Shaft diameter designation/Total length selection type
Die Steel SKD61 + Nitriding
STRAIGHT EJECTOR PINS –P DIMENSION DESIGNATION, L DIMENSION SELECTION TYPE–
L
Part Number – L – P – (KC/WKC … etc.) EPJG 4.5 – 200 – P4.23 – WKC2.115
High Speed Steel SKH51 + Hard chromate Die Steel SKD61 + Nitriding High Speed Steel SKH51
Alterations
Alteration details D P.9
Alterations Code
Spec.
Alterations Code
Spec.
Head diameter change HC = 0.1mm increments E P + 1 ≦ HC ＜ H, P ≧ 1.5
Single flat cutting P/2 ≦ KC < H/2
HC
KC
0 － 0.1
KC
Head thickness change TC = 0.1mm increments E T/2 ≦ TC ＜ T, P ≧ 1.5 E L dimension becomes shorter by (T–TC).
Two flats cutting P/2 ≦ WKC < H/2
TC
WKC
TC
Die Steel SKD61
0 － 0.1
WKC
T
b1 (Range of guaranteed shaft diameter precision)
x 1
＋ 0.1
About Designation Unit for Key Flat Cutting
Dowel hole boring E Available when H ≧ 4 X Combination with other than NHC/NHN not available Dowel hole + Spring pin driving E Applicable when H ≧ 4 X Combination with other than NHC/NHN not available Dowel hole + Dowel pin driving E Applicable when H ≧ 4 X Combination with other than NHC/NHN not available
Varied dimension flat cutting P/2 ≦ KAC < H/2 KBC = 0.1mm increments only KAC < KBC < H/2
T d ℓ 4 2 3 6 3 5 8 T d ℓ 1 4 2 5 6 3 8 T d ℓ 2 4 2 5 6 3 8
0 d
Pre–Hardened Die Steel SKD61
KAC KBC
NC
－ 0.1 0
－ 0.1 0
KAC
KBC
T
Stainless Steel SUS440C
(1) To align the key flat with the shaft diameter Unit of designation 0.005mm increments possible
R ≦ 0.5 （ P ≦ 1.99 R ≦ 0.3 ） T
d
Two flats (right angled) cutting P/2 ≦ RKC < H/2
NCW
RKC
0 － 0.1
RKC
T
P
＋ 0.1 ＋ 5
L
4mm
d
Three flats cutting P/2 ≦ DKC < H/2
NCS
DKC
JIS (6/8mm) JIS (6/8mm)
0 － 0.1
DKC
DKC
T
10mm
Numbering on the head Rangeof designation and Designation method: D P.10 X Combination with SKC/MC not available Automatic sequential numbering on the head Range of designation and Designation method: D P.10 X Combination with SKC/MC not available
217
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
Four flats cutting P/2 ≦ SKC < H/2
NHC
SKC
0 － 0.1
SKC
P –0.01 –0.02 P 0 - 0.005
SKD61 equivalent + Nitriding 900HV– Base material: 40–45HRC
± 0.5 AG ° 0 °
M Material
Two flats (angled) cutting P/2 ≦ KGC < H/2 AG = Designation 1° increments 0 < AG < 360
Head thickness T T Tolerance
Part Number
H Hardness Surface:
1 2 3
T P dimension tolerance P ≦ 12.00 P ＞ 12.00
NHN
KGC
0 –0.02 0 –0.05
EPNG
4mm (T4)
KGC
Range of guaranteed shaft diameter precision/Base material hardness/Range of guaranteed surface hardness for nitriding (details D P.7 )
P 0
–0.01 –0.02
–0.01 –0.03
–0.002
EPJG
6/8mm (JIS)
120 ° 120 °
P M P 8.00– 9.99 M4 P10.00–11.99 M5 P12.00–15.99 M6 P16.00–24.99 M8
Three flats cutting at 120° P/2 ≦ KTC < H/2
MC
Head tapping E A pplicable for EPJG when P ≧ 8.00 X Combination with any other alteration not available
0 － 0.1 120 °
Standard Size Total Length Designation
KTC
MC
Head thickness 4mm
Head thickness JIS
KTC
Part Number
M × 1
L Selection
P 0.01mm increments
Type
H T
H T
No.
Head thickness 4mm Head thickness JIS
Shaft Diameter Designation Shaft Diameter/ Total Length Designation
1.5 100 150 200
1.00– 1.49 1.50– 1.99 2.00– 2.49 2.50– 2.99 3.00– 3.49 3.50– 3.99 4.00– 4.49 4.50– 4.99 5.00– 5.49 5.50– 5.99 6.00– 6.49 6.50– 6.99 7.00– 7.99 8.00– 9.99 10.00–11.99 12.00–14.99 15.00–15.99 16.00–19.99 20.00–24.99
3 4 5 6
2
100 150 200 250 300 350
2.5
–
–
–
3
100 150 200 250 300 350
3.5
Tip Process
7
4
100 150 200 250 300 350
8
Engraving
4.5
8
5
100 150 200 250 300 350
9
Gas Vent
EPNG
5.5 100 150 200 250 300 350
6
4
9
6
10
100 150 200 250 300 350
6.5
10
11
7 8
100 150 200 250 300 350
EPJG
11 15 17 20 21
13 15 17 20 21 25 30
100 150 200 250 300 350
10 12 15
100 150 200 250 300 350
8
16 100 150 200 250 300 350
20 25
150 200 250 300
–
–
–
200 300
E Nitriding may extend to the head as it is applied after dimension P machining.
Part Number – L – P EPJG 6 – 200 – P5.61
Quotation
Delivery
Order
29
30
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