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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
AD AH AJn
AKn
BA BB
BFn
C
D
DB
GA
56/140
180
210
250
R767
7.874
2.756
6.496
5.118
7.874 0.138
0.433
12.737
13.442
13.976
N/A
3.937
1.969
0.433
R777
9.685
3.150
8.465
7.087
9.843 0.157
0.551
13.465
14.170 14.705
N/A
4.724
2.697
0.512
R787
8.661
3.937 10.433 9.055 11.811 0.157
0.551
N/A 19.606 19.606 19.606
7.087
1.398
0.827
R797
11.083 3.937 10.433 9.055 11.811 0.157
0.551
N/A 19.606 19.606 19.606
5.512
2.579
0.827
Size
AD AH AJn
AKn
BA BB
BFn
C
D
DB
GA
56/140
180
210
250
R767
7.874
2.756
6.496
5.118
7.847 0.138
0.433
13.130
N/A
N/A
N/A
3.937
0.472
0.433
R777
9.685
3.150
8.465
7.087
9.843 0.157
0.551
13.859
N/A
N/A
N/A
4.724
1.201
0.512
R787
8.661
3.937 10.433 9.055 11.811 0.157
0.551
17.638
18.343 18.878
N/A
7.087
3.366
0.827
R797
11.083 3.937 10.433 9.055 11.811 0.157
0.551
17.638
18.343 18.878
N/A
5.512
4.547
0.827
Size
LQ
LQ1
M
OA
U
0.000 / -0.001 UY V OUTPUT
KEY
56C/140TC 180/210/250 TAP DEPTH
R767
9.981
10.506 1/2-13 1.26 10.236
1.375
1.51 2.756 5/16 x 2.13
R777
10.315
10.840 5/8-11 1.38 11.752
1.625
1.79 3.150 3/8 x 2.25
R787
N/A
15.350 3/4-10 1.42 14.961
2.125
2.35 3.937 1/2 x 2.81
R797
N/A
15.350 3/4-10 1.42 14.429
2.125
2.35 3.937 1/2 x 2.81
Size
LQ
LQ1
M
OA
U
0.000 / -0.001 UY V OUTPUT
KEY
56C/140TC 180/210/250 TAP DEPTH
R767
10.374
N/A 1/2-13 1.26 10.236
1.375
1.51 2.756 5/16 x 2.13
R777
10.709
N/A 5/8-11 1.38 11.752
1.625
1.79 3.150 3/8 x 2.25
R787
13.701
14.226 3/4-10 1.42 14.961
2.125
2.35 3.937 1/2 x 2.81
R797
13.701
14.226 3/4-10 1.42 14.429
2.125
2.35 3.937 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 X 3/32 0.41
140TC
5.88 4.5 6.5 0.38 N/A 0.875 3/16 X 3/32 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
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 X 3/32 0.41
140TC
5.88 4.5 6.5 0.38 N/A 0.875 3/16 X 3/32 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 (F1 Flange Mount Shown)
Motorized Quill Input, Triple Reduction (F1 Flange Mount Shown)
Helical-Coaxial
Dimensions
Motorized • Flange Mount • Cast Iron Case
C
LQ
AH
GA
AKn BA
BB
BE
DB
U
V
LQ1
BE1
M
TAP
OA
AD
AJn
DIA
BFn
(4)HOLES
D
UY
SQUARE
OUTPUT
KEY
(4) HOLES
BF
BD
BORE
AJ
AK