Industrial bearings of various types on a workbench in a production hall
Utilis · ZWZ · KRW

ZWZ and KRW industrial bearings for demanding applications

Proven solutions for mining, metallurgy, power generation, rail, automotive and heavy machinery. Utilis supports customers in selecting the right bearings, preparing the technical inquiry and organising deliveries.

Send us the bearing designation, technical documentation or machine data. We will check whether a suitable solution can be selected.

Manufacturer

Industrial experience on a global scale

Dalian Heavy Industry Equipment Group – DHiE was founded in 1938 and is one of the key enterprises behind the development of the Chinese bearing industry. The group integrates research and development, manufacturing and sales, supplying solutions to the most demanding industrial sectors.

1938

DHiE founded

1.68 million m²

total site area

750,000 m²

of production space

6,549

employees

6

ZWZ production bases

2

research and development centres

22

subsidiaries

197

production lines

Brands

Two brands – a wide range of applications

ZWZ

ZWZ – bearing solutions for industry

ZWZ develops and manufactures bearings for wind power, mining, metallurgy, rail, automotive, industrial gearboxes, construction machinery and precision equipment, among others. Extensive manufacturing and research facilities allow the brand to supply both OEM machine builders and the spare parts market.

KRWKRW – Made in Germany

KRW – German engineering tradition since 1904

KRW – Leipzig Rolling Bearing Production Co., Ltd. continues the tradition of a company founded in 1904 as DKF. The brand combines German design experience, specialised staff and modern production technologies. Alongside standard bearings, KRW develops solutions built to individual customer requirements, which account for more than 20% of the company's output.

Utilis acts as a trading partner supporting bearing selection and supply. ZWZ and KRW solutions are available through Utilis.

Technical selection

Four elements that determine service life

Raceway geometry, rolling element material, cage design and the method of lubrication all have to match the real operating conditions of the machine. That is why every inquiry should include the bearing designation, documentation or equipment parameters – loads, rotational speed, temperature and working environment.

  • Bearing designation or technical drawing
  • Machine manufacturer and model
  • Loads, rotational speed and temperature
  • Environmental conditions: dust, humidity, presence of water
Close-up of a spherical roller bearing showing the rolling elements and cage
Design schematicouter ringrolling elementscageinner ring

Simplified illustrative schematic of a rolling bearing.

Applications

Bearings built for the most demanding conditions

Mining and mineral processing

Bearings for crushers, vibrating screens, vertical mills, ball mills, roller presses, rotary kilns, shearers, cutting machines and large mining vehicles.

Metallurgy and heavy industry

Solutions for iron and steel production, converters, continuous casting lines, rolling mills and equipment operating under high loads.

Wind power

Bearings for yaw and pitch systems, main shafts, gearboxes and drivetrains of wind turbines. ZWZ has more than 30 years of experience in this sector, and over 45,000 sets of wind turbine bearings are in operation worldwide.

Rail

Bearings for locomotives, axleboxes, gear units and traction motors, as well as for high-speed trains, metro vehicles, freight wagons and passenger cars.

Construction and engineering machinery

Solutions for cranes, bulldozers, loaders, excavators, road building machines, material handling equipment and heavy working machinery.

Industrial gearboxes

Bearings for heavy industrial and marine gearboxes used in mining, metallurgy and other demanding processes.

Automotive

Wheel bearings for commercial and passenger vehicles, transmission bearings, 4WD transfer case bearings and reduction gear bearings for new energy vehicles.

Precision machinery and automation

Precision cylindrical roller and ball bearings for spindles, CNC rotary tables, industrial robots, and harmonic and RV reducers.

Power generation and new technologies

Solutions for generators, turbines, drives, lithium battery manufacturing, photovoltaic installations and crystalline silicon cutting equipment.

Marine and port industry

Bearings for propeller shafts, steering systems, anchor windlasses, rope sheaves and heavy lifting equipment.

Product range

A complete product range

Spherical roller bearings

SRB

Cylindrical roller bearings

CRB

Tapered roller bearings

TRB

Ball bearings

BB

Large-size bearings

Slewing and turntable bearings

Precision bearings

Gearbox bearings

Bearings for individual applications

Solutions built to customer requirements

Have not found the right solution? Send us the designation of the bearing currently in use, a technical drawing or the operating parameters of the equipment.

Send bearing details
Research and development

International research and development network

Wafangdian

China

New product development, application technologies, testing and technical support for large bearings.

Shanghai

China

Solutions for wind power, automotive, precision machinery, cement plants, metallurgy and advanced gearboxes.

Detroit

United States

Specialisation in smaller tapered roller, cylindrical roller and ball bearings.

Schweinfurt

Germany

Solutions for industrial machinery, mining, rail, construction and wind power.

Technology cooperation

The DHiE-ZWZ research facilities are developed in cooperation with recognised technology companies, including Romax Technology, Taylor Hobson and Mahr Group. The laboratory equipped with Mahr measuring instruments reaches a measurement accuracy of up to 0.085 micrometres.

Measurement accuracy
0.085µm
Quality

Quality standards matching industrial requirements

The manufacturer declares conformity with the following standards:

ISO 9001

quality management

ISO 14001

environmental management

ISO 45001

occupational health and safety

ISO 10012

measurement management systems

ISO/IEC 17025

competence of testing and calibration laboratories

IATF 16949

quality in the automotive industry

ISO/TS 22163

quality in the railway sector

KRW holds a DIN EN ISO 9001 certificate issued by TÜV.

Working together

Why talk to Utilis?

Support in identifying and selecting the right bearing.

Analysis of a designation, drawing or technical documentation.

Solutions for OEM manufacturers and maintenance departments.

Access to a broad range of industrial bearings.

The option of preparing solutions for non-standard applications.

Communication and commercial support on the Polish market.

Coordination of the quotation process and of the delivery.

Solutions intended for high loads and difficult operating conditions.

Process

From inquiry to delivery

  1. 1

    Sending the inquiry

    The customer provides the bearing designation, quantity, documentation or information about the equipment.

  2. 2

    Technical analysis

    The requirements, operating parameters and the feasibility of a suitable solution are verified.

  3. 3

    Commercial offer

    The customer receives a product proposal together with the terms of fulfilment.

  4. 4

    Order and delivery

    Utilis coordinates commercial communication and the agreed delivery.

Inquiry

Ask about bearings for your company

Send us the basic information. We will contact you to clarify the technical requirements and prepare a proposal.

e.g. 22320 EK, NU 2226, or a description of the type.
Loads, rotational speed, temperature, dust, humidity, lubrication.
No file selected
PDF, JPG, PNG, DOCX or XLSX, up to 10 MB.

Fields marked with an asterisk are required. Please do not send documents covered by trade secrets without prior arrangement.

Looking for a reliable bearing solution?

Let us discuss the requirements of your machine or installation. Send the designation, technical documentation or describe the application – we will help you start the selection and quotation process.

Contact

+48 698 412 902office@utilis.pl
Utilis Sp. z o. o.
Bronisława Malinowskiego 5A/5
59-300 Lubin
Poland
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