ALTERATION GUIDE FOR LEADER PINS
■ List of Alterations and Applicable Products
○ : Alteration available
GPH GPPTA GPPTB P.791 P.793 P.796 P.797 P.799 P.801 P.803 P.805 P.807 P.809 P.811 P.813 P.815 / 817 GPHL GPH–XL GPJ GPJL GPJ–XL GPHLSP GPHLO □ GPHOT GPHOT–XL GPSL GPS–XL GPOL GPSLO □ GPSOT GPX GPP
Alterations
Code
Spec.
Alteration details Code
The number of oil grooves (n) and E 1 /P 1 are listed in the tables below. E Nmax. = L−{E + E 1 + (n 一 1)P 1 + 3 2 W} E When GPHOT/GPHOT−XL( P.803 ) (N + B)max. = L−{E + E 1 + (n−1)P 1 + W}
N W
E
○ ○ ○ ○
○ ○ ○
○ ○
Full length alteration LC
– – – –
– – – –
–
–
–
– – – –
– – – –
Oil groove processing
○ ○ ○ ○ ○ ○ ○ ○
Tip tapping
MC
D 8 ～ 30 32 ～ 60
W 3 5
OC
○ ○ ○ ○
○
Tapping on the head MMC
–
– –
–
3 2
○ ○
○
Tip tapering
GC YC
–
–
–
–
1 E 1 P
X Combination with GC not available
Stopper groove processing Leader assist processing Press–fit section tolerance alteration Introduction recess processing
○
○
○
–
–
–
–
–
–
–
–
–
–
Range of spiral groove processing can be designated. SOF = 1mm increments P + 5.5 ≦ SOF ≦ L−N L P 60–70 10 75–120 15 125–180 20 185–300 25 305–350 30
○ (D40–60)
○ (D40–60)
○ (40/50)
○ (D40–60)
○ (D40–60)
○
GA
–
–
–
–
–
–
–
Spiral groove processing (Free designation)
○ ○ ○ ○ ( GPJL Only )
○ ○ ○
○ ( GPJL Only )
○ (
DKC
–
–
–
–
GPJL Only )
SOF
○ ○ ○
FC
–
–
–
–
–
–
–
–
–
–
P
E
Elimination of sliding part
○
○ ○
N
SOF
BN
–
–
–
–
–
–
–
–
–
–
–
L
○ ○
○ ○
Oil groove processing OC
–
–
–
–
–
–
–
–
–
Quotation Designation method SOF50
Groove process- ing for air relief
○
AC
–
–
–
–
–
–
–
–
–
–
–
Range of groove processing for air relief can be designated. AC = 1mm increments 10 ≦ AC ≦ L−(N + 5) Quotation Designation method AC124
Groove processing for air relief
AC
■ Alteration details
AC
Alterations
Code
Spec.
Total length alteration LC = 1mm increments Shortens the full length L as shown in the drawing. E Lmin. ＜ LC ＜ Lmax. (Tip dimension E remains unchanged.)
