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CNC Grinder for Bearing Components

-- Steady & Reliable Manufacturer --

Intro

This CNC grinder is built specifically for bearing ring production — grinding the OD, bore and raceway of inner and outer rings to the roundness, waviness and surface-finish levels bearing manufacturing demands, rather than general shaft or roller work.

Core Capability

Dedicated raceway-profile grinding wheels and CNC-controlled infeed hold the curved raceway geometry to close tolerance, while separate OD/bore stations or attachments cover the ring's outer and inner diameters. The line can be arranged as standalone stations or a connected sequence feeding a downstream superfinishing step.

Premium Materials and Components

Materials and components are the most critical elements to affect the performance of the equipment.

We use high-quality raw materials and branded components to ensure that our high-performance machines have a long service life and short downtime.

  • External grinding wheel chuck
  • Flat grinding wheel chuck
  • Φ 400 or Φ 600 balance frame
  • M7130-5006 front bearing
  • Rapid advance and retreat cylinder
  • Pressure valve plate assembly
  • Feed box assembly
  • Overflow valve
  • Table control box
  • Grinding head box
  • Control panel assembly
Design for High Performance

The performance of a machine is the result of the combined effect of all its components.

Our technical team consists of experienced engineers and technicians who are not only proficient in the operation and maintenance of grinders, but also have a deep understanding of material properties and processing technology. This enables us to provide customers with customized solutions to meet their specific processing needs.

By deeply studying the design and manufacturing process of precision grinding machines and paying great attention to configuration and construction from the beginning, our R&D team is able to provide high-performance equipment.

Specification

ItemValue
ModelMGB1080 (bearing series)
Ring outer diameter rangeØ20–300mm
Ring width range5–80mm
Raceway profile accuracy≤0.001mm
Roundness accuracy≤0.001mm
Waviness≤0.3µm (per relevant bearing standard)
Surface finish (pre-superfinish)Ra0.1–0.2µm
Cycle time per ring15–40 seconds (size/quantity dependent)
CNC systemFanuc 0i-F / Siemens 828D
Machine weightapprox. 5 tons

Exact cycle time depends on ring size, stock removal and whether OD, bore and raceway are ground on separate stations or one combined cell — share your bearing drawing and target output rate for a matched line configuration.

Workpiece Range

Covers inner and outer bearing rings from Ø20–300mm outer diameter and 5–80mm width, in bearing-grade hardened steel. Raceway curvature, OD and bore can be assigned to dedicated stations for higher throughput or combined on fewer machines for lower-volume bearing types.

Production Fit

Designed for bearing manufacturers running continuous or high-repeat batches of one or a few ring sizes, where raceway geometry consistency directly affects bearing life and noise performance, rather than for one-off or highly varied part work.

Core Functions

  • CNC-profiled raceway grinding wheel path matched to the bearing's curvature specification
  • Dedicated OD and bore grinding stations or attachments for full-ring machining
  • Automatic wheel dressing to maintain raceway profile accuracy over a production run
  • In-process gauge feedback for closed-loop diameter and profile control
  • Cycle and dimensional data logging to support bearing-industry quality documentation
  • Interface point for a downstream superfinishing/lapping station where required

Quality Control

  • Raceway profile and roundness verified against the bearing drawing before shipment
  • Waviness testing consistent with relevant bearing-industry inspection practice
  • Factory acceptance test (FAT) run on the customer's own ring sample
  • In-process gauge calibration cross-checked against CMM measurement
  • ISO9001-certified manufacturing with documented warranty and support terms

FAQ

  • Q: Can one machine grind OD, bore and raceway on the same ring?
  • A: Depending on ring size and target output, this can be arranged as dedicated stations for higher throughput or combined on fewer machines for lower-volume bearing types — share your bearing drawing and volume for a line recommendation.
  • Q: What roundness and waviness can this line achieve?
  • A: Typical results are roundness ≤0.001mm and waviness ≤0.3µm consistent with common bearing-industry inspection practice, verified against your specific bearing drawing.
  • Q: Does the line include superfinishing, or only grinding?
  • A: The base line covers CNC grinding of OD, bore and raceway; a downstream superfinishing/lapping station can be added or interfaced separately depending on your final surface-finish requirement.
  • Q: Can it be reconfigured for different bearing series?
  • A: Yes, raceway profile programs and fixtures are matched to each bearing series; switching between a small number of established series is mainly a program and fixture change.
  • Q: What is the typical lead time?
  • A: Standard single-station configurations usually ship in 75–100 days; multi-station lines with automation typically require 120–150 days.

Equipment Configuration

  • Dedicated raceway-profile wheel spindle with CNC-controlled dressing
  • Separate or combined OD/bore grinding stations depending on line layout
  • High-rigidity spindle bearings for consistent raceway curvature over the run
  • Choice of Fanuc or Siemens CNC control across the bearing-grinding line
  • PLC networking ready for connection to downstream superfinishing equipment

Where It Is Used

  • Ball and roller bearing ring manufacturers
  • Automotive wheel-bearing and gearbox-bearing producers
  • Industrial machinery bearing component suppliers
  • Bearing remanufacturing and repair specialists
  • Contract grinding suppliers serving bearing OEMs

Automation Options

  • Line integration with upstream forging/turning and downstream superfinishing stations
  • Automatic ring loading and orientation for continuous production
  • Custom raceway profile programming for specific bearing series
  • In-process gauge points matched to critical raceway and roundness specifications
  • MES/production-data connectivity for output tracking and quality documentation
  • 35000 m²+
    Total Factory Area
  • 2003
    Was Founded In
  • 210+
    Precision Equipment
  • 45+
    Exporting Countries & Regions
Zhejiang Quanshun Machine Tool Co., Ltd.

Zhejiang Quanshun Machine Tool Co., Ltd.

Zhejiang Quanshun Machine Tool Co., Ltd. is a professional manufacturer of precision grinding machines. It is located in Zhuji, Zhejiang Province, the main economic development area of the Yangtze River Delta. It is 65km away from Hangzhou, 180km away from Shanghai, 60km away from Hangzhou International Airport, and 60km away from expressways such as Hangjinqu, Zhuyong, and Shaozhu, with convenient transportation and unique geographical location.

The company covers an area of 35000 square meters and a building area of 32000 square meters. Zhejiang Quanshun Machine Tool Co., Ltd. is a professional wholesale CNC Grinder for Bearing Components Manufacturers and CNC Grinder for Bearing Components Factory. It has a machine tool production base and a hydraulic parts production base. The main products are various specifications of ordinary (CNC) cylindrical grinding machines, CNC end face cylindrical grinding machines, automatic loading and unloading CNC (end face) cylindrical grinding machines, composite grinding machines，high-precision ordinary (CNC) cylindrical grinding machines, and we can design and develop various kinds of non-standard special grinding machines according to the needs of users and provide relevant technology, software, training services and automation solutions. Our company has complete product research and development capabilities, passed IS09001-2015 quality system and CE safety certifications, and was named "National High-tech Enterprise".In 2021, it was rated as a specialized and new small and medium-sized enterprise in Zhejiang Province. We also have self-export qualifications. Our company adheres to the concept of "quality first, reputation first, service first", so that our products have a good reputation in the market. At present, our products have been exported to more than 20 countries, such as the United States, Germany, Japan, and Southeast Asia.

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Certificate

Believe In Our Strength

Zhejiang Quanshun Machine Tool Co., Ltd. has more than 20 years of industry experience, we specialize in the manufacture of high-quality precision grinding machines.
  • Advanced manufacturing procedures.
  • Full quality management system.
  • Thoughtful after-sales service.

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