V-Belt Standard Datum Length per. ANSI/RMA IP-20 Table

Related Resources: belt design

Classical V-Belt Standard Datum Length for design per. ANSI/RMA IP-20

Standard Length Designation	Standard Datum lengths				Permissible Deviations from Std. Datum Length	Matching Limits for One Set
	Cross Section
	A, AX	B, BX	C, CX	D
26	27.3	…	…	…	+0.6, −0.6	0.15
31	32.3	…	…	…	+0.6, −0.6	0.15
35	36.3	36.8	…	…	+0.6, −0.6	0.15
38	39.3	39.8	…	…	+0.7, −0.7	0.15
42	43.3	43.8	…	…	+0.7, −0.7	0.15
46	47.3	47.8	…	…	+0.7, −0.7	0.15
51	52.3	52.8	53.9	…	+0.7, −0.7	0.15
55	56.3	56.8	…	…	+0.7, −0.7	0.15
60	61.3	61.8	62.9	…	+0.7, −0.7	0.15
68	69.3	69.8	70.9	…	+0.7, −0.7	0.30
75	75.3	76.8	77.9	…	+0.7, −0.7	0.30
80	81.3	…	…	…	+0.7, −0.7	0.30
81	…	82.8	83.9	…	+0.7, −0.7	0.30
85	86.3	86.8	87.9	…	+0.7, −0.7	0.30
90	91.3	91.8	92.9	…	+0.8, −0.8	0.30
96	97.3	…	98.9	…	+0.8, −0.8	0.30
97	…	98.8	…	…	+0.8, −0.8	0.30
105	106.3	106.8	107.9	…	+0.8, −0.8	0.30
112	113.3	113.8	114.9	…	+0.8, −0.8	0.30
120	121.3	121.8	122.9	123.3	+0.8, −0.8	0.30
128	129.3	129.8	130.9	131.3	+0.8, −0.8	0.30
144	…	145.8	146.9	147.3	+0.8, −0.8	0.30
158	…	159.8	160.9	161.3	+1.0, −1.0	0.45
173	…	174.8	175.9	176.3	+1.0, −1.0	0.45
180	…	181.8	182.9	183.3	+1.0, −1.0	0.45
195	…	196.8	197.9	198.3	+1.1, −1.1	0.45
210	…	211.8	212.9	213.3	+1.1, −1.1	0.45
240	…	240.3	240.9	240.8	+1.3, −1.3	0.45
270	…	270.3	270.9	270.8	+1.6, −1.6	0.60
300	…	300.3	300.0	300.8	+1.6, −1.6	0.60
330	…	…	330.9	330.8	+2.0, −2.0	0.60
360	…	…	380.9	360.8	+2.0, −2.0	0.60
540	…	…	…	540.8	+3.3, −3.3	0.90
390	…	…	390.9	390.8	+2.0, −2.0	0.75
420	…	…	420.9	420.8	+3.3, −3.3	0.75
480	…	…	…	480.8	+3.3, −3.3	0.75
600	…	…	…	600.8	+3.3, −3.3	0.90
660	…	…	…	660.8	+3.3, −3.3	0.90

All dimensions in inches.
Lengths are specified by "Standard Length Designation" and length, e.g. CX60