QDC

Standard Keyseats

Bore Range	Keyseat
1/2″ – 9/16″	1/8″ x 1/16″
5/8 – 7/8	3/16 x 3/32
15/16 – 1 1/4	1/4 x 1/8
1 5/16 – 1 3/8	5/16 x 5/32
1 7/16 – 1 3/4	3/8 x 3/16
1 13/16 – 2 1/4	1/2 x 1/4
2 5/16 – 2 3/4	5/8 x 5/16
2 13/16 – 3 1/4	3/4 x 3/8
3 3/8 – 3 3/4	7/8 x 7/16
3 7/8 – 4 1/2	1 x 1/2

1 3/8″ Bore Bushing also available with 3/8×3/16″ Keyway.
　

1 GROOVE, F = 1 1/4″
Part No.	Bushing	Bore Range	Type	Datum	O.D.	E	L	M	Wt.Less Bushing
1C70SF	SF	1/2″ -2 15/16″	D-Sol.	7.0″	7.40″	27/32″	2 1/16″	1/32″	10
1C75SF	SF	1/2 -2 15/16	D-Web	7.50	7.90	27/32	2 1/16	1/32	12
1C80SF	SF	1/2 -2 15/16	D-Web	8.00	8.40	27/32	2 1/16	1/32	13
1C85SF	SF	1/2 -2 15/16	D-Web	8.50	8.90	27/32	2 1/16	1/32	14
1C90SF	SF	1/2 -2 15/16	D-Arm	9.00	9.40	27/32	2 1/16	1/32	15
1C95SF	SF	1/2 -2 15/16	D-Arm	9.50	9.90	27/32	2 1/16	1/32	16
1C100SF	SF	1/2 -2 15/16	D-Arm	10.00	10.40	27/32	2 1/16	1/32	17
1C105SF	SF	1/2 -2 15/16	D-Arm	10.50	10.90	27/32	2 1/16	1/32	18
1C110SF	SF	1/2 -2 15/16	D-Arm	11.00	11.40	27/32	2 1/16	1/32	19
1C120SF	SF	1/2 -2 15/16	D-Arm	12.00	12.40	27/32	2 1/16	1/32	20
1C130SF	SF	1/2 -2 15/16	D-Arm	13.00	13.40	27/32	2 1/16	1/32	22
1C140SF	SF	1/2 -2 15/16	D-Arm	14.00	14.40	27/32	2 1/16	1/32	24
1C160SF	SF	1/2 -2 15/16	D-Arm	16.00	16.40	27/32	2 1/16	1/32	26
1C180SF	SF	1/2 -2 15/16	D-Arm	18.00	18.40	27/32	2 1/16	1/32	30
1C200SF	SF	1/2 -2 15/16	D-Arm	20.00	20.40	27/32	2 1/16	1/32	35
1C240SF	SF	1/2 -2 15/16	D-Arm	24.00	24.40	27/32	2 1/16	1/32	41

