
OK |
OK |
|
|
5 |
Hole dia |
27±0.8 |
Vernier |
OK |
OK |
|
|
6 |
Distance of hole
centre from edge |
75,120,480 |
Vernier |
OK |
OK |
|
|
7 |
Hole height |
42 |
Vernier |
OK |
OK |
|
Description: Tee-head bolt
(Drawing No. RDSO/T-2659):
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation
(mm) |
Remarks |
|
|
1 |
2 |
|||||
|
1. |
Total Length |
95±3 |
Vernier |
95 |
95.2 |
Satisfactory |
|
2. |
Thread length |
50 |
Vernier |
OK |
OK |
|
|
3 |
Dia. of bolt |
25+1/-0 |
Vernier |
OK |
OK |
|
|
4 |
Head width of
bolt |
41 +1/-0.4 25 +1/-0.4 |
Vernier |
OK |
OK |
|
|
5 |
Thickness of head |
22±0.65 |
Vernier |
OK |
OK |
|
Description: Tee-head bolt
(Drawing No. RDSO/T-2660):
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation
(mm) |
Remarks |
|
|
1 |
2 |
|||||
|
1. |
Total Length |
110±3 |
Vernier |
110 |
111 |
Satisfactory |
|
2. |
Shank length |
50 |
Vernier |
OK |
OK |
|
|
3 |
Dia. of bolt |
25+/-0 |
Vernier |
OK |
OK |
|
|
4 |
Head width of
bolt |
41 +1/-0.4, 25 +1/-0.4 |
Vernier |
OK |
OK |
|
|
5 |
Thickness of head |
22±0.65 |
Vernier |
OK |
OK |
|
Description: HTS Bolt (Drawing
No. RDSO/T-8518)
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation (mm) |
Remarks |
|||
|
1 |
2 |
3 |
4 |
|||||
|
1. |
Total Length of
bolt |
90 +3/-0 |
Vernier |
90 |
90.5 |
90.5 |
91 |
Satisfactory |
|
2. |
Thread length of
bolt |
45 +2/-0 |
Vernier |
OK |
OK |
OK |
OK |
|
|
3 |
Diameter of bolt |
24±0.84 |
Vernier |
OK |
OK |
OK |
OK |
|
|
4 |
Head width of
bolt (A.F.) |
41 +0/-1 |
Vernier |
OK |
OK |
OK |
OK |
|
|
5 |
Head width of
bolt (C.C.) |
47 +0/-1 |
Vernier |
OK |
OK |
OK |
OK |
|
|
6 |
Head Thickness of
bolt |
15±0.9 |
Vernier |
OK |
OK |
OK |
OK |
|
|
7 |
Thickness of nut |
24.2 Max, 22.9 Min |
Vernier |
OK |
OK |
OK |
OK |
|
|
8 |
Head width of nut
(A.F.) |
41 +0/-1 |
Vernier |
OK |
OK |
OK |
OK |
|
|
9 |
Head width of nut
(C.C.) |
47 +0/-1 |
Vernier |
OK |
OK |
OK |
OK |
|
Description: Single Coil Spring
Washer (Drawing No. T-10773):
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation
(mm) |
Remarks |
|
|
1 |
2 |
|||||
|
1. |
Outer Dia |
44.4 Max |
Vernier |
44.4 |
44.4 |
Satisfactory |
|
2. |
Inner Dia |
27 +1/-0 |
Vernier |
27.2 |
27.3 |
|
|
3 |
Gap Bet. Two
Edge. |
2.5±1 |
Filler gauge |
OK |
OK |
|
|
4 |
Free Height |
14± 0.75 |
Vernier |
OK |
OK |
|
|
5 |
Thickness |
8±0.2 |
Vernier |
OK |
OK |
|
Description: Plate Screw (Drawing No.
RDSO/T-3911):
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation
(mm) |
Remarks |
|
|
1 |
2 |
|||||
|
1. |
Length |
140±5 |
Gauge |
140 |
140 |
Satisfactory |
|
2. |
Shank Dia. |
24+0.2, -0.1 |
Vernier |
OK |
OK |
|
|
3 |
Head height |
38 +2,-1 |
Vernier |
OK |
OK |
|
|
4 |
Dia. of
circular head |
48±0.5 |
Vernier |
OK |
OK |
|
|
5 |
Thread Pitch |
12.5 |
Vernier |
OK |
OK |
|
Description: Plate Screw (Drawing No.
RDSO/T-3915):
|
SL No |
PARAMETERS |
DRG. DIM. (mm) |
Mode of Measurement |
Observation
(mm) |
Remarks |
|
|
1 |
2 |
|||||
|
1. |
Length |
180±5 |
Gauge |
180 |
180 |
Satisfactory |
|
2. |
Shank Dia. |
24+0.2, -0.1 |
Vernier |
OK |
OK |
|
|
3 |
Head height |
38 +2,-1 |
Vernier |
OK |
OK |
|
|
4 |
Dia. of circular
head |
48±0.5 |
Vernier |
OK |
OK |
|
|
5 |
Thread Pitch |
12.5 |
Vernier |
OK |
OK |
|