SKH51 Wall thickness 0.6mm–
STRAIGHT EJECTOR SLEEVES
High Speed Steel SKH51 Die Steel SKD61 + Nitriding
Delivery Quotation
Part Number – L – P – V – S – (KC/WKC … etc.) ESV6 – 100.52 – V4.00 – S12 – KC 3.0
Alterations
Alteration details D P.225
4mm
Alterations Code
Spec.
Alterations Code
Spec.
E b 1 Range of guaranteed shaft diameter precision (Details D P.221 ) x 1 max. = 30
JIS (6/8mm)
Part Number
Head thickness
T D / P Tolerance
T V Tolerance
Concentricity
Applicable center pin shaft diameter tolerance
Shaft diameter selection type
Shaft diameter designation (0.01mm increments) type
Reduces the head thickness to less than standard. TC = 0.1mm increments E T–TC ≦ Lmax.–L E T/2 ≦ TC ＜ T (Dimensions L, (L–S) remain unchanged)
Single flat cutting (D or P)/2 ≦ KC ＜ H/2
KC
KC － 0.02 0
10mm
0 － 0.02
TC
ESV
ESVB
4mm (T4)
TC
+ 0.005 0
0 –0.005
ESVJ
ESVJB
T
0 –0.005
6/8mm (JIS)
◎φ 0.005
D(P) –0.01 –0.02
ESV–H ESVB–H
WKC Two flats cutting
Reduces the head diameter. HC = 0.1mm increments E Shaft diameter (D or P) ≦ HC ＜ H
+ 0.005 0
+ 0.01 0
*Note that for sleeves with V dimension tolerance , combination with center pins that have shaft diameter tolerance 0 –0.005 is not recommended. The reason for this is the fitting sections S are longer than ones with tolerance. of
(D or P)/2 ≦ WKC ＜ H/2
+ 0.01 0
0 － 0.02
–0.01 –0.02
About Designation Unit for Key Flat Cutting
4mm (T4)
D(P) 0
WKC
–0.01 –0.02
–0.005
ESV–M ESVB–M
◎φ 0.01
HC
E In relation to the diameter tolerance, alteration may create a straight piece with little diameter difference between the head and shaft.
Varied width parallel flats cutting (D or P)/2 ≦ KAC ＜ H/2 KBC = 0.1mm increments only KAC ＜ KBC ＜ H/2
KAC KBC
◎ 0.003
ESV ESVJ ESVB ESVJB
ESV–H ESV–M ESVB–H ESVB–M
－ 0.02 0
－ 0.02 0
(1) To align the key flat with the shaft diameter Unit of designation Shaft diameter (D) selection 0.05mm increments is possible Shaft diameter (P) designation 0.005mm increments is possible
KAC
KBC
x 1
b 1 (Guaranteed Range of Shaft-diameter Precision)
◎ 0.005
Reduces the head diameter. (precision) HCC = 0.1mm increments E (DorP) + 1 ≦ HCC ＜ H–0.3 Performs C chamfering on the tip. CGX = 0.1mm increments E 0.2 ≦ CGX ≦ 1.5 and CGX ≦ X Combination with RGX not available Performs R chamfering on the tip. RGX = 0.1mm increments E 0.3 ≦ RGX ≦ 1.5 and RGX ≦ X Combination with CGX not available
HCC
Two flats (right angled) cutting (D or P)/2 ≦ RKC ＜ H/2
RKC
◎ 0.01
RKC － 0.02 0
± 0.05 CGX 45 °
◎ 0.03
T － 0.02 0 R ≦ 0.5
＋ 0.005 0 D or P
＋ 0.01 0 D or P
CGX
(DorP)–V 2
DKC Three flats cutting
–0.1
V
V
◎ 0.06
(D or P)/2 ≦ DKC ＜ H/2
0 － 0.02
L
DKC
DKC
Concentricity
＋ 3
（ L － S ）
0
－ 3
S
0
RGX
Standard
± 0.1
C = V + (0.2–0.4)
＋ 0.02
＋ 0.05 0
M Material H Hardness
SKH51
）
0 （ L > 200
Four flats cutting (D or P)/2 ≦ SKC ＜ H/2
L
SKC
L
RGX
(DorP)–V 2
－ 0.02 SKC 0
58–60HRC Range of guaranteed base material hardness (Details D P.223 ) Overall quenching (No annealing on head)
–0.1
Total Length Designation
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
L
AG °
± 0.5
Two flats (angled) cutting (D or P)/2 ≦ KGC ＜ H/2 AG = 1°increments 0 ＜ AG ＜ 360 Three flats cutting at 120° (D or P)/2 ≦ KTC ＜ H/2
Free Designation Shaft Diameter(P) Total Length Designation
0 °
KGC
■ Shaft diameter (D) selection type Head thickness 4mm Head thickness JIS Part Number
KGC
120 ° 120 °
0.01mm increments
－ 0.02 120 ° 0
Stepped Shape
KTC
S 0.5mm increments
Type
KTC
H T H T
D
L
V
Taper Clearance
Head thickness 4mm
Head thickness JIS
3.5
40.00–225.00
0.80 – 2.30 0.80 – 2.80 0.80 – 3.80 0.80 – 4.80 0.80 – 5.80 2.00 – 6.20 2.00 – 7.20 2.00 – 8.20 2.00 – 9.20 2.00 –10.20 2.00 –11.20 2.00 –12.20
Effective Margin(S) Long
ESV/ESVJ 1.0 ≦ S ≦ (V × 3) and S ≦ 25 ESV–H/ESV–M 1.0 ≦ S ≦ (V×5) and S ≦ 25
7 8 9
4 5 6 7 8 9
–
– –
ESV ( V + 0.005 0
40.00–250.00 E ESVJ c L ≦ 225.00
)
Short Type
10 11 13 14 15 17
6
10 11 14 15 16 17 18 19
ESV–H ( V + 0.01 0 ) ESV–M ( V + 0.01 0 )
4
ESVJ ( V + 0.005 0 )
10 11 12 13 14
40.00–250.00
8
19
■ Shaft diameter (P) 0.01mm designation type Head thickness 4mm Head thickness JIS Part Number
0.01mm increments
S 0.5mm increments
Type
H T H T
No.
L
P
V
Head thickness 4mm
Head thickness JIS
40.00–225.00 3.20 – 3.99
4 5 6 7 8 9
7 8 9
–
– –
ESVB/ESVJB 1.0 ≦ S ≦ (V×3) and S ≦ 25 ESVB–H/ESVB–M 1.0 ≦ S ≦ (V×5) and S ≦ 25
ESVB ( V + 0.005 0
4.00 – 4.99 5.00 – 5.99 6.00 – 6.99 7.00 – 7.99 8.00 – 8.99 9.00 – 9.99 10.00 – 10.99 11.00 – 11.99 12.00 – 12.99 13.00 – 13.99
0.80 ≦ V ≦ (P–1.20)
40.00–250.00 E ESVJB c L ≦ 225.00
10 11 13 14 15 17
)
6
10 11 14 15 16 17 18 19
ESVB–H ( V + 0.01 0 ) ESVB–M ( V + 0.01 0 )
4
ESVJB ( V + 0.005 0 )
10 11 12 13 14
2.00 ≦ V ≦ (P–1.80)
40.00–250.00
8
19
Part Number
– L – P – V – S
Order
(D selection type) ESV6 – 150.00 – V4.00 – S12 (P designation type) ESVB6 – 140.00 – P5.95 – V3.95 – S11.5
229
230
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