ABOUT LUMI BEARING · PRECISION MANUFACTURING PARTNER

About LUMI Bearing

LUMI Bearing manufactures and supplies precision ball bearings for electric motors, drones, robotics, home appliances, gearboxes, industrial equipment and other demanding applications. From specification review and sample testing to stable volume production, we help customers identify bearing solutions that fit the actual working conditions of their products.

10+ years of bearing experience12,000 m² production facilities100% finished bearing inspection
LUMI Bearing team group portrait
One responsive teamEngineering · purchasing · quality · project support
Outer ring inner raceway grinding workshop Precision grinding

WHO WE ARE

More Than a Bearing Supplier

LUMI Bearing is a precision ball bearing manufacturer and application-oriented supplier serving customers across motors, drones, robotics, home appliances, gearboxes, industrial equipment and other precision-driven industries.

With more than 10 years of experience in bearing production and application support, we understand that selection involves more than matching a model number or dimension. Speed, load, noise, vibration, temperature, sealing, lubrication, corrosion resistance and expected service life all influence performance.

Our team works from specification review and sample development through quality confirmation and volume production. Standard bearings, customized configurations and alternatives to an existing product can all be evaluated in the customer's actual application.

Share your application requirements

KEY FACTS

Capability at a Glance

A concise view of the production, storage, engineering and inspection resources supporting customer projects.
10+

Years

Bearing manufacturing and application experience

12,000 m²

Production

Facilities for controlled bearing production

3,000 m²

Warehouse

Capacity supporting repeat OEM supply

20+

Technical team

Engineering and application support members

100%

Inspection

Finished bearing inspection before shipment

P5 / ABEC-5

Precision

Precision grades available by specification

OUR PRODUCT RANGE

A Flexible Product Range for Different Applications

Precision deep groove ball bearings across miniature, small and selected standard-size ranges—supporting compact mechanisms as well as wider motor, gearbox, appliance and industrial applications.

ENGINEERING AROUND THE APPLICATION

The Bearing Number Is Only the Starting Point

Two bearings with the same dimensions can perform very differently when their internal configurations are not the same. That is why our evaluation goes beyond model numbers and price.

Rotational speed and operating cycleRadial and axial loadNoise and vibration requirementsOperating temperatureDust, moisture and corrosion exposureLubrication type and grease quantitySeal or shield structureInternal clearanceRequired service lifeInstallation and assembly conditions

Configurations can include bearing steel or stainless steel, ZZ, RSR and 2RS closures, CN/C3/C4 clearance, Z2/Z3/Z4 noise levels, V2/V3 vibration levels, P6/P5 precision, ceramic balls and application-specific grease or light oil.

APPLICATION REVIEW

Translate operating conditions into a practical bearing specification.

01Model, drawing and assembly conditions
02Speed, load, temperature and environment
03Sample validation and production reference
Specification · operating conditions · sample validation

MANUFACTURING CAPABILITY

Manufacturing Built for Consistency

Stable bearing performance depends on consistent control from component preparation and precision processing to assembly, lubrication, inspection and packaging.
LUMI Bearing automated production workshop
Manufacturing overview
Automated bearing assembly equipment with operator
Automated assembly
Bearing superfinishing production zone
Superfinishing
01Ring dimensional inspection
02Raceway and surface control
03Automatic ball loading and separation
04Retainer assembly
05Shield or seal pressing
06Lubrication and grease filling
07Noise and vibration inspection
08Rotational performance testing
09Appearance inspection
10Final cleaning and packaging

For customized projects, production follows the confirmed technical specification and approved samples to support consistency from evaluation to repeat orders.

WAREHOUSING & SUPPLY

Organized Inventory for Repeat Supply

Production capability is supported by structured finished-goods storage and controlled internal material flow for repeat OEM orders.
LUMI Bearing finished goods warehouse
Finished-goods warehouse

Capacity that supports ongoing supply

Our 3,000 m² warehouse capacity supports organized storage, repeat-order preparation and coordination between production, inspection and shipment.

Finished goods organized by model and project Internal material flow supporting production Inventory planning for repeat OEM demand
Semi-finished bearing components in organized storage
Semi-finished material control

QUALITY CONTROL

Quality Controlled From Components to Finished Bearings

A successful sample is only the beginning. The same specification and performance must remain stable when a project moves into volume production.
LUMI Bearing dimensional inspection and metrology laboratory
Dimensional inspection & metrology
Dimensional and tolerance inspectionNoise and vibration testingRotational performance testingGrease and lubrication verificationSalt spray testing for 48, 72 or 96 hoursHigh- and low-temperature lubrication optionsSample-to-production consistency controlRoHS and REACH compliance support

Finished bearings are inspected before shipment according to the agreed quality standard. Approved samples and confirmed technical specifications are used as references for customized volume production.

QUALITY MANAGEMENT SYSTEMS

Current quality management certificates

Open a certificate to inspect the uploaded document.

PATENTS

Process and equipment development

FROM REQUIREMENT TO MASS PRODUCTION

A Clear Path From Evaluation to Supply

01

Requirement Review

Share a model, drawing, application, operating conditions or current product information. We identify the key requirements and open questions.

02

Configuration Confirmation

Dimensions, materials, closures, clearance, precision, noise, vibration and lubrication are aligned with the application.

03

Sample Testing

Samples are prepared for dimensional, operational and application testing. Standard preparation normally takes about 7–10 days, depending on the specification.

04

Volume Production

After approval, the confirmed specification guides production and quality control. Typical lead time is about 20–30 days, subject to model, quantity and customization.

For projects involving multiple bearing models, we often recommend validating a small number of priority models before expanding to the full product range.

Start With Priority Models

WHY LUMI

Why Manufacturers Work With LUMI

Application-Based Recommendations

Configurations are evaluated according to operating conditions, not only model numbers.

Flexible Product Options

Sizes, materials, precision, clearance, lubrication, sealing, marking and packaging are reviewed by project.

Sample Validation

Samples help confirm dimensions, performance and application fit before volume production.

Consistent Quality Control

Approved specifications guide sample preparation and repeat production.

Responsive Project Support

Engineering, purchasing and quality questions are coordinated through one responsive team.

START A BEARING REVIEW

Let's Find the Right Bearing for Your Application

Tell us the bearing model, dimensions, application, operating speed, required quantity or the problem you are experiencing. Our team will recommend the next step—specification confirmation, sample preparation or a production quotation.

Drawings, photos and current bearing samples are welcome.