What is your MOQ for custom gearboxes?

For OEM custom designs, MOQ is 10-50 units. For standard gearboxes, no MOQ – sample orders accepted.

What is your lead time?

Sample: 15-20 days. Bulk order: 30-45 days depending on quantity.

What is the minimum order quantity (MOQ) for custom OEM gearboxes?

Our standard production MOQ starts from 10 units for custom OEM gearboxes, which is highly flexible for industrial and agricultural machinery distributors.

How does Raydafon ensure a 30% longer life and 20% energy savings?

Through advanced gear grinding processes, ISO 9001 certified precision manufacturing, and optimized lubricating seal designs, our transmission gearboxes minimize friction and heat, extending lifespan by 30%.

Do you provide gearboxes compatible with global brands like John Deere or specialized hydraulic systems?

Yes, we specialize in high-interchangeability transmission components. Our engineering team can manufacture gearboxes and hydraulic spindles that perfectly match international agricultural machinery and industrial drive system specifications.

Motorcycle Chains

Raydafon Group's Motorcycle Chains deliver unmatched durability and smooth performance for riders. Made from premium steel with advanced technology, they ensure reliability on any terrain. Perfect for motorcycle enthusiasts, enhancing safety and confidence on the road. Experience superior quality and peace of mind with Raydafon Group.

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Product Description

Raydafon Group offers a comprehensive range of motorcycle chains, including engine timing chains and drive chains (available in O-ring and X-ring designs). Our chains are engineered with ISO heat‑treated plates and specially hardened pins to deliver high fatigue strength and superior wear resistance. Whether for racing or highway use, our sealing ring chains are manufactured from premium materials with advanced lubrication and processing technology to meet the demands of various displacements and riding conditions.

Engine Chains – Specifications

ISO Chain No.	Chain No.	Pitch	Bush diam.	Width inner	Pin diam.	Pin length	Inner plate depth	Plate thick.	Tensile min	Avg. tensile	Weight per m
		P mm	d1 max mm	b1 min mm	d2 max mm	L max mm	h2 max mm	t/T max mm	Q min kN/lbf	Q0 kN	q kg/m
		-	25	6.350	3.30	3.18	2.31	7.90	6.00	0.80	3.5/795	4.6	0.15
25H	25H	6.350	3.30	3.18	2.31	8.90	6.00	1.04	4.8/1091	5.5	0.17
-	25H(E)	6.350	3.30	3.18	2.31	8.90	6.00	1.04	5.8/1304	6.4	0.18
-	25HF2	6.350	3.30	3.18	2.31	9.10	5.80	1.20/1.10	5.8/1304	6.4	0.19
-	25SHF1	6.350	3.30	3.18	2.01	8.95	5.90	1.04	4.8/1091	5.5	0.19
219H	219H	7.774	4.59	5.00	3.01	11.90	7.40	1.20/1.04	7.3/1641	8.0	0.28
-	*C219H	7.774	4.59	5.00	3.01	11.90	7.40	1.20/1.04	7.3/1641	8.0	0.33
-	219HT	7.774	4.59	4.60	3.01	12.15	7.55	1.40/1.30	6.6/1483	7.2	0.33
-	219HF2	7.774	4.59	4.50	3.01	11.90	7.40	1.40/1.30	6.6/1483	7.2	0.31
-	219HF1	7.785	4.60	4.50	3.28	13.00	7.00	2.00/1.40	9.0/2024	9.8	0.37
270H	270H	8.500	5.00	4.75	3.28	13.15	8.45	1.80/1.40	10.8/2428	11.9	0.43
* Straight side plates

Engine Silent Chains

Chain No.	Pitch	Chain width	Pin diam.	Pin length	Hole to tooth	Plate depth	Plate thick.	Guide type	Plates	Tensile min	Avg. tensile	Weight
	P mm	b max mm	d2 min mm	L max mm	h1 mm	h2 max mm	t/T mm		n	Q min kN/lbf	Q0 kN	q kg/m
	CL04-2×3	6.35	4.35	2.50	6.05	3.94	6.80	1.04/0.75	Outside	5(2×3)	5.19/1179	5.4	0.22
CL04-3×4	6.35	6.35	2.50	8.20	3.90	6.72	1.04/0.75	Outside	7(3×4)	8.82/2004	9.2	0.28
CL04-4×5	6.35	9.40	2.50	10.90	3.90	6.72	1.04	Outside	9(4×5)	11.76/2672	12.3	0.35