2 GROOVES, F = 2 1/4″
Part No.	Bushing	Bore Range	Type	Datum	O.D.	E	L	M	Wt.Less Bushing
2C70SF	SF	1/2- 2 15/16	D-Sol.	7.00	7.40	3/32	2 1/16	9/32	15
2C75SF	SF	1/2- 2 15/16	D-Sol.	7.50	7.90	3/32	2 1/16	9/32	17
2C80SF	SF	1/2- 2 15/16	D-Sol.	8.00	8.40	3/32	2 1/16	9/32	18
2C85SF	SF	1/2- 2 15/16	D-Web	8.50	8.90	3/32	2 1/16	9/32	19
2C90SF	SF	1/2- 2 15/16	D-Web	9.00	9.40	3/32	2 1/16	9/32	20
2C95SF	SF	1/2- 2 15/16	D-Web	9.50	9.90	3/32	2 1/16	9/32	21
2C100SF	SF	1/2- 2 15/16	D-Arm	10.00	10.40	3/32	2 1/16	9/32	22
2C105SF	SF	1/2- 2 15/16	D-Arm	10.50	10.90	3/32	2 1/16	9/32	23
2C110SF	SF	1/2- 2 15/16	D-Arm	11.00	11.40	3/32	2 1/16	9/32	24
2C120SF	SF	1/2- 2 15/16	D-Arm	12.00	12.40	11/32	2 1/16	17/32	25
2C130SF	SF	1/2- 2 15/16	D-Arm	13.00	13.40	11/32	2 1/16	17/32	28
2C140SF	SF	1/2- 2 15/16	D-Arm	14.00	14.40	11/32	2 1/16	17/32	31
2C160SF	SF	1/2- 2 15/16	D-Arm	16.00	16.40	11/32	2 1/16	17/32	36
2C180SF	SF	1/2- 2 15/16	D-Arm	18.00	18.40	11/32	2 1/16	17/32	39
2C200SF	SF	1/2- 2 15/16	D-Arm	20.00	20.40	11/32	2 1/16	17/32	48
2C240SF	SF	1/2- 2 15/16	D-Arm	24.00	24.40	11/32	2 1/16	17/32	60
2C300SF	F	1-4	C-Arm	30.00	30.40	1 7/32	3 3/4	9/32	85

3 GROOVES, F = 3 1/4″
Part No.	Bushing	Bore Range	Type	Datum	O.D.	E	L	M	Wt.Less Bushing
3C50SD	SD	1/2″- 2″	A-Sol.	5.0″	5.40″	19/32″	1 13/16″	27/32″	10
3C55SD	SD	1/2-2	A-Sol.	5.50	5.90	19/32	1 13/16	27/32	12
3C60SF	SF	1/2- 2 15/16	D-Sol.	6.00	6.40	23/32	2 1/16	1 29/32	15
3C70SF	SF	1/2- 2 15/16	A-Sol.	7.00	7.40	13/32	2 1/16	25/32	18
3C75SF	SF	1/2- 2 15/16	A-Sol.	7.50	7.90	13/32	2 1/16	25/32	20
3C80E	E	7/8- 3 1/2	B-Sol.	8.00	8.40	17/32	2 3/4	1/32	26
3C85E	E	7/8- 3 1/2	B-Sol.	8.50	8.90	17/32	2 3/4	1/32	29
3C90E	E	7/8- 3 1/2	A-Sol.	9.00	9.40	15/32	2 3/4	1/32	32
3C95E	E	7/8- 3 1/2	A-Web	9.50	9.90	15/32	2 3/4	1/32	34
3C100E	E	7/8- 3 1/2	A-Web	10.00	10.40	15/32	2 3/4	1/32	36
3C105E	E	7/8- 3 1/2	A-Arm	10.50	10.90	15/32	2 3/4	1/32	38
3C110E	E	7/8- 3 1/2	A-Arm	11.00	11.40	15/32	2 3/4	1/32	40
3C120E	E	7/8- 3 1/2	A-Arm	12.00	12.40	15/32	2 3/4	1/32	43
3C130E	E	7/8- 3 1/2	A-Arm	13.00	13.40	15/32	2 3/4	1/32	45
3C140E	E	7/8- 3 1/2	A-Arm	14.00	14.40	15/32	2 3/4	1/32	51
3C160E	E	7/8- 3 1/2	A-Arm	16.00	16.40	15/32	2 3/4	1/32	59
3C180E	E	7/8- 3 1/2	A-Arm	18.00	18.40	15/32	2 3/4	1/32	65
3C200E	E	7/8- 3 1/2	D-Arm	20.00	20.40	7/32	2 3/4	23/32	70
3C240E	E	7/8- 3 1/2	D-Arm	24.00	24.40	7/32	2 3/4	23/32	80
3C270F	F	1 – 4	D-Arm	27.00	27.40	21/32	3 3/4	5/32	105
3C300F	F	1 – 4	D-Arm	30.00	30.40	21/32	3 3/4	5/32	120
3C360F	F	1 – 4	D-Arm	36.00	36.40	21/32	3 3/4	5/32	140
3C440F	F	1 – 4	D-Arm	44.00	44.40	21/32	3 3/4	5/32	170
3C500F	F	1 – 4	D-Arm	50.00	50.40	21/32	3 3/4	5/32	190

