8V Series Cast Iron Twelve-Groove QD Sheaves for “8V” Belts

8V Series Cast Iron Twelve-Groove QD Sheaves for "8V" Belts

8V series twelve-groove QD (quick detachable) bushed sheaves are manufactured for 8V and 8V banded belts. They range from 12.50" to 53.00" in diameter. Depending on the sheave size, they are made to use an M, N, or P QD bushing, which we also stock. Most of our twelve-groove 8V QD sheaves are manufactured from a high-strength grade 35 cast iron, are phosphate-coated, and are painted for anti-corrosion. All of them are balanced at the factory for smooth machinery operation.

Twelve-Groove 8V QD Sheave Size Chart

Sheave Size	Bushing	Type	Pitch Diameter (P.D.)	Outside Diameter (O.D.)	(E)	(F)	(L)	(M)	Weight (LBS)
128V1600M	M	A	15.80	16.00	2-11/32"	13-7/8"	6-3/4"	4-25/32"	296
128V1700M	M	A	16.80	17.00	2-11/32"	13-7/8"	6-3/4"	4-25/32"	341
128V1800M	M	A	17.80	18.00	2-11/32"	13-7/8"	6-3/4"	4-25/32"	345
128V1900N	N	A	18.80	19.00	3/16"	13-7/8"	8-1/8"	5-9/16"	352
128V2000N	N	A	19.80	20.00	3/16"	13-7/8"	8-1/8"	5-9/16"	385
128V2120N	N	A	21.00	21.20	3/16"	13-7/8"	8-1/8"	5-9/16"	400
128V2240N	N	A	22.20	22.40	3/16"	13-7/8"	8-1/8"	5-9/16"	435
128V2480N	N	A	24.60	24.80	3/16"	13-7/8"	8-1/8"	5-9/16"	460
128V3000P	P	A	29.80	30.00	1/4"	13-7/8"	9-3/8"	4-1/4"	495
128V3550P	P	A	35.30	35.50	1/4"	13-7/8"	9-3/8"	4-1/4"	572
128V4000P	P	A	39.80	40.00	1/4"	13-7/8"	9-3/8"	4-1/4"	700
128V4450P	P	A	44.30	44.50	1/4"	13-7/8"	9-3/8"	4-1/4"	825

Related Matching 8V, 8V Banded Series V-Belt

(1) 8V-Series V-Belts

Classic 8V-Series V-Belts have a 0.63" top-width, 0.53" thickness, and a 38° angle. Additionally, 8V V-belts are one of the oldest styles of V-Belts in the industry. Because of their long-term success and economical operation, they are also one of the industry's most widely used belt series. The premium 8V-series v-belts we supply are manufactured under ISO 9001 specifications, are oil and heat resistant, and directly interchange with other brands. They are constructed of a natural rubber compound with polyester cords and use cotton with a polyester blend cover for high durability.

(2) 8V-Series Banded V-Belts

8V-series v-belts are a part of the "classic" lineup of v-belts because they are one of the oldest style belts used and one of the most common. Our belts are manufactured by ARPM standards and offer superior strength, durability, and performance. 8V-series v-belts have a 1.0" top-width per belt (band/ rib).

Related QD Bushings | Quick Disconnect Bushings

QD bushings are utilized throughout the industrial power transmission and agricultural industry for various sprockets, sheaves, pulleys, and synchronized drives. They are designed for easy installation and easy uninstallation; they are also commonly referred to as quick-disconnect bushings. QD bushings can help conventional mounting with the flange outboard and reverse mounting to where the flange is inboard and utilize a single split that extends through the entire bushing length. Our QD bushings interchange with other brands and are made from high-grade steel precision machined for perfect application fitment. QD bushings' benefits over different styles include; ease of installation/ uninstall, superior holding power, and extreme strengths. We stock all the standard sizes of QD bushings and supply custom QD bushings upon request, including stainless steel ones. QD bushings are found in some of the most rugged applications worldwide; contact our customer service team today for a quote or additional information on our premium QD bushings.