L
Full length alteration
LC
● Oil groove processing dimensions (OC alteration details)
LC
M × Pitch M 6 × 1.0 M10 × 1.5 M12 × 1.75 M16 × 2.0
ℓ 12 20 24 32 ℓ 10 16
E Available when D ≧ 12 E Refer to the example D P.790
No. of grooves (n)
D
Part Number
No. of grooves (n)
Part Number
L
E E 1
P 1
L
E E 1
P 1
Example
12/13
Tip tapping Processing
Type
Type
D
D
MC
16 20
50– 60 65–100 105–160 165–200 205–260 265–300 305–350 355–400 50– 60 65–100 105–160 165–200 205–260 265–300 305–350 60–100 105–160 165–200 205–260 265–330 335–400 405–450 80–140 145–190 195–240 245–300 305–380 385–450 455–500 100–150 155–190 195–240 245–300 305–360 365–400 405–460 465–500 505–550 200–240 245–300 305–360 365–400 405–460 465–500 505–550
12 10 13 11 14 12 16 14 18 16 20 18 22 20 24 22 12 10 13 11 14 12 16 14 18 16 20 18 22 20 14 12 15 13 16 14 17 15 18 16 19 17 20 18 26 24 28 26 30 28 32 30 34 32 36 34 38 36 28 26 30 28 32 30 34 32 36 34 38 36 40 38 42 40 44 42 30 28 32 30 34 32 36 34 38 36 40 38 42 42
30– 45 50– 65
0
1 2 3 1 2 3 1 2
2
ℓ
8
3 6
25–60
● Alteration
M
Example of YC
6
70
E Available when D ≧ 12
M × Pitch
D
30– 45 50– 65
0
Tapping on the head Processing
30
5
12–20 M5 × 0.8
10
4 6
MMC
3
6
M8 × 1.25
25–60
70
ℓ
30– 40 45– 50 55– 80 85–120 125–160 165–200 30– 40 45– 50 55– 80 85–120 125–160 165–200 30– 40 45– 50 55– 80 85–120 125–160 165–200 205–250 30– 40 45– 50 55– 90 95–150 155–200 205–260 265–300 40– 60 65–110 115–160 165–200 205–260 265–300 305–350 50– 60 65–110 115–160 165–200 205–260 265–300
9 0
M
Tapers the tip as shown in the drawing. E = 1mm increments
10 9
2
12
5
Range of dimension E (1mm increments) D E 8 5 ≦ E ≦ 15
GPSL
11 10 12 11 13 12 9 0
3
E E ＞ 20 of D16–30 is available only when L ≧ 50. K = 1°increments 1° ≦ K ≦ 10°
32
5
GBHE
3
1 2
Designation method GC−E20−K10 X Combination with OC not available E When combining with MC D12–20 D/2−E × tanK°−M/2 ≧ 2 D25–60 D/2−E × tanK°−M/2 ≧ 3 E Depending upon the combination of the D dimension and the E
10 12 13 16 20 25 28 30 32
10 9
5 ≦ E ≦ 20 5 ≦ E ≦ 25 5 ≦ E ≦ 30 5 ≦ E ≦ 35 5 ≦ E ≦ 40
13
5
11 10 12 11 13 12 9 0
Tip tapering Processing
3
GC
2
GPHL GPH–XL GPSL
GPHL GPH–XL GPSL
● Alteration
Example of MC
35
1 2
※
E ±1
8
3
10 9
35 40 50 60 dimension, cutting lines sometimes appear on the tapered part of the tip. (This is related to the depth of the high frequency hardened surface layer.) Cutting lines Adds a stopper groove. Use this alteration when a tap for fixing a leader pin cannot be used. E Refer to the example D P.790
16
5
11 10 12 11 13 12 15 14
5 ≦ E ≦ 20
GPS–XL GPHOT GPHOT–XL GPSOT
GPS–XL GPHOT GPHOT–XL GPSOT
3
2
GPHL or GPJL
40
8
0 8
1 2
25
10
Stopper groove Processing
3
11 9 12 10 15 13 16 14 18 16 10 8 11 9 12 10 15 13 16 14 18 16 22 20 12 10 13 11 14 12 16 14 18 16 20 18
YC
20
5
SPS or SPD
3
10
2
C1
ℓ φ d
D
M
2
Adds a tap to attach a leader assist pin (GAP D P.814 ). ※ M pitch is coarse thread.
40 50 60 80
24
30
29
Leader assist Processing
50
8
GA
30
35
36
3
25
5
3
ℓ
36
45
41
M
12
Press–fit section tolerance alteration
Changes the press–fit section's tolerance. Dm5 c D + 0.005 0
2
2
DKC
60
8
28
N
5
3
3
Adds an introduction recess processing on the press–fit section. FC = 1mm increments 3 ≦ FC ≦ N–10 Recess processing section D –0.01 –0.03
Introduction recess processing
FC
※ GPHL/GPH–XL c E = 5
FC
N
BN The sliding part is eliminated, so the only specifications are the diameters of the press– fit part and the recess. E BN is indicated as the B dimension.
Sliding part
789
790
N
L
Powered by FlippingBook