Y8 Keyway Honing Units - Sunnen

NOTES: Standard Keyway Mandrels not suitable for
blind holes. Blind Hole Keyway Mandrels and Stones
are available on special order basis. Available 4 weeks
after receipt of order.
These honing units are designed to be used for honing
bores with keyways, splines, ports and other surface
interruptions.
Keyway Mandrels must be trued accurately to keep
the honing stone from hanging up in the keyway. Size
Truing Sleeve to a diameter between the desired finish
bore size and ,127 mm (.005") under.
In some cases, stones other than
the RECOMMENDED STONES
may hone faster or last longer.
For long or repetitive production
runs, it may be economical to
choose a stone slightly harder or
softer, coarser or finer. As a general
rule, hard materials require
soft stones; soft materials
require hard stones; rough holes
require hard stones.
☛Stone orders involving large quantities
or unusual requirements available
2 - 4 weeks after receipt of order.
*1st choice
**2nd choice.
Use if A55
does not cut.
}
Hard-----Soft
Hard---Soft
All Available Stones
Grit Size
70 80 100 150 220 280 320 400 500 600 1200
(Y32-A27)
(Y32-J25)
(Y32-J27)
Aluminum Oxide Stones (A) - 2 per box
Y32-A43
Y32-A45
Y32-A47
Y32-A49
(Y32-A411)
Y32-A53
Y32-A55
Y32-A57
Y32-A59
Y32-A63
Y32-A65
Y32-A67
(Y32-A69)
(Y32-A75)
Silicon Carbide Stones (J,C) - 2 per box
Y32-J43
Y32-J45
Y32-J47
(Y32-J49)
Recommended Stones for Y32 Mandrels
Y32-J53
Y32-J55
Y32-J57
(Y32-J59)
Y32-J63
Y32-J65
Y32-J67
(Y32-J69)
Low-Volume High-Volume
Material
Stone
to use
Approx. Ra
Surface Finish
µm µin
Stone
to use
Approx. Ra
Surface Finish
µm µin
Deburring: rough holes, all materials
Y32-A49 — — Y32-A49 — —
Fast removal: deburred, bored, ground, reamed holes
Aluminum
Y32-J57 1,38 55 Y32-DM87-XG48 1,25 50
Brass, Soft
Y32-J63 0,83 33 Y32-J63 0,83 33
Bronze
Y32-J57 1,38 55 Y32-J57 1,38 55
Carbide
— — — Y32-DM57-XG48 0,50 20
Cast Iron
Y32-J57 0,50 20 Y32-DM57-XG48 2,00 80
Ceramic
— — — Y32-DM57-XG48 1,00 40
Glass
— — — Y32-DM57-XG48 1,75 70
Steel, Soft
Y32-A57 0,65 25 Y32-NM57-XG48 1,25 50
Steel, Hardened* Y32-A55 0,45 18 Y32-NM57-XG48 1,00 40
Steel, Hardened** Y32-A63 0,30 12
—
— —
Steel, Very Hard Y32-J63 0,30 12
—
— —
Fine finishing: previously honed holes
Aluminum
Y32-J95 0,30 12 Y32-DM07-XG48 0,83 33
Brass, Soft
Y32-J83 0,40 16 Y32-J83 0,40 16
Bronze
Y32-J95 0,30 12 Y32-J95 0,30 12
Carbide
— — — Y32-DM07-XG48 0,08 3
Cast Iron
Y32-J95 0,13 5 Y32-DM07-XG48 0,13 5
Ceramic
— — — Y32-DM07-XG48 0,38 15
Glass
— — — Y32-DM07-XG48 0,38 15
Steel, Soft
Y32-J95 0,10 4 Y32-NM07-XG48 0,40 16
Steel, Hardened Y32-J83 0,13 5 Y32-NM07-XG48 0,18 7
Y32-J83
Y32-J85
Y32-J87
(Y32-J89)
Y32-J93
Y32-J95
Y32-J97
(Y32-J99)
(Y32-CO5)
Automatic Size Control Probes
25,15mm - 38,00mm (.990"-1.500")
For use on machines with Automatic
Size Control units. Select the appropriate
Size Control Probe based on workpiece
finish diameter. See page 98 for
complete list of A.S.C. Sensing Tips.
Sensing Nominal Diameter Range
Tip
Part No.
Diameter
mm in
Low
mm in
High
mm in
ASC-1000 25,40 1 25,15 .990 25,63 1.010
ASC-1016 26 1-1/64 25,68 1.011 26,16 1.030
ASC-51* — — 26,00 1.000 32,00 1.250
ASC-52* — — 32,00 1.250 38,00 1.500
* Requires the use of ASC-50 setting fixture. Specify
ASC-50M for metric applications.
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