Die Steel SKD61 + Nitriding
Standard type
STRAIGHT EJECTOR PINS –STANDARD TYPE–
L
Part Number – L – (KC/WKC … etc.) EPN 16 – 500 – KC8
High Speed Steel SKH51 + Hard chromate Die Steel SKD61 + Nitriding High Speed Steel SKH51
Alterations
Quotation
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
KC Single flat cutting P/2 ≦ KC < H/2
HC
0 － 0.1
KC
b1 (Range of guaranteed shaft diameter precision)
x 1
Die Steel SKD61
Head thickness change TC = 0.1mm increments E T/2 ≦ TC < T, P ≧ 1.5 E L dimension becomes shorter by (T–TC).
WKC Two flats cutting P/2 ≦ WKC < H/2
TC
TC
0 － 0.1
About Designation Unit for Key Flat Cutting
WKC
Pre–Hardened Die Steel SKD61
T
＋ 0.1
Dowel hole boring E Applicable 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
0 d
T d ℓ 1 4 2 5 6 3 8 T d ℓ 4 2 3 6 3 5 8
KAC KBC
R ≦ 0.5 （ P ≦ 2 R ≦ 0.3 ）
NC
－ 0.1 0
－ 0.1 0
Stainless Steel SUS440C
KAC
KBC
T
T
P
＋ 5 ＋ 0.1
L
(1) To align the key flat with the shaft diameter Unit of designation 0.05mm increments possible
d
RKC Two flats (right angled) cutting P/2 ≦ RKC < H/2
NCW
4mm
0 － 0.1
RKC
T
JIS (6/8mm) JIS (6/8mm)
T P dimension tolerance L P 1–13 15–20
Head thickness T T Tolerance
Part Number
d
SKD61 equivalent + Nitriding 900HV– Base material: 40–45HRC Surface:
T d ℓ 2 4 2 5 6 3 8
M Material H Hardness
DKC Three flats cutting P/2 ≦ DKC < H/2
25
NCS
0 –0.02 0 –0.05
EPN
0 － 0.1
10mm
4mm (T4)
–0.01 –0.02 –0.01 –0.03
–0.01 –0.03 –0.01 –0.03
–0.01 –0.04 –0.01 –0.05
L ≦ 500 L ≧ 600
DKC
DKC
T
Range of guaranteed shaft diameter precision/Base material hardness/Range of guaranteed surface hardness for nitriding (details D P.7 )
EPJ
6/8mm (JIS)
P –0.01 –0.02 P 0 - 0.005
Numbering on the head Range of 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
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
SKC Four flats cutting P/2 ≦ SKC < H/2
217
NHC
0 － 0.1
SKC
Head thickness 4mm
Head thickness JIS
Part Number
± 0.5 AG ° 0 °
L Selection
Two flats (angled) cutting P/2 ≦ KGC < H/2 AG = Designation 1° increments 0 < AG < 360
Type
P 0
1 2 3
NHN
H T H T
P
KGC
–0.002
Head thickness 4 mm
Head thickness JIS
KGC
1 1.1 1.2 1.3 1.4 100 150 1.5
Standard Size Total Length Designation
3
MC
P 8
M
Head tapping E Available for EPJ when P ≧ 8 X Combination with any other alteration not available
100 150 200 100 150 200
120 ° 120 °
M4
Three flats cutting at 120° P/2 ≦ KTC < H/2
0 － 0.1 120 °
10 M5 12/15 M6 16–25 M8
MC
1.6 1.7 1.8 1.9
KTC
4
2
100 150 200 250 300 350 400
M × 1
KTC
2.1 2.2 2.3 2.4
100 150 200 250 300
Shaft Diameter Designation Shaft Diameter/ Total Length Designation
5
2.5
100 150 200 250 300 350 400
– –
–
2.6 2.7 2.8 2.9
100 150 200 250 300
6
3
100 150 200 250 300 350 400450 500
3.1 3.2 3.3 3.4
100 150 200 250 300 350 400
Tip Process
3.5
100 150 200 250 300 350 400450 500
7
3.6 3.7 3.8 3.9
100 150 200 250 300 350 400 100 150 200 250 300 350 400
4
(500) (600)
Engraving
(4.1)
(4.2)
(4.3)
(4.4)
200
300
400
8
4.5
100 150 200 250 300 350 400
(500)
Gas Vent
8
EPN
(4.6)
(4.7)
(4.8)
(4.9)
200
300
400
4
5
100 150 200 250 300 350 400
500 (600)
9
(5.1)
(5.2)
(5.3)
(5.4)
200
300
400
6
5.5
100 150 200 250 300 350 400
500
9
(5.6)
(5.7)
(5.8)
(5.9)
200
300
400
10
6
100 150 200 250 300 350 400
500 (600) (700) (800)
(6.1)
(6.2)
(6.3)
(6.4)
200
300
400
EPJ
6.5
100 150 200 250 300 350 400 100 150 200 250 300 350 400 100 150 200 250 300 350 400(450) 100 150 200 250 300 350 400(450) 100 150 200 250 300 350 400(450) 100 150 200 250 300 350 400 100 150 200 250 300 350 400(450) 100 150 200 250 300 350 400
500 (600) (700)
10
11
7 8
500 (600) (700) (800) (900) (1000) 500 (600) (700) (800) (900) (1000) 500 (600) (700) (800) (900) (1000) 500 (600) (700) (800) (900) (1000)
11 15 17 18 20 21
13 15 17 18 20 21 25 30
10 12
(13)
500
8
15 16 20 25
500 (600) (700) (800) (900) (1000) 500 (600) (700) (800) (900) (1000) 500 600 700 800 900 1000 500 600 700 800 900 1000
150 200 250 300 400
– –
–
200
300
400
E The P dimension enclosed in brackets ( ) is applicable only for EPN. E The L dimension enclosed in brackets ( ) is applicable only for EPJ.
Part Number
Part Number – L EPN 3 – 100 50PACK-EPN 3 – 100 100PACK-EPN 3 – 100
L
Order
PACK Type
P
Packed Product
1.5 2 3 4 5 100 150 200 6 150 200
50 PACK 100 PACK
EPN
300
EPJ 4 5 6 8
150 200 250 300
Delivery Quotation
25
26
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