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

8V series five-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 F, J, M, or N QD bushing, which we also stock. Most of our five-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.

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

8V series five-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 F, J, M, or N QD bushing, which we also stock. Most of our five-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.

Five-Groove 8V QD Sheave Size Chart

Sheave SizeBushingTypePitch Diameter (P.D.)Outside Diameter (O.D.)(E)(F)(L)(M)Weight (LBS)

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
Bolt Circle
Cap Screws Required
Min. Stock Bore
Max. Bore W/ KW
Max Bore W/ Shallow KW
Set Screw Size
Avg. Weight (LBS)
F0.813"4.437"6.625"2.813"2.500"0.423"3.625"5.625"3 - 0.563X3.6251.000"3.313"3.938"0.5 - 1311.5
J1.000"5.148"7.250"3.500"3.188"0.423"4.500"6.250"3 - 0.625X4.51.438"3.750"4.500"0.625 - 1118.0
M1.250"6.500"9.000"5.500"5.188"0.423"6.750"7.875"4 - 0.75X6.751.938"4.750"5.500"0.75 - 1037.0
N1.500"7.000"10.25"6.625"6.250"0.423"8.125"8.500"4 - 0.875X8.52.438"5.125"6.000"0.75 - 1057.0

How to Avoid the Problem of Over-tightening the Pulley?

Many customers are very trying in the process of disassembling the pulley, so the disassembly process is easy to damage the pulley, which is often caused by the over-tightening of the pulley, and the over-tightening of the pulley will easily affect the regular operation of the equipment, so how can we avoid the problem of over-tightening the pulley?

To solve the problem that the shaft and the pulley are too tight, it is recommended to start from the following two aspects:

1. Do not install the key first; use an emery cloth to remove the burrs and rust on the groove surface, use a file to repair the file when the burr is serious, and then install the pulley on the shaft without installing the key. Check the shaft diameter and wheel hole if it is very tight or cannot be installed. If the motor shaft is large, you can turn on the power to make the motor rotate and press it against the rotating shaft with an emery cloth (pay attention to safety), which is easy for repair electricians. Do it. In this way, the trimming will not produce an ellipse; it will save effort and then try to install it. Apply lubricating oil on the shaft each time you want to install it. The v belt pulley can be pushed in by hand or lightly driven with a hammer, but it cannot feel loose.

2. Measure the depth of the keyway. This dimension should be larger than the thickness of the key. Otherwise, the thickness of the key should be thinned until the gap between the key and the bottom of the hub groove depends on the size of the shaft. Generally, 0.2~0.6mm (check the critical standard), put the key into the wheel hub, and it should be able to slide slightly loosely. If not, repair the burr or find the reason to fix it, then gently drive the key into the shaft groove with a hammer. The key needs to be replaced. And evenly apply lubricating oil on the pulley hole, shaft, and critical during assembly.

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

HZPT 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.


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.

Additional information



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We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.

Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

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