4 GROOVES, F = 4 1/4″
Part No.	Bushing	Bore Range	Type	Datum	O.D.	E	L	M	Wt.Less Bushing
4C50SD	SD	1/2-2	A-Sol.	5.00	5.40	27/32	1 13/16	1 19/32	12
4C55SD	SD	1/2-2	A-Sol.	5.50	5.90	27/32	1 13/16	1 19/32	14
4C60SF	SF	1/2- 2 15/16	A-Sol.	6.00	6.40	21/32	2 1/16	1 17/32	17
4C70SF	SF	1/2- 2 15/16	A-Sol.	7.00	7.40	21/32	2 1/16	1 17/32	21
4C75SF	SF	1/2- 2 15/16	A-Sol.	7.50	7.90	21/32	2 1/16	1 17/32	25
4C80E	E	7/8- 3 1/2	A-Sol.	8.00	8.40	25/32	2 3/4	23/32	30
4C85E	E	7/8- 3 1/2	A-Sol.	8.50	8.90	25/32	2 3/4	23/32	33
4C90E	E	7/8- 3 1/2	A-Sol.	9.00	9.40	25/32	2 3/4	23/32	35
4C95E	E	7/8- 3 1/2	A-Web	9.50	9.90	25/32	2 3/4	23/32	38
4C100E	E	7/8- 3 1/2	A-Web	10.00	10.40	25/32	2 3/4	23/32	40
4C105E	E	7/8- 3 1/2	A-Web	10.50	10.90	25/32	2 3/4	23/32	43
4C110E	E	7/8- 3 1/2	A-Web	11.00	11.40	25/32	2 3/4	23/32	46
4C120E	E	7/8- 3 1/2	A-Arm	12.00	12.40	25/32	2 3/4	23/32	50
4C130E	E	7/8- 3 1/2	A-Arm	13.00	13.40	25/32	2 3/4	23/32	54
4C140E	E	7/8- 3 1/2	A-Arm	14.00	14.40	25/32	2 3/4	23/32	59
4C160E	E	7/8- 3 1/2	A-Arm	16.00	16.40	25/32	2 3/4	23/32	65
4C180E	E	7/8- 3 1/2	A-Arm	18.00	18.40	25/32	2 3/4	23/32	73
4C200E	E	7/8- 3 1/2	A-Arm	20.00	20.40	9/32	2 3/4	1 7/32	82
4C240F	F	1-4	D-Arm	24.00	24.40	3/32	3 3/4	19/32	105
4C270F	F	1-4	D-Arm	27.00	27.40	3/32	3 3/4	19/32	125
4C300F	F	1-4	D-Arm	30.00	30.40	3/32	3 3/4	19/32	142
4C360F	F	1-4	D-Arm	36.00	36.40	3/32	3 3/4	19/32	172
4C440J	J	1 1/2- 4 1/2	C-Arm	44.00	44.40	0	4 5/8	3/8	225
4C500J	J	1 1/2- 4 1/2	C-Arm	50.00	50.40	0	4 5/8	3/8	260