Drive Chains – Roller Type (ISO 420, 428, 520, 525, 530, 630)

ISO Chain No.	Chain No.	Pitch	Roller diam.	Width inner	Pin diam.	Pin length		Inner plate depth	Plate thick.	Tensile min	Avg. tensile	Weight
		P mm	d1 max mm	b1 min mm	d2 max mm	L max mm	Lc max mm	h2 max mm	t/T mm	Q min kN/lbf	Q0 kN	q kg/m
		-	*T3F	9.525	6.00	9.50	4.50	18.60	20.00	9.30	1.85/1.50	11.80/2653	13.6	0.61
420	420	12.700	7.77	6.25	3.96	14.70	16.10	12.00	1.50	16.00/3597	17.6	0.55
-	420F3	12.700	7.77	6.40	3.97	15.00	16.60	11.80	1.60/1.45	16.00/3597	17.6	0.64
-	420HF1	12.700	7.77	6.25	3.96	17.00	18.40	12.00	2.03	16.00/3597	17.6	0.76
-	420HT	12.700	7.77	6.25	3.96	17.00	-	12.00	2.03	21.40/4811	23.5	0.76
428	428	12.700	8.51	7.75	4.45	16.70	18.20	11.80	1.60	17.80/4002	19.6	0.70
-	428F1	12.700	8.51	7.94	4.50	16.70	18.05	11.80	1.60	17.15/3855	19.4	0.71
-	428DS	12.700	8.51	7.94	4.45	17.90	19.30	12.00	1.85	18.62/4186	21.0	0.76
428MH	428H	12.700	8.51	7.85	4.45	18.80	19.90	11.80	2.03	20.60/4631	23.4	0.79
-	428HF1	12.700	8.51	7.85	4.45	17.90	19.00	11.80	1.80	19.50/4384	20.7	0.74
-	428HSH	12.700	8.51	7.75	4.45	20.00	-	12.00	2.42	27.00/6070	29.4	0.89
-	428HF4	12.700	8.51	7.94	4.50	18.90	20.10	11.80	2.03	20.50/4609	23.4	0.82
-	428HD	12.700	8.51	7.85	4.45	18.80	19.90	11.80	2.03	20.60/4631	23.4	0.85
-	428F3	12.700	8.51	7.85	4.45	16.70	18.20	11.70	1.60	17.80/4002	19.6	0.77
-	428F4	12.700	8.51	7.85	4.45	16.70	18.20	11.80	1.60	17.80/4002	19.6	0.72
* Bush chain: d1 indicates bush outer diameter.

Heavy‑Duty Drive Chains (520, 525, 530, 630 Series)

ISO Chain No.	Chain No.	Pitch	Roller diam.	Width inner	Pin diam.	Pin length		Inner plate depth	Plate thick.	Tensile min	Avg. tensile	Weight
		P mm	d1 max mm	b1 min mm	d2 max mm	L max mm	Lc max mm	h2 max mm	t/T mm	Q min kN/lbf	Q0 kN	q kg/m
		520	520	15.875	10.16	6.25	5.08	17.50	19.00	15.09	2.03	26.50/5957	29.7	0.89
-	520F2	15.875	10.16	6.35	5.24	17.50	19.05	15.09	2.03	26.50/5957	29.7	0.97
-	520F3	15.875	10.16	6.48	5.08	17.50	19.00	15.09	2.03	26.50/5957	29.7	0.89
520MH	520MH	15.875	10.22	6.25	5.25	19.00	21.20	15.30	2.20	30.50/6857	33.6	-
-	520HD	15.875	10.16	6.35	5.34	18.60	20.00	15.09	2.20	35.00/7868	38.5	1.04
525	525	15.875	10.16	7.95	5.08	19.30	20.70	15.09	2.03	26.50/5957	29.7	1.06
525MH	525MH	15.875	10.22	7.85	5.25	21.20	23.20	15.30	2.20	30.50/6857	33.6	-
-	525HF1	15.875	10.16	7.95	5.08	20.90	22.30	15.09	2.42	26.50/5957	29.7	1.20
530	530	15.875	10.16	9.40	5.08	20.70	22.20	15.09	2.03	26.50/5957	29.7	1.06
-	530SH	15.875	10.16	9.40	5.08	22.10	-	15.09	2.42	32.80/7374	33.5	1.24
-	520F12	15.875	10.16	6.25	5.25	17.60	-	15.00	2.03	29.43/6615	32.3	0.98
-	520HF7	15.875	10.22	7.80	5.30	21.35	-	15.30	2.80/2.42	40.00/8992	44.0	1.43
630	630	19.050	11.91	9.40	5.94	23.00	24.80	18.00	2.42	35.30/7936	38.8	-