Bushing Type	(A)	(B)	(D)	(E)	(F)	(G)	(L)	Bolt Circle	Cap Screws Required	Min. Stock Bore	Max. Bore W/ KW	Max Bore W/ Shallow KW	Set Screw Size	Avg. Weight (LBS)
M	1.250"	6.500"	9.000"	5.500"	5.188"	0.423"	6.750"	7.875"	4 - 0.75X6.75	1.938"	4.750"	5.500"	0.75 - 10	37.0
N	1.500"	7.000"	10.25"	6.625"	6.250"	0.423"	8.125"	8.500"	4 - 0.875X8.5	2.438"	5.125"	6.000"	0.75 - 10	57.0
P	1.750"	8.250"	11.75"	7.625"	7.250"	0.423"	9.375"	10.00"	4 - 1X9.5	2.938"	5.983"	7.000"	0.875 - 9	120.0

Why Do Pulleys Need Surface Treatment?

Why do pulleys need surface treatment? Currently, many mechanical types of equipment have higher and higher quality requirements for pulleys, so some manufacturers will surface therapy of their pulley products to improve their appearance and use quality.The pulley belongs to the hub-type parts. The material is generally cast iron. The manufacturing process is usually based on casting and forging. Therefore, the pulley products without surface treatment are prone to burrs on the surface and hurt the hands—Rust phenomenon.Currently, the commonly used surface treatment of pulleys is phosphating and blackening. The technological process is degreasing and rust removal - water cleaning - surface conditioning - phosphating - water cleaning - chromate treatment - drying - grease or dyeing treatment:The early application of the phosphating process is rust prevention. The steel parts are phosphate to form a phosphating film, which plays a role in rust prevention. The anti-rust period of workpieces after phosphating and anti-rusting treatment can reach several months or even several years (for oiled workpieces) and is widely used for anti-rust, anti-rust, and phosphating in the process of process, transportation, packaging, and storage and use. The workpiece treated with solid alkali or strong acid will cause the phosphating film to coarsen, and the grains can be refined by surface adjustment and activation.After the pulley is phosphate and blackened, the pulley has a better all-black appearance. The important thing is that it is not easy to rust after the v belt pulley is phosphate and blackened. The pulley's service life is significantly prolonged, which can effectively help customers reduce costs.

What Are the Pulleys Used For?

The pulley is not only used on the car; it is mainly used to transmit power over long distances. It has many applications, such as the power output of small diesel engines, such as tractors, cars, etc. It is also used in mechanical transmissions, such as machining equipment, textile machinery, lathes, and forging machines.

Technological Processing

Company Profile

Raydafon is a professional manufacturer of mechanical parts. Our main products are timing pulleys, sprockets, split taper bushings, coupling, and other transmission parts. Its products are mainly exported to Germany, Britain, France, and other European countries, with an annual export value of 18 million U.S. dollars, accounting for more than 65% of the total output. The annual output value reached 200 million yuan.Our products all adopt international, European, and American advanced industrial standards, use precise and good processing equipment, develop reasonable production technology, apply efficient and flexible management systems, and improve the quality management system to ensure that the product quality is good and the price is affordable.Our factory adheres to the enterprise concept of "quality: the basis of enterprise survival, integrity: the basis of enterprise development, service: the source of enterprise development, low price: the instrument of enterprise development." We are always looking forward to the presence of customers at home and abroad, seeking win-win benefits and joint cause development.

Warehouse Stock

The warehouse covers an area of 5000 square meters and can provide all kinds of standard models A/B/C/Z, with complete quantity and large quantity in stock. Meanwhile, it accepts all sorts of non-standard customization for drawing production. The daily production capacity is 10 tons, and the delivery time is short.

Packaging & Shipping

Experienced Workers Packing Pulleys Carefully, safe wooden cases keep parts from being injured or damaged during sea or air shipment.

FAQ

Q1. Are you a manufacturer or a trading company?A: We are a manufacturer and trading company.Q2. What is your sample policy?A: We can supply the sample if we have finished parts in stock, but customers need to pay for the sample cost and shipping fee.Q3. Can you produce according to the samples?A: We can produce power transmission parts according to your samples or technical drawings. We can build the molds and fixtures.Q4. Do you test all your goods before delivery?A: Yes, we have 100% test before delivery.Q5. Can you customize pulleys?A: Yes, please send us your drawing for an accurate quotation.Q6. How long is your delivery time and shipment?A: 1. Sample Lead-times: 10-20 days.2. Production Lead-times: 30-45 days after the order is confirmed.Q7. How do you make our business a long-term and good relationship?A: 1. We keep good quality and competitive price to ensure our customers' benefits ;2. We respect every customer as our friend and sincerely do business and make friends with them, no matter where they come from.Q8: What are your advantages?1. The most competitive price and good quality.2. Perfect technical engineers give you the best support.3. OEM is available.