5 GROOVES, F = 5 1/4″
Part No.	Bushing	Bore Range	Type	Datum	O.D.	E	L	M	Wt.Less Bushing
5C60SF	SF	1/2 – 2 15/16	A-Sol.	6.00	6.40	1 1/32	2 1/16	2 5/32	21
5C70SF	SF	1/2 – 2 15/16	A-Sol.	7.00	7.40	1 1/32	2 1/16	2 5/32	26
5C75SF	SF	1/2 – 2 15/16	A-Sol.	7.50	7.90	1 1/32	2 1/16	2 5/32	28
5C80E	E	7/8 – 3 1/2	A-Sol.	8.00	8.40	1 5/32	2 3/4	1 11/32	33
5C85E	E	7/8 – 3 1/2	A-Sol.	8.50	8.90	1 5/32	2 3/4	1 11/32	37
5C90E	E	7/8 – 3 1/2	A-Sol.	9.00	9.40	1 5/32	2 3/4	1 11/32	40
5C95E	E	7/8 – 3 1/2	A-Web	9.50	9.90	1 5/32	2 3/4	1 11/32	42
5C100E	E	7/8 – 3 1/2	A-Web	10.00	10.40	1 5/32	2 3/4	1 11/32	45
5C105E	E	7/8 – 3 1/2	A-Web	10.50	10.90	1 5/32	2 3/4	1 11/32	47
5C110E	E	7/8 – 3 1/2	A-Web	11.00	11.40	1 5/32	2 3/4	1 11/32	50
5C120E	E	7/8 – 3 1/2	A-Web	12.00	12.40	1 5/32	2 3/4	1 11/32	53
5C130E	E	7/8 – 3 1/2	A-Arm	13.00	13.40	1 5/32	2 3/4	1 11/32	58
5C140E	E	7/8 – 3 1/2	A-Arm	14.00	14.40	1 5/32	2 3/4	1 11/32	64
5C160E	E	7/8 – 3 1/2	A-Arm	16.00	16.40	1 5/32	2 3/4	1 11/32	73
5C180E	E	7/8 – 3 1/2	A-Arm	18.00	18.40	1 5/32	2 3/4	1 11/32	85
5C200F	F	1-4	D-Arm	20.00	20.40	3/32	3 3/4	1 19/32	98
5C240F	F	1-4	D-Arm	24.00	24.40	3/32	3 3/4	1 19/32	119
5C270F	F	1-4	D-Arm	27.00	27.40	3/32	3 3/4	1 19/32	153
5C300F	F	1-4	D-Arm	30.00	30.40	3/32	3 3/4	1 19/32	174
5C360J	J	1 1/2 – 4 1/2	A-Arm	36.00	36.40	1/16	4 5/8	9/16	206
5C440J	J	1 1/2 – 4 1/2	A-Arm	44.00	44.40	1/16	4 5/8	9/16	254
5C500J	J	1 1/2 – 4 1/2	A-Arm	50.00	50.40	1/16	4 5/8	9/16	274

