Precision ball bearing solutions engineered for reliable rotation, low friction, high-speed performance, and demanding industrial applications.

Ball Bearings

Precision Rotation Solutions

Ball Bearings for Industrial & OEM Applications

Ball bearings are among the most widely used rolling bearing designs, providing low-friction rotation, reliable speed capability, and efficient support for radial and axial loads across a broad range of machinery.
NPBS® supplies precision ball bearings for electric motors, pumps, gearboxes, automation equipment, power tools, agricultural machinery, transportation systems, RC models, and other industrial applications. Our product range covers multiple internal designs, dimensional series, sealing configurations, materials, precision classes, and lubrication options to meet different operating conditions.
From standard replacement bearings to OEM and private-label programs, NPBS works with distributors, equipment manufacturers, and industrial buyers to select bearing solutions based on load, speed, operating temperature, contamination, installation space, service life, and cost requirements.

Durability

Robustness of industrial bearings allows them to withstand high-speed operations and severe environments.

Load Handling

Able to handle radial, axial, or a combination of both types of loads.

Reduced Friction

Designed to reduce rotational friction, aiding the smooth operation of industrial equipment.

Bearing Interchange & Cross-Reference

Find NPBS® bearing equivalents for commonly used international bearing brands and part numbers.

Explore Ball Bearings

Ball Bearing Product Range

Explore NPBS® ball bearing families by internal design, load capability, speed requirements, installation space, and application conditions.

Deep Groove Ball Bearings →

Versatile, low-friction bearings designed for high-speed operation and radial loads with moderate axial load capability. Widely used in electric motors, pumps, gearboxes, appliances, conveyors, and general industrial machinery.

Open Bearings→
ZZ Shielded Bearings→
2RS Sealed Bearings→
Miniature Series→
Inch Series→
Stainless Steel Options→
Deep Groove Ball Bearings

Angular Contact Ball Bearings

Precision bearings with contact angles designed to support combined radial and axial loads. Suitable for high-speed spindles, pumps, gearboxes, machine tools, robotics, and precision equipment.

Single Row→
Double Row→
Matched Pairs→
High-Speed Series→
Angular Contact Ball Bearings

Self-Aligning Ball Bearings

Double-row ball bearings with a spherical outer raceway that accommodate shaft misalignment and mounting deflection while maintaining smooth, low-friction rotation.

Open Design→
Sealed Design→
Cylindrical Bore→
Tapered Bore→
Self-Aligning Ball Bearings

Four Point Contact Ball Bearings

Single-row angular contact designs engineered to support axial loads in both directions while carrying moderate radial loads, offering compact solutions where installation space is limited.

QJ Series→
Open Design→
Precision Options→
Four Point Contact Ball Bearings
Engineered for Performance

Featured Bearings

Explore popular bearing series for industrial and OEM applications.
Where Ball Bearings Work

Ball Bearing Applications

From industrial machinery to compact precision equipment, ball bearings support reliable motion across a wide range of operating environments.

Choose the Right Bearing

Ball Bearing Selection Guide

Selecting the correct ball bearing starts with the operating conditions rather than the bearing number alone. Evaluate the following parameters before confirming a bearing design.

01Bearing Type

Select the bearing type and internal design best suited to the load direction, speed, stiffness, alignment, and application requirements.

02Dimensions

Confirm bore, outside diameter, width, fits, tolerances, and the available shaft and housing installation space.

03Load

Determine radial, axial, combined, static, dynamic, and shock loads.

04Speed

Evaluate operating and maximum rotational speed together with lubrication and sealing requirements.

05Precision & Noise

Define runout, vibration, noise, torque, and positioning requirements.

06Environment

Consider temperature, dust, moisture, chemicals, vibration, and contamination.

07Lubrication

Select grease or oil type, viscosity, fill quantity, relubrication interval, and lubrication method for the operating conditions.

08Service Life

Evaluate duty cycle, reliability targets, maintenance intervals, and expected bearing life.

Ball Bearing Design & Engineering
Engineering Considerations

Ball Bearing Design & Engineering

Bearing performance depends on more than bore size and outside diameter. Internal geometry, clearance, cage design, precision, sealing, lubrication, material, and operating conditions all influence speed capability, noise, temperature, service life, and reliability.

Load & Contact Geometry

Bearing geometry and contact conditions are evaluated to support radial, axial, combined, and application-specific load requirements.

Internal Clearance

Internal clearance can be selected or controlled to suit operating temperature, fit, speed, and application requirements.

Precision Classes

Precision class selection supports required tolerances, running accuracy, speed capability, and positioning performance.

Seals & Shields

Seal and shield configurations help balance contamination protection, friction, speed, and