Shaft diameter designation/ Total length selection type
Shaft diameter/Total length designation type
Total length designation type
High Speed Steel SKH51 Head thickness 4mm
EXTRA PRECISION STRAIGHT EJECTOR PINS –P DIMENSION DESIGNATION, L DIMENSION SELECTION TYPE/L DIMENSION DESIGNATION TYPE/P/L DIMENSION DESIGNATION TYPE–
L
L
L
Part Number – L – P – (KC/WKC … etc.) EPV–L 2 – 150.00 – KC1.5
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
Precision single flat cutting P/2 ≦ VKC < H/2
VKC
HC
VKC － 0.02 0
Die Steel SKD61
Head diameter change (precision) HCC = 0.1mm increments E P + 1 ≦ HCC < H−0.3, P ≧ 1.5
VWC Precision two flats cutting P/2 ≦ VWC < H/2
b 1 (Range of guaranteed shaft diameter precision)
x 1
HCC
0 － 0.02
VWC
Pre–Hardened Die Steel SKD61
About Designation Unit for Key Flat Cutting
Head thickness change TC = 0.1mm increments E T/2 ≦ TC < T EPV–G c Dimension L becomes shorter by (T–TC). EPV–L/EPVB c E T–TC ≦ Lmax.–L (Dimension L remains unchanged)
Single flat cutting P/2 ≦ KC < H/2
0
KC
TC
KC － 0.1 0
TC
－ 0.02
Stainless Steel SUS440C
T ＝ 4 － 0.02 R ≦ 0. 5 （ P ≦ 2 R ≦ 0.3 ） 0
4
0 －
P
0.002
L
WKC Two flats cutting P/2 ≦ WKC < H/2
TRN Adds a relief under the head. E Available when P ≧ 0.6
(1)To align the key flat with the shaft diameter Unit of designation EPV−G/EPVB 0.0005mm increments possible EPV−L 0.05mm increments possible
4mm
0 － 0.1
WKC
JIS (6/8mm)
Varied dimension flat cutting P/2 ≦ KAC < H/2 KBC = 0.1mm increments only KAC < KBC < H/2
Numbering on the head Range of designation and Designation method: D P.10 E Available when H ≧ 2 X Combination with SKC not available Automatic sequential numbering on the head Range of designation and Designation method: D P.10 E Available when H ≧ 2 X Combination with SKC not available
Head thickness T L Dimension Tolerance
T P Dimension Tolerance
Part Number
Tip Face Roughness
217
KAC KBC
NHC
+ 5 + 0.1
－ 0.1 0
－ 0.1 0
EPV–G (Tip diameter designation/Total length selection type)
10mm
–
KAC
KBC
M Material SKH51 H Hardness 58–60HRC Range of guaranteed shaft diameter precision/base material hardness (Details D P.7 ) Overall quenched product. (No annealing on head)
0 –0.002
EPV–L
4mm (T4)
(L dimension designation type)
+ 0.01 0
P –0.01 –0.02 P 0 - 0.005
Two flats (right angled) cutting P/2 ≦ RKC < H/2
1 2 3
EPVB
RKC
NHN
(L/P dimension designation type)
RKC － 0.1 0
■ P dimension designation, L dimension selection type
■ L dimension designation type
Lapping on the tip face E Available when P ≧ 0.6 E Applicable to EPV−L/EPVB Full length tolerance alteration L + 0.01 0 c + 0.005 0 E Applicable for 1.5 ≦ P ≦ 5 E Applicable to EPV−L/EPVB
P 0
DKC Three flats cutting P/2 ≦ DKC < H/2
–0.002
TMC
Part Number
Part Number
L 0.01mm increments
P 0.001mmincrements
L
0 － 0.1
H T
H T
L
DKC
DKC
Type
P
Type
No.
Standard Size Total Length Designation
(2)To designate arbitrary key flat dimensions Unit of designation 0.1mm
＊ 0.3 ＊ 0.4
0.4 60
0.300–0.399 0.400–0.499 0.500–0.599 0.600–0.699 0.700–0.799 0.800–0.899 0.900–0.999 1.000–1.499 1.500–1.999 2.000–2.499 2.500–2.999 3.000–3.499 3.500–3.999 4.000–4.499 4.500–4.999
2
20.00–60.00
2
Four flats cutting P/2 ≦ SKC < H/2
(L designation in 0.005mm increments possible)
SKC
LKC
0.5 0.6 0.7 0.8 0.9
－ 0.1 SKC 0
L
0.5 0.6 30.00–100.00
60 100
Shaft Diameter Designation Shaft Diameter/ Total Length Designation
AG ° 0 °
Two flats (angled) cutting P/2 ≦ KGC < H/2 AG = Designation 1° increments 0 < AG < 360
± 0.5
Shaft diameter tolerance alteration (range alteration) P 0 –0.002 c –0.001 –0.003
0.7 0.8 0.9 1 1.5
3
KGC
PKC
KGC
3
1
60 100 150
120°
Three flats cutting at 120° P/2 ≦ KTC < H/2
Tip Process
120°
EPV–G
1.5
4
KTC
EPV–L
4
120°
0
2
4 5 6
KTC
－ 0.1
Engraving
2
4 5 6
2.5
2.5
50.00–150.00
3
Gas Vent
3
3.5
100 150
7
3.5 4 4.5 5
4
7
4.5
8
5
8
E The H dimension for P < 0.4 is 2. ■ P/L dimension designation type
E ＊ The H dimension for P ≦ 0.4 is 2.
Part Number
L 0.01mm increments
P 0.001mm increments
H T
Part Number – L – P EPV–G 2 – 150 – P1.725 EPV–L 2 – 150.00
Type
No.
Order
0.4 20.00–60.00
0.300–0.399 0.400–0.499 0.500–0.599 0.600–0.699 0.700–0.799 0.800–0.899 0.900–0.999 1.000–1.499 1.500–1.999 2.000–2.499 2.500–2.999 3.000–3.499 3.500–3.999 4.000–4.499 4.500–4.999
2
0.5 0.6 0.7 0.8 0.9
30.00–100.00
Quotation
Delivery
3
1
EPVB
1.5
4
2
4 5 6
2.5
50.00–150.00
3
3.5
7
4
4.5
8
5
21
22
E The H dimension for P < 0.4 is 2.
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