6 GROOVES, F = 6 1/4″
Part No.	Bushing	Bore Range	Type	Datum	O.D.	E	L	M	Wt.Less Bushing
6C60SF	SF	1/2″ – 2 15/16″	A-Sol.	6.0″	6.40″	1 1/32″	2 1/16″	3 5/32″	20
6C70SF	SF	1/2 – 2 15/16	A-Sol.	7.00	7.40	1 1/32	2 1/16	3 5/32	26
6C75SF	SF	1/2 – 2 15/16	A-Sol.	7.50	7.90	1 1/32	2 1/16	3 5/32	29
6C80E	E	7/8 – 3 1/2	A-Sol.	8.00	8.40	1 5/32	2 3/4	2 11/32	36
6C85E	E	7/8 – 3 1/2	A-Sol.	8.50	8.90	1 5/32	2 3/4	2 11/32	39
6C90F	F	1-4	A-Sol.	9.00	9.40	1 1/32	3 3/4	1 15/32	51
6C95F	F	1-4	A-Sol.	9.50	9.90	1 1/32	3 3/4	1 15/32	55
6C100F	F	1-4	A-Sol.	10.00	10.40	1 1/32	3 3/4	1 15/32	59
6C105F	F	1-4	A-Web	10.50	10.90	1 1/32	3 3/4	1 15/32	62
6C110F	F	1-4	A-Web	11.00	11.40	1 1/32	3 3/4	1 15/32	66
6C120F	F	1-4	A-Web	12.00	12.40	1 1/32	3 3/4	1 15/32	70
6C130F	F	1-4	A-Arm	13.00	13.40	1 1/32	3 3/4	1 15/32	74
6C140F	F	1-4	A-Arm	14.00	14.40	1 1/32	3 3/4	1 15/32	80
6C160F	F	1-4	A-Arm	16.00	16.40	1 1/32	3 3/4	1 15/32	89
6C180F	F	1-4	A-Arm	18.00	18.40	1 1/32	3 3/4	1 15/32	102
6C200F	F	1-4	A-Arm	20.00	20.40	17/32	3 3/4	1 31/32	112
6C240F	F	1-4	A-Arm	24.00	24.40	17/32	3 3/4	1 31/32	131
6C270J	J	1 1/2 – 4 1/2	A-Arm	27.00	27.40	1/16	4 5/8	1 9/16	160
6C300J	J	1 1/2 – 4 1/2	A-Arm	30.00	30.40	1/16	4 5/8	1 9/16	190
6C360J	J	1 1/2 – 4 1/2	A-Arm	36.00	36.40	1/16	4 5/8	1 9/16	232
6C440J	J	1 1/2 – 4 1/2	A-Arm	44.00	44.40	1/16	4 5/8	1 9/16	299
6C500M	M	2 – 5 1/2	B-Arm	50.00	50.40	7/32	6 3/4	23/32	320

8 GROOVES, F = 8 1/4″
Part No.	Bushing	Bore Range	Type	Datum	O.D.	E	L	M	Wt.Less Bushing
8C80E	E	7/8 – 3 1/2	A-Sol.	8.00	8.40	2 1/32	2 3/4	3 15/32	43
8C85E	E	7/8 – 3 1/2	A-Sol.	8.50	8.90	2 1/32	2 3/4	3 15/32	48
8C90F	F	1-4	A-Sol.	9.00	9.40	1 29/32	3 3/4	2 19/32	60
8C95F	F	1-4	A-Sol.	9.50	9.90	1 29/32	3 3/4	2 19/32	65
8C100F	F	1-4	A-Sol.	10.00	10.40	1 29/32	3 3/4	2 19/32	69
8C105F	F	1-4	A-Web	10.50	10.90	1 29/32	3 3/4	2 19/32	73
8C110F	F	1-4	A-Web	11.00	11.40	1 29/32	3 3/4	2 19/32	78
8C120F	F	1-4	A-Arm	12.00	12.40	1 29/32	3 3/4	2 19/32	83
8C130F	F	1-4	A-Arm	13.00	13.40	1 29/32	3 3/4	2 19/32	89
8C140F	F	1-4	A-Arm	14.00	14.40	1 29/32	3 3/4	2 19/32	97
8C160F	F	1-4	A-Arm	16.00	16.40	1 29/32	3 3/4	2 19/32	113
8C180F	F	1-4	A-Arm	18.00	18.40	1 29/32	3 3/4	2 19/32	131
8C200J	J	1 1/2 – 4 1/2	A-Arm	20.00	20.40	1/16	4 5/8	3 9/16	152
8C240J	J	1 1/2 – 4 1/2	A-Arm	24.00	24.40	1/16	4 5/8	3 9/16	185
8C270J	J	1 1/2 – 4 1/2	A-Arm	27.00	27.40	1/16	4 5/8	3 9/16	208
8C300J	J	1 1/2 – 4 1/2	A-Arm	30.00	30.40	1/16	4 5/8	3 9/16	230
8C360M	M	2 – 5 1/2	A-Arm	36.00	36.40	9/32	6 3/4	1 7/32	306
8C440M	M	2 – 5 1/2	A-Arm	44.00	44.40	9/32	6 3/4	1 7/32	400
8C500M	M	2 – 5 1/2	A-Arm	50.00	50.40	9/32	6 3/4	1 7/32	475

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