V Idler Pulley and Sheave Sizes

Part Number	A	B	C	D	E	Belt size
Idler A-sec x 2" dia *	2.00"	1.36"	.37"	.62"	32°	3L & A
Idler A-sec x 2.5" dia	2.50"	1.75"	.51"	.74"	32°	A
Idler A-sec x 2.87" dia	2.87"	1.75"	.49"	.74"	32°	A
Idler A-sec x 3" dia	3.00"	1.96"	.49"	.70"	32°	A
Idler A-sec x 3.5" dia	3.48"	2.58"	.50"	.68"	34°	A
Idler A-sec x 3.56" dia	3.56"	2.50"	.58"	.78"	34°	A
Idler A-sec x 4" dia	4.00"	2.62"	.50"	.87"	34°	A
Idler B-sec x 3" dia	3.00"	1.79"	.54"	.81"	34°	B
Idler B-sec x 3.5" dia	3.47"	2.26"	.64"	.81"	34°	B
Idler B-sec x 4" dia	4.00"	2.79"	.64"	.81"	34°	B
Idler B-sec x 5" dia	5.00"	3.75"	.64"	.81"	34°	B
Idler B-sec x 6" dia	6.00"	4.79"	.64"	.87"	34°	B
Idler C-sec x 5" dia	5.00"	3.00"	.88"	1.12"	36°	B & C
Idler C-sec x 6" dia	6.00"	4.00"	.88"	1.12"	36°	B & C
Idler C-sec x 7" dia	7.00"	5.00"	.93"	1.15"	34°	B & C

*2" diameter available only with 3/8" (9.5 mm) bolt hole.

Maximum bore diameter without an adapter is 17mm (0.669")