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www.grovegear.comQuadro Accessories
Technical Information
Mechanical
Warnings
and Cautions
Terms and Conditions
Lecentric Helical-Cast Iron
Lecentric Helical-Aluminum
Size
A AD
B
BA
D DB
E
F
G
H
J
LQ
56/140
LQ1
180/210/250
M
TAP
DEPTH
R767
8.504 7.874 8.268 3.524 5.118 0.472 7.087
5.886
0.984
0.551 2.047 3.721
N/A
1/2-13
1.26
R777
10.630 9.685 8.526 4.134 6.102 1.201 8.858 6.142
1.181
0.709 2.441 3.583
N/A
5/8-11
1.38
R787
11.417 8.661 12.205 5.512 7.087 3.366 8.465 10.236
1.181
0.709 N/A 1.890
2.415
3/4-10
1.42
R797
11.811 11.083 10.696 4.921 7.677 4.547 9.843 7.087
0.984
0.709 4.08
5.630
6.155
3/4-10
1.42
Size NC NP
NN
OA
U
0.000 / -0.001 UY V VF OUTPUT
KEY
TAP DEPTH
R767
5.512 4.724 M10 0.748 11.417 1.375
1.51 2.756 3.622 5/16 x 2.13
R777
6.299 5.512 M12 0.748 13.130 1.625
1.79 3.150 4.016 3/8 x 2.25
R787
7.48 6.496 M12 0.709 14.961 2.125
2.35 3.937 5.157 1/2 x 2.81
R797
7.48 6.496 M12 0.709 16.614 2.125
2.35 3.937 5.157 1/2 x 2.81
Size
A AD
B
BA
D DB
E
F
G
H
J
R767
8.504 7.874 8.268 3.524 12.737 13.442 13.976 N/A 5.118 1.969 7.087
5.886
0.984
0.551 2.047
R777
10.630 9.685 8.583 4.134 13.464 14.170 14.705 N/A 6.102 2.697 8.858 6.142
1.181
0.709 2.441
R787
11.417 8.661 12.205 5.512 N/A 19.606 19.606 19.606 7.087 1.398 8.465 10.236
1.181
0.709 N/A
R797
11.811 11.083 10.696 4.921 N/A 19.606 19.606 19.606 7.677 2.579 9.843 7.087
0.984
0.709 4.080
Size
LQ
56/140
LQ1
180/210/250
M
NC NP
NN
OA
U
0.000 / -0.001 UY V VF OUTPUT
KEY
TAP DEPTH
TAP DEPTH
R767
3.327
3.852 1/2-13 1.26 5.512 4.724 M10 0.748 11.417 1.375
1.51 2.756 3.622 5/16 x 2.13
R777
3.189
3.714 5/8-11 1.38 6.299 5.512 M12 0.748 13.130 1.625
1.79 3.150 4.016 3/8 x 2.25
R787
N/A 3.539 3/4-10 1.42 7.480 6.496 M12 0.709 14.961 2.125
2.35 3.937 5.157 1/2 x 2.81
R797
N/A 7.279 3/4-10 1.42 7.480 6.496 M12 0.709 16.614 2.125
2.35 3.937 5.157 1/2 x 2.81
Frame AJ AK BD BE BE1 Bore Dia. Keyway BF
56C
5.88 4.5 6.5 0.38 N/A 0.625 3/16 X3/32 0.41
140TC
5.88 4.5 6.5 0.38 N/A 0.875 3/16 X3/32 0.41
180TC
7.25 8.5 8.5 N/A 0.5 1.125 1/4 X 1/8 0.53
210TC
7.25 8.5 8.5 N/A 0.5 1.375 5/16 X 5/32 0.53
250TC
7.25 8.5 8.5 N/A 0.5 1.625 3/8 X 3/16 0.53
Motorized Quill Input, Double Reduction (B1 Base Mount Shown)
Motorized Quill Input, Triple Reduction (B1 Base Mount Shown)
Helical-Coaxial
Dimensions
Motorized • Base Mount • Cast Iron Case
C
56/140 180
210
250