Shaft diameter designation/ Total length selection type
Pre–hardened Die Steel SKD61 Head thickness JIS
Standard type
Total length designation type
Shaft diameter/Total length designation type
STRAIGHT EJECTOR PINS –STANDARD/P DIMENSION DESIGNATION,L DIMENSION SELECTION TYPE/L DIMENSION DESIGNATION TYPE/P/L DIMENSION DESIGNATION TYPE–
L
L
L
L
Part Number – L – P – (KC/WKC … etc.) EPAJB 5 – 125.61 – P4.97 – RKC2.485
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
Single flat cutting P/2 ≦ KC < H/2
KC
HC
KC － 0.1 0
b 1 (Range of guaranteed shaft diameter precision)
Head thickness change TC = 0.1mm increments E T/2 ≦ TC ＜ T EPAJ/EPAJG c Dimension L becomes shorter by (T–TC). EPAJ−L/EPAJB c E T−TC ≦ Lmax.−L (Dimension L remains unchanged)
x 1
About Designation Unit for Key Flat Cutting
Die Steel SKD61
WKC Two flats cutting P/2 ≦ WKC < H/2
TC
TC
0 － 0.1
WKC
T
Pre–Hardened Die Steel SKD61
0 ＋ 0.1
Varied dimension flat cutting P/2 ≦ KAC < H/2 KBC = 0.1mm increments only KAC < KBC < H/2
－ 0.05 0 R ≦ 0.5 （ P ≦ 2 R ≦ 0.3 ）
T d ℓ 4 2 3 6 3 5 8
d
Dowel hole boring X Combination with other than NHC/ NHN not available
KAC KBC
NC
(1) To align the key flat with the shaft diameter Unit of designation EPAJ/EPAJ–L 0.05mm increments possible EPAJG/EPAJB 0.005mm increments possible
－ 0.1 0
－ 0.1 0
－ 0.02 － 0.01
Stainless Steel SUS440C
T
KAC
KBC
P
T
L
ℓ 1
d
T d 4 2
Dowel hole + Spring pin driving X Combination with other thanNHC/ NHN not available
Two flats (right angled) cutting P/2 ≦ RKC < H/2
Part Number
Head thickness T L Tolerance Tip Face Roughness
4mm
RKC
NCW
RKC － 0.1 0
6 8
5
3
EPAJ
(Standard)
T
JIS (6/8mm)
+ 5 + 0.1
–
EPAJG (Tip diameter designation/ Total length selection type) EPAJ–L (L dimension designation type)
4/6/8mm (JIS)
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
217
DKC Three flats cutting P/2 ≦ DKC < H/2
10mm
M Material H Hardness
SKD61 (Pre–hardened)
NHC
+ 0.05 ＊ 0
40–45HRC Range of guaranteed shaft diameter precision/base material hardness (Details D P.7 )
0 － 0.1
EPAJB
DKC
DKC
(L/P dimension designation type)
P –0.01 –0.02 P 0 - 0.005
+ 0.5 0
＊ EPAJ–L L ＞ 500 c L
Four flats cutting P/2 ≦ SKC < H/2
1
2
3
SKC
NHN
■ Standard type
■ P dimension designation, L dimension selection type
－ 0.1 SKC 0
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
Part Number
Part Number
L Selection
L Selection
P 0.01mm increments
H T
H T
P 0
MC
AG °
± 0.5
Head tapping E Applicable when P ≧ 8.00 X Combination with any other alteration not available
Two flats (angled) cutting P/2 ≦ KGC < H/2 AG = 1° increments 0 < AG < 360
Type
P
Type
No.
P M P 8.00– 9.99 M4 P10.00–11.99 M5 P12 M6
–0.002
0 °
KGC
MC
2
2
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– 5.99 6.00– 6.99 7.00– 7.99 8.00– 9.99
4 5 6 7
4 5 6 7
100 200
100 200
Standard Size Total Length Designation
KGC
M × 1
2.5
2.5
4
4
3
3
120 ° 120 °
Three flats cutting at 120° P/2 ≦ KTC < H/2
－ 0.1 120 ° 0
3.5
3.5 4 4.5
KTC
4
100 200 300
100 200 300
Shaft Diameter Designation Shaft Diameter/ Total Length Designation
KTC
8
8
4.5
EPAJ
EPAJG
5 6 7 8
5 6 7 8
9
9
6
6
10 11 13 15 17
10 11 13 15 17
Tip Process
100 200 300
100 200 300 500 800 1000
Engraving
10 12
10 12
8
8
200 300 10.00–11.99
200 300 500 800 1000
Gas Vent
■ L dimension designation type
■ P/L dimension designation type
Part Number
Part Number
0.01mm increments
L 0.01mm increments
H T
H T
Type
P
Type
No.
L
P
2
2
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– 5.99 6.00– 6.99 7.00– 7.99 8.00– 9.99 10.00–11.99
4 5 6 7
4 5 6 7
40.00–200.00
40.00–200.00
2.5
2.5
4
4
3
3
3.5
3.5 4 4.5
4
40.00–300.00
8
8
4.5
EPAJ–L
EPAJB
5 6 7 8
5 6 7 8
9
6
9
6
40.00–300.00
10 11 13 15 17
10 11 13 15 17
40.00–1000.00
10 12
10 12
8
8
Quotation
Part Number
– L – P
Delivery
Order
(Standard) (L dimension designation type) (Tip diameter designation/ Total length selection type) (L/P dimension designation type)
100 150.35 100 180.05
– – – –
EPAJ 3 EPAJ–L 3 EPAJG 4 EPAJB 4
– –
P3.99 P3.99
43
44
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