O‑Ring Chains

Chain No.	Pitch	Roller diam.	Width inner	Pin diam.	Pin length		Inner plate depth	Plate thick.	Tensile min	Avg. tensile	Weight
	P mm	d1 max mm	b1 min mm	d2 max mm	L max mm	Lc max mm	h2 max mm	T max mm	Q min kN/lbf	Q0 kN	q kg/m
	420OR	12.700	7.77	6.25	3.96	16.65	17.95	12.00	1.50	16.0/3599	17.00	0.62
420HOR	12.700	7.77	6.25	3.96	18.80	20.10	12.00	2.03	16.0/3599	17.00	0.74
428HVS	12.700	8.51	7.94	4.45	21.70	22.70	12.30	2.03	22.0/4946	23.00	0.85
50LD	15.875	10.16	9.53	5.08	23.40	24.60	15.09	2.03	22.2/5045	26.50	1.12
520OR	15.875	10.16	6.70	5.30	21.20	22.30	15.09	2.20	32.0/7200	34.00	1.11
520F1OR	15.875	10.16	6.25	5.30	21.20	22.30	15.09	2.20	32.0/7200	34.00	1.09
520F2OR	15.875	10.16	9.65	5.30	24.10	25.50	15.09	2.20	32.0/7200	34.00	1.21
520V6	15.875	10.16	6.25	5.08	19.80	21.30	15.09	2.03	22.2/5045	26.50	0.96
520HOR	15.875	10.16	6.25	5.24	21.52	22.92	15.09	2.42	26.5/6022	29.60	1.26
525OR	15.875	10.16	7.95	5.30	21.50	22.90	15.09	2.03	26.5/6022	29.60	1.30
525F1OR	15.875	10.16	7.95	5.30	23.10	24.00	15.09	2.20	32.0/7200	34.00	1.16
520F14OR	15.875	10.20	6.25	5.09	19.90	-	14.90	1.80	28.4/6391	30.60	0.92
525HOR	15.875	10.16	7.95	5.30	23.10	24.50	15.09	2.42	26.5/6022	29.60	1.44
530HOR	15.875	10.16	9.53	5.24	24.80	26.20	15.09	2.42	29.0/6524	30.00	1.39
630F1OR	19.050	11.91	9.53	5.94	25.50	27.30	18.00	2.42	31.8/7149	35.00	1.50

X‑Ring Chains

Chain No.	Pitch	Roller diam.	Width inner	Pin diam.	Pin length		Inner plate depth	Plate thick.	Tensile min	Avg. tensile	Weight
	P mm	d1 max mm	b1 min mm	d2 max mm	L max mm	Lc max mm	h2 max mm	T max mm	Q min kN/lbf	Q0 kN	q kg/m
	520XR	15.875	10.20	6.25	5.09	20.10	21.10	15.09	2.03	28.00/6294	29.4	1.00
520F9XR	15.875	10.30	6.25	5.39	20.10	-	15.00	2.03	33.83/7605	35.5	1.00
520HXR	15.875	10.16	6.25	5.24	21.52	22.92	15.09	2.42	30.00/6744	31.5	1.28
525XR	15.875	10.20	7.85	5.09	21.70	22.70	15.09	2.03	26.50/5957	27.8	1.07
525HXR	15.875	10.16	7.95	5.30	23.10	24.50	15.09	2.42	26.50/5957	27.8	1.44
525SHXR	15.875	10.30	7.85	5.39	23.26	-	15.00	2.42	38.25/8599	40.2	1.20
530HXR	15.875	10.16	9.53	5.24	24.80	26.20	15.09	2.42	29.00/6519	30.5	1.39
530SHXR	15.875	10.30	9.40	5.39	24.91	-	15.00	2.42	38.25/8599	40.2	1.27