EJECTOR SLEEVES
Stepped Ejector Sleeves
Straight Ejector Sleeves
T
S
S
T
L
L
Concentricity between the hole and shaft diameters
Free designation type
Free designation type
Hole diameter (V) Tolerance
Tip diameter (P) Tolerance
Total length designation type
Concentricity between the hole and shaft diameters
Hole diameter (V) tolerance
Head thickness (T)
Standard type
Head thickness (T)
Shaft diameter tolerance
Material
Smax.
Page
Page
Shaft diameter selection
Shaft diameter designation
Standard type
Total length designation
Page
Page
Material
Smax.
Page
Page
Shaft diameter selection
Shaft diameter designation
Page
Page
ESVF
ESVFB ESVBF
P.237
P.237
–
–
V × 3
+ 0.005 0
+ 0.005 0 + 0.01 0 + 0.005 0
ESV
ESVB
V × 3 and S ≦ 25
P.229
P.229
4mm (T4)
ESVFE
V × 3 and S ≦ 25
P.239
P.239
4mm (T4)
0 –0.005
◎
–
–
0.005
◎
0 –0.005
ESV–H
ESVB–H
V × 5 and S ≦ 25
P.229
P.229
–
–
+ 0.01 0 + 0.005 0
0.005
ESVFE–H ESVJFE ESVFE–M ESVKF–H
ESVBF–H ESVJBF ESVBF–M ESVKFB–H ESVKBF–H
V × 5 and S ≦ 25
P.239
P.239
6/8mm (JIS)
ESVJ
ESVJB
V × 3 and S ≦ 25
P.229
P.229
6/8mm (JIS)
V × 3 and S ≦ 25
P.239
P.239
–
–
–0.01 –0.02
ESV–M ESVK–H ESVKJ–H ESVK–M ESNV–L ESNVJ
ESVB–M ESVKB–H ESVKJB–H ESVKB–M
V × 5 and S ≦ 25
SKH51
P.229
P.229
–0.01 –0.02
V × 3 and S ≦ 25
P.239
SKH51
P.239
4mm (T4)
P.231
P.231
4mm (T4)
–
–
–
–
V × 10 and S ≦ 30
P.241
P.241
+ 0.01 0
◎ 0.01
0 –0.005
V × 10 and S ≦ 50
6/8mm (JIS) 4mm (T4) 4mm (T4) 6/8mm (JIS) 4mm (T4) 6/8mm (JIS)
+ 0.01 0
P.231
P.231
–
–
–
–
0 –0.005
◎ 0.01
ESVKFE–H ESVKJFE–H ESVKFE–M
P.243
P.243
–
–
–
–
–0.01 –0.02
6/8mm (JIS) 4mm (T4) 4mm (T4) 6/8mm (JIS) 4mm (T4) 6/8mm (JIS)
V × 10 and S ≦ 50
P.231
P.231
–
–
–
–
P.243 ESVKJBF–H
V × 10andS ≦ 50
P.243
–
–
–
–
ESNV P.245 ESNV–LC P.247
ESNVB ESJVB
–0.01 –0.02
P.249
P.249
ESVKBF–M
P.243
P.243
◎
–0.01 –0.02
50
0.03
ESNVF ESJVF
P.251
P.251
–
–
P.269
◎
SKD61 + Nitrided
–
50
–
–
0.03
–0.01 –0.02 –0.01 –0.02 –0.01 –0.03
ESN P.253 ESN–LC P.257
ESN–L
ESNB ESJB
SKD61 + Nitrided
H7
P.261
P.261
–0.01 –0.02 ( –0.01
P.269
100 (150)
H7
–0.03 )
◎ 0.06
ESJ
ESJL
ESNJ
ESNFT ESJFT
ESNF–LC ESJF–LC
ESNF ESJF
P.255
P.259
P.263
P.263
P.271
◎
＊＊
＊＊
–
100
0.06
(
)
DESL P.265
P.273
70
–
–
–
10mm
Straight Ejector Sleeves –Tapered type–
Stepped Ejector Sleeves –Tapered type–
T
S
T
S
L
L
Concentricity between the hole and shaft diameters
Concentricity between the hole and shaft diameters
Hole diameter (V) Finishing
Hole diameter (V) tolerance
Hole diameter (V) Finishing
Hole diameter (V) tolerance
Head thickness (T)
Tip diameter (P) Tolerance
Head thickness (T)
Tip diameter (P) Tolerance
Material
Smax.
Free designation type
Page
Material
Smax.
