Silent Chains (Inverted Tooth Chains)

THC brand Silent Chains (or Inverted Tooth Chains) are manufactured to GB10855 (equivalent to SC Series Silent Chains to ANSI B29.2M), which are the most commonly used Silent Chains for industrial applications. Products are available in 3/8, 1/2, 5/8, 3/4, 1, 1 1/4 and 1 1/2 inches pitches. Silent chains of 3/16" pitch in stainless steel (AISI 304) are also available on a made-to-order basis.

Silent Chains (Flank Contact)

ANSI Chain #	THC Chain #	P	b1	d2	L	Lc	h1	h2	Guide	# of Plates	U. T. S. (kN)	Wt. (kg/m)
SC3	CL06	9.525	13.50	3.96	18.50	20.00	5.30	10.10	Side	9	10.00	0.60
			16.50		21.50	23.00				11	12.50	0.73
			19.50		24.50	26.00				13	15.00	0.85
			22.50		27.50	29.00				15	17.50	1.00
			28.50		33.50	35.00			Center	19	22.50	1.26
			34.50		39.50	41.00				23	27.50	1.53
			40.50		45.50	47.00				27	32.50	1.79
			46.50		51.50	53.00				31	37.50	2.06
			52.50		57.50	59.00				35	42.50	2.33
SC4	CL08	12.70	19.50	5.08	24.50	26.00	7.00	13.40	Side	13	23.40	1.15
			22.50		27.50	29.00				15	27.40	1.33
			25.50		30.50	32.00				17	31.30	1.50
			28.50		33.50	35.00			Center	19	35.20	1.68
			34.50		39.50	41.00				23	43.00	2.04
			40.50		45.50	47.00				27	50.80	2.39
			46.50		51.50	53.00				31	58.60	2.74
			52.50		57.50	59.00				35	66.40	3.10
			58.50		63.50	65.00				39	74.30	3.45
			64.50		69.50	71.00				43	82.10	3.81
			70.50		75.50	77.00				47	89.90	4.16
SC5	CL10	15.875	30.00	5.94	37.00	39.00	8.70	16.70	Center	15	45.60	2.21
			38.00		45.00	47.00				19	58.60	2.80
			46.00		53.00	55.00				23	71.70	3.39
			54.00		61.00	63.00				27	84.70	3.99
			62.00		69.00	71.00				31	97.70	4.58
			70.00		77.00	79.00				35	111.00	5.17
			78.00		85.00	87.00				39	124.00	5.76
SC6	CL12	19.05	38.00	6.90	45.00	47.00	10.50	20.10	Center	19	70.40	3.37
			46.00		53.00	55.00				23	86.00	4.08
			54.00		61.00	63.00				27	102.00	4.78
			62.00		69.00	71.00				31	117.00	5.50
			70.00		77.00	79.00				35	133.00	6.20
			78.00		85.00	87.00				39	149.00	6.91
			86.00		93.00	95.00				43	164.00	7.62
			94.00		101.00	103.00				47	180.00	8.33
SC8	CL16	25.40	45.00	8.90	53.00	56.00	14.00	26.70	Center	15	111.00	5.31
			51.00		59.00	62.00				17	125.00	6.02
			57.00		65.00	68.00				19	141.00	6.73
			69.00		77.00	80.00				23	172.00	8.15
			81.00		89.00	92.00				27	203.00	9.57
			93.00		101.00	104.00				31	235.00	10.98
			105.00		113.00	116.00				35	266.00	12.41
			117.00		125.00	128.00				39	297.00	13.82
SC10	CL20	31.75	57.00	10.84	67.00	70.00	17.50	33.40	Center	19	165.00	8.42
			69.00		79.00	82.00				23	201.00	10.19
			81.00		91.00	94.00				27	237.00	11.96
			93.00		103.00	106.00				31	273.00	13.73
			105.00		115.00	118.00				35	310.00	15.50
			117.00		127.00	130.00				39	346.00	17.27
SC12	CL24	38.10	69.00		81.00	84.00	21.00	40.10	Center	23	241.00	12.22
			81.00		93.00	96.00				27	385.00	14.35
			93.00		105.00	108.00				31	328.00	16.48
			105.00		117.00	120.00				35	371.00	18.61
			117.00		129.00	132.00				39	415.00	20.73
			129.00		141.00	144.00				43	458.00	22.86
			141.00		153.00	156.00				47	502.00	24.99

Silent Chains (Croch Contact)

THC Chain #	P	b1	d2	L	Lc	h1	h2	Guide	# of Plates	U. T. S. (kN)	Wt. (kg/m)
C4-120	12.70	19.50	5.08	24.50	26.00	6.62	12.10	Center	13	20.00	1.20
C4-123		22.50		27.50	29.00				15	23.00	1.37
C4-129		28.50		33.50	35.00				19	28.50	1.72
C4-132		31.50		36.50	38.00				21	31.50	1.89
C4-138		37.50		42.50	44.00				25	38.00	2.22
C4-150		49.50		54.50	56.00				33	50.00	2.90
C4-320		19.50		24.50	26.00			Side	13	20.00	1.21
C4-323		22.50		27.50	29.00				15	23.00	1.38
C4-329		28.50		33.50	35.00				19	28.50	1.73
C4-332		31.50		36.50	38.00				21	31.50	1.90
C4-338		37.50		42.50	44.00				25	38.00	2.23

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