P/L/N dimension designation type
Stainless Steel SUS440C
STEPPED EJECTOR PINS –P/L/N DIMENSION DESIGNATION TYPE–
N
L
Part Number – L – P – N – (KC/WKC ... etc.) EWSJF 4 – 180.00 – P3.85 – N50 – SKC2.0
High Speed Steel SKH51
Alterations
Die Steel SKD61 + Nitrided Die Steel SKD61 Prehardened Die Steel SKD61 Stainless Steel SUS440C High Speed Steel SKH51 + Hard chromate
Alteration details D P.99
Alterations Code
Spec.
Alterations Code
Spec.
Head diameter change HC = 0.1mm increments E D + 1 ≦ HC ＜ H
Single flat cutting D/2 ≦ KC ＜ H/2
KC
HC
KC － 0.1 0
Head diameter change (precision) HCC = 0.1mm increments E D + 1 ≦ HCC ＜ H–0.3
WKC Two flats cutting D/2 ≦ WKC ＜ H/2
R ≦ 0.5
HCC
Step R
0 － 0.1
（ D ≦ 2
R ≦ 0.3 ）
WKC
About Designation Unit for Key Flat Cutting
Head thickness change TC = 0.1mm increments E T/2 ≦ TC ＜ T (Dimensions L and N remain unchanged) E T–TC ≦ Lmax.–L
Varied width parallel flats cutting D/2 ≦ KAC ＜ H/2 KBC = 0.1mm increments only KAC ＜ KBC ＜ H/2
T d ℓ 4 2 3 6 3 5
KAC KBC
0 － 0.02 TC
TC
－ 0.1 0
－ 0.1 0
KAC
KBC
－ 0.02 0
T
T
(1) To align the key flat with the retention diameter Unit of designation 0.05mm increments possible
P － 0.005 0
－ 5 0 N
（
L － N ）
＋ 0.1
4mm JIS (6/8mm) 10mm
Dowel hole boring E Available when H ≧ 4 X Combination with other than NHC/NHN/GVC not available Dowel hole + Spring pin driving E Available when H ≧ 4 X Combination with other than NHC/NHN/GVC not available
d 0
ℓ 1
T d 4 2 6 3
0 ＋ 0.02
Two flats (right angled) cutting D/2 ≦ RKC ＜ H/2
L
RKC
NC
5
RKC － 0.1 0
T
d
DKC Three flats cutting D/2 ≦ DKC ＜ H/2
NCW
M Material SUS 440C H Hardness 56–60HRC
0 － 0.1
Part Number Head thickness T P Tolerance EWSF 4mm (T4) 0 –0.005 EWSJF 6mm (JIS)
P –0.01 –0.02
DKC
DKC
T
Range of guaranteed retention diameter (D) precision/ Range of guaranteed base material hardness/Step R (Details D P.97 )
P 0
Numbering at the back part of the head Range of designation and Designation method: D P.100 X Combination with SKC not available Automatic sequential numbering on the head Range of designation and Designation method: D P.100 X Combination with SKC not available
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
217
–0.005
Four flats cutting D/2 ≦ SKC ＜ H/2
SKC
NHC
－ 0.1 SKC 0
P 0
–0.002
AG °
± 0.5
Two flats (angled) cutting D/2 ≦ KGC ＜ H/2 AG = 1° increments 0 ＜ AG ＜ 360
Head thickness 4mm
Head thickness JIS
Part Number
0.01mm increments
1 2 3
0 °
Tip Diameter Designation Total Length Designation
KGC
NHN
KGC
N 1mm increments
Type
120 ° 120 °
Gas vent machining S, B = 1mm increments E 2 ≦ S ≦ 10, S + 5 ≦ B ≦ 30 E Available when P ≧ 3
H T H T
D
L
P
Head thickness 4mm
Head thickness JIS
Three flats cutting at 120° D/2 ≦ KTC ＜ H/2
KTC － 0.1 120 ° 0
Tip Diameter Total Length Designation Tip Diameter Total Length Designation
KTC
GVC
S
B
0.60 – 1.40 0.80 – 1.90 0.80 – 2.40 1.00 – 2.90 1.50 – 3.40 1.50 – 3.90 2.50 – 4.40 3.00 – 4.90 3.50 – 5.40 4.00 – 5.90
1.5
3 4 5 6
N ≧ 15 and 15 ≦ (L–N) ≦ 150
Tip Process
2
2.5
–
–
–
Engraving
3
Gas Vent
3.5
40.00–200.00 (50.00)
EWSF
4
7
• N ≧ 15 (T4) • N ≧ 30 (JIS) and 20 ≦ (L–N) ≦ 150
4
8
4.5
8
EWSJF
5
6
9
5.5
9
6
10
E The figures in ( ) for L dimension are for EWSJF only.
Part Number – L – P – N EWSJF 5 – 185.00 – P3.00 – N130
Order
Delivery Quotation
115
116
Powered by FlippingBook