Free designation type
Page
4mm (T4) 4mm (T4)
◎ 0.003 ◎ 0.005
ESVX
+ 0.005 0
4mm (T4)
V × 3
0 –0.005
◎ 0.005 Grinding
ESVFX
P.235
SKH51
+ 0.005 0
V × 3
0 –0.005
P.227
SKH51
Grinding
ESVXN
Ejector Sleeves & One–step Center Pin Set
Short Ejector Sleeves (Straight Core Sleeves) E Straight Core Sleeves are published on index of Shaped Inlay Core Pins for Boss.
S
T
Head thickness (T)
Material
Sleeve shape
Center Pin shape
Total designated length
Free designation
Page
L
ESV–S– □ ESNS– □ ESJS– □ ESNM– □ ESJM– □
Concentricity between the hole and shaft diameters
Hole diameter (V) tolerance
Free designation type
4mm (T4) 4mm (T4) 6/8mm (JIS) 4mm (T4) 6/8mm (JIS)
＊＊
Head thickness (T)
Smax. (Reference)
Shaft diameter tolerance
SKH51
Straight
Tip stepped straight
–
Product name
Material
Page
Page
Shaft diameter selection
Shaft diameter designation
ESNP– □ ESJP– □ ESND– □ ESJD– □
0 –0.005
+ 0.005 0 + 0.01 0
EPBBH
P.233
Straight
Tip stepped straight
SKD61 + Nitrided
◎ 0.01
SKH51
3
EPBB–H EPBB–M
＊＊
–0.01 –0.02
P.233
4mm (T4)
Short Ejector Sleeves
–
–
Stepped
Tip stepped straight
ECB (V dimension selection) ECBB (V dimension selection)
SKD61 + Nitrided
–0.01 –0.02
◎ 0.06 H7
30
P.267
E ＊＊ Web–only products
■ Material characteristics of ejector sleeves
CSV4T
CSVB4T
V × 3 fixed
P.429 P.427 P.429 P.427 P.429 P.427 P.429 P.427 P.429 P.427 P.429 P.427 P.429 P.427 P.429 P.427
P.429 P.427 P.429 P.427 P.429 P.427 P.429 P.427 P.429 P.427 P.429 P.427 P.429 P.427 P.429 P.427
+ 0.005 0 + 0.01 0 + 0.005 0 + 0.01 0 + 0.005 0 + 0.01 0 + 0.005 0 + 0.01 0
Die Steel SKD61 + Nitriding
High Speed Steel SKH51
NAK80 Precipitation type Prehardened steel
CSHKV4T CSHL4T CSHK4T
CSHKBV4T CSHB4T CSHKB4T CSHKBV CSHB CSHKB CSGBV4T CSGKBV4T CSGB4T CSGKB4T CSVB
V × 3 designated
4mm (T4)
Machining characteristics
M Material
1
3
5
V × 3 fixed
0 –0.005
V × 10 designated
◎ 0.005
(Poor)
(Good)
(Excellent)
SKH51
Surface: 900HV— Base material: 40— 45
CSV
V × 3 fixed
58—60
37—43
H Hardness HRC
CSHKV CSHL CSHK
V × 3 designated
1kgf/mm 2 = 9.81N/mm 2 1cal/cm ・ sec ・ °C = 418.4W/(m ・ K) 1kgf ・ m/cm 2 = 9.81J/cm 2
6/8mm (JIS)
Conversion formula
Abrasion resistance
5
4
2
V × 3 fixed
V × 10 designated
Ability to be mirror–finished Toughness
4 3 3
3 4 3
5 1 3
Machining Characteristics
Straight Core Sleeves
CSGLV4T CSGKV4T CSGL4T CSGK4T
V × 3 fixed
V × 3 designated
4mm (T4)
Corrosion resistance
V × 3 fixed
E Use these data only for reference because they are dependent on specific heat treatment and usage conditions.
[g/cm 3 ]
8.2
7.75
7.8
Density
V × 10 designated
0 –0.005
◎ 0.005
NAK80
Modulus of longitudinal elasticity [kgf/mm 2 ] Coefficient of thermal expansion [ × 10 –6 /K(°C)] Coefficient of thermal conductivity [cal/cm ・ sec ・ °C] Tensile strength [kgf/mm 2 ] Charpy impact values [kgf ・ m/cm 2 ]
22300
21000
20500
Physical Characteristics
CSGLV CSGKV
CSGBV
V × 3 fixed
10.1
10.8
12.5 0.1 128
CSGKBV
V × 3 designated
6/8mm (JIS)
0.051
0.061
CSGL CSGK
CSGB
V × 3 fixed
235
135
217
218
Mechanical Characteristics
CSGKB
V × 10 designated
2
4
2.2
Powered by FlippingBook