Automatic chain tensioners

Automatic chain tensioners take the slack of the chain by keeping the tension force constant. There is no need for operator setting when using. TO-AT-ET tighteners are made of the highest and most durable quality material. The maximum operating temperature is 65 degrees. (It is 100 degrees for the ET model.)

TO Series

	Newton
	min.	max.	chain pitch	A1	A2	A3	B	C	D
Type TO
TO-1 – 3/8”	130	250	3/8” x 7/32”	20	20	25	23	12,5	11
TO-1 – 1/2”	130	250	1/2” x 5/16”	20	20	25	23	12,5	11
TO-1 – 5/8”	130	250	5/8” x 3/8”	20	25	41,5	23	12,5	11
TO-2 – 5/8”	180	420	5/8” x 3/8”	22	25	41,5	28	15	12,5
TO-2 – 3/4”	180	420	3/4” x 7/16”	22	30	49	28	15	12,5
TO-3 – 1”	300	650	1” x 17 mm	25	45	78	33	17,5	14,5
TO-3 – 1 1/4”	300	650	1 1/4” x 3/4”	25	54	90	33	17,5	14,5