Precision
High Speed Steel SKH51
PRECISION RECTANGULAR EJECTOR PINS WITH TIP PROCESS
P/W 0 –0.005 Free designation
Red character display
Part Number – L – P – W – R – N – In the order of V/A/C/Q/G – (AKC/AWC/NHC … etc.) ERVWR1X4 – 150.00 – P3.00 – W1.00 – R0.1 – N50 – G15 – NHC – 3
High Speed Steel SKH51
Alterations
Alteration details D P.167
Dies Steel SKD61 + Nitrided
Alterations
Code
Spec.
Alterations
Code
Spec.
0 °
0 °
Key flat cutting (angled) AKC = 1° increments E 0 ≦ AKC < 360 E When combined with KSA/WSA, 90° increments only Two parallel flats cutting (angled) AWC = 1° increments E 0 ≦ AWC < 360 E When combined with KSA/WSA, 90° increments only Two right angled flats cutting (angled) ARC = 1° increments E 0 ≦ ARC < 360 E When combined with KSA/WSA, 90° increments only Three flats cutting (angled) ADC = 1° increments E 0 ≦ ADC < 360 E When combined with KSA/WSA, 90° increments only
Head diameter change HC = 0.1mm increments E D + 1 ≦ HC < H
AKC
HC
270 °
90 °
4mm
180 °
JIS (6/8mm)
0 °
0 °
Head diameter change (precision) HCC = 0.1mm increments E D + 1 ≦ HCC < H–0.3
T Tolerance Unit of designation G ± 10 ′ 1° increments R ± 0.05 0.1mm increments A ± 0.02 0.01mm increments V ± 0.02 0.01mm increments C ± 0.02 0.01mm increments
Part Number
R position Head Thickness T P/W tolerance
AWC
HCC
270 °
90 °
ERVWR □ X ERVQR □ X ERVFR □ X
ERVWR □ Y ERVQR □ Y ERVFR □ Y
Top surface 2 places Bottom surface 2 places
P/W 0
–0.01
180 °
4mm (T4)
(Top surface 2 places R) ERVWR □ X ERVWR □ Y ERVJWR □ X ERVJWR □ Y
(Bottom surface 2 places R) ERVQR □ X ERVQR □ Y ERVJQR □ X ERVJQR □ Y
(4 places R) ERVFR □ X ERVFR □ Y ERVJFR □ X ERVJFR □ Y
4 places
0 –0.005
Head thickness change TC = 0.1mm increments E T/2 ≦ TC < T (Dimensions L and N remain unchanged) E T–TC ≦ Lmax.–L
P/W 0
0 °
0 °
ERVJWR □ X ERVJWR □ Y ERVJQR □ X ERVJQR □ Y ERVJFR □ X ERVJFR □ Y
Top surface 2 places Bottom surface 2 places
–0.02
ARC
TC
－ 0.02 TC 0
4/6/8mm (JIS)
270 °
90 °
P/W 0
4 places
–0.005
T
180 °
P.189/190
Select a tip shape from
4 － ± 0.01 R
± 0.01 R
± 0.01 R
P/W 0
Dowel hole boring NC = 90° increments
–0.003
0 °
0 °
0 °
0 °
R ≦ 0.5
※ 20 (R process range)
Step R
X C ombination with other than NHC/NHN not available Range of designation/Designation method/Details of standards: D P.167
ADC
NC
（ D ≦ 2
R ≦ 0.3 ）
90 °
270 °
Standard size
270 °
90 °
180 °
180
Total Length Designation Free designation
Dowel hole + Spring pin driving NCW = 90° increments
－ 0.02 0
0 °
0 °
0 － 0.005
－ 0.005 0
0 °
T
P
P
± 0.01 R
± 0.01 R
Two flats cutting (angled) KGA = 1° increments E 0 < KGA < 360
＋ 5 0
－ 5 0
（ L － N ）
KGA
NCW
N
X Combination with other than NHC/NHN not available Range of designation/Designation method/Details of standards: D P.167 Numbering on the head Range of designation/Designation method: D P.168
90 °
270 °
90 °
0 － 0.005
270 °
P
L ＋ 0.05 0
180 °
180
N dimension short
E K = P 2 + W 2 (K is dimension before R–chamfering)
E P ≧ W
M Material H Hardness
SKH51
90 °
Two flats cutting (angled) KGD = 1° increments E 0 < KGD < 360 E Pay attention to the standard position of 0°.
