News

What are the types of gear transmission?

Gear transmission is widely used in industry. It is a mechanical transmission that uses the teeth of two gears to mesh with each other to transmit power and motion. So what are the types of gear transmission? 1. Cylindrical gear transmission For the transmission between parallel shafts, the general transmission ratio can reach 8 in […]

What are the types of gear transmission?

Gear transmission is widely used in industry. It is a mechanical transmission that uses the teeth of two gears to mesh with each other to transmit power and motion. So what are the types of gear transmission? 1. Cylindrical gear transmission For the transmission between parallel shafts, the general transmission ratio can reach 8 in […]

The swing gear/swing ring with OD2000mm is finished and delivered.

The swing gear/swing ring used for grinding machine is finished and delivered to customer. The swing gear details is as following. Product: swing gear M=6 z=358 Diameter=2161 Accuracy class: 6, with tooth grinding Material: 42CrMo4 Heat treatment: QT240-260 Tooth profile: spur gear The gear is ground with grinding machie Germany Niles gear grinder, it has CMM online […]

Two casting gear wheels were finished and delivered to French customer.

After strict production and quality control, two casting gears with outer diameter of 1700mm meet the customer’s drawings and technical requirements totally, and are sent to French customers by train.

Industrial Gearbox Service

Gearbox of Vertical mill repair and maintain

This gearbox is a repair and  maintenance project of our company for a well-known iron and steel company. Through checking whether the gears, shafts, housing, expansion sleeves, couplings, bearings and  other parts  with damage, and give reasonable maintenance suggestions to customers. Recommended replacement or repair: 1. Input shaft coupling 2. High speed shaft 3. Low […]

PRM has been back to work from March 1st, 2020 after the coronavirus be controlled.

Dear All suppliers and Partners,   Thanks for your support and understanding during this period.   Glad to inform that we have resumped to work from March 1st, 2020 after the Coronavirus be controlled in China.  We very appreicate all the effort from the peope and goverment. From Feb. 20, it has been no coronavirus […]

Installation and alignment between girth gear and pinion of ball mill

There are two kinds of transmission forms of ball mill, i.e. center transmission and edge transmission. The two kinds of transmission have their own advantages and disadvantages. The central transmission adopts a high-speed planetary reducer, which is safe and reliable, with a service life of up to 10 years, low maintenance cost, but large one-time […]

Customized survey and manufacture gear rim and pinion shaft of 3600x4000mm rotary kiln

PRM engineers conduct mapping for the user’s 3600x4000mm rotary kiln pinion shaft(gear shaft )and gear rim (big gear) at the customer’s work site, and we will manufacture this pinion shaft and gear rim for the user after the mapping is confirmed. We can not only process the gear rim and pinion shaft according to the […]

gear wheel

What key points should be followed in the selection of gear production materials?

The most important thing in gear production process is to select good materials. Only with good materials can we produce high quality gears. For the selection of materials, the main points are as follows: 1. Meet the technological performance of gear material The technological properties of materials refer to the ability of materials themselves to […]

Ball mill pinion

Pinion gear is one of the indispensable spare parts of ball mill equipment, according to the direction of tooth shape can be divided into straight teeth and oblique teeth, there are two kinds of key type and expansion type. Different specifications of the ball mill selection of pinion teeth and modulus are not the same. […]