58–60HRC Range of guaranteed retention diameter (D) precision/base material hardness /Step R (Details D P.165 )
Angular pin
0 °
※ R processing includes the tip processing part. E R ± 0.01 is the target value for machining. Adjustment with the mounting hole side is required.
5 2 3
KGD
NHC
180 °
5
D/2
Rectangular R dimension
270 °
Head thickness JIS
Head thickness 4mm
Shoulder cutting (1 plate) KSA = 0.1mm increments E W/2 + 0.1 ≦ KSA ≦ D/2–0.1
Tip process
Automatic sequential numbering on the head Range of designation/Designation method: D P.168
1
2
3
Part Number
0.01mm increments
KSA
NHN
N 1mm increments
Caulking type
R Kmax.
Nmin.
Type
Tip shape
E ERJWR/ERJFR Available when D ≧ 8 E Only available combination is with CSW/CSF
H T H T
D
L
P
W
Head thickness 4mm
Head thickness JIS
Rectangular shank
MC
Shoulder cutting (2 parallel plates) WSA = 0.1mm increments E W/2 + 0.1 ≦ WSA ≦ D/2–0.1
Tapping
WSA
MC
2
0.80–1.80 0.80–2.30 1.00–2.80 1.00–3.30 1.00–3.80 1.20–4.30 1.50–4.80 1.80–5.30 2.00–5.80 2.00–6.30 2.30–6.80 2.30–7.80
4 5 6
4 5 6 7
1.9 2.4 2.9 3.4 3.9 4.4 4.9 5.4 5.9 6.4 6.9 7.9
D8 c M4 D10 c M5
50.00–250.00
D shaped
M × 1
2.5
0.1
4
3
Blade edge shape
1X 1Y 2X 2Y 3X 3Y 4X 4Y 5X 5Y 6X 6Y 7X 7Y
ERVWR (Top surface 2 places R) ERVQR (Bottom surface 2 places R)
ERVJWR (Top surface 2 places R) ERVJQR (Bottom surface 2 places R)
(C recess processing at 2 points on top)
3.5
0.60–
CSW, CSF: Range of designation W CSW, CSF 1.0 ≦ W < 1.5 0.3
0.15
N ≧ 33 (L ＞ 200 c N ≧ 50)
7
2 － CSW R
C chamfering processing at 2 points on top (except tip) for relief is performed. Designation method CSW1 – E25
4
8
4.5
0.2
CSW
8
20 ≦ (L – N) ≦ 200
5
4
0.5 1 1.5
9
W ≧ 1.5
＋ 5 0
5.5
50.00–300.00
6
P
0.3
E
N (C processing range)
9
6
10
E P ≧ 1.5 E CSW, CSF < W/2 E = 1mm increments E 5 ≦ E ≦ (L–N)–20 E R process range D P.168
ERVFR (4 places R)
ERVJFR (4 places R)
(C recess at 4 points) 4 － CSF R
6.5
0.80–
10
11
C chamfering processing at 4 points (except tip) for
R ≦ W –
N ≧ 40 (L ＞ 200 c N ≧ 50)
7 8
2 –0.05
relief is performed. Designation method CSF0.5 – E30
11 15
13 15
CSF
8
10 3.00–9.80 9.9 E Designate P/W dimensions within the Kmax. K = P 2 + W 2 (K is dimension before R–chamfering) E P ≧ W E Select the R dimension within the range of R ≦ W – 2 –0.05
＋ 5 0
P
E
N (C processing range)
Designate the length of R processed part 5 ≦ RC ≦ (L−N)−30 and RC ≦ 40 RC = 1mm increments Designation method RC25 E Adds RC recess processing at all places R processed.
Part Number
In the order of V/A/C/Q/G
–L–P–W–R–N–
Order
RC
Type Tip shape D ERVWR 1X
P
4 –150.00–P3.00–W1.00–R0.1– N50 – G15
N
RC
Precision Standard
Delivery Quotation
Pmin. Pmax.
Squareness of the tip corner
W plane as the base (Pmax. – Pmin.) ≦ 0.01
Rmax. ≦ 0.03 (deburring R) E Corner R value outside R processing range The tip corners have been slightly trimmed to measure the P/W dimensions. (Details D P.166 )
Rmax.
Corner R value of the tip corner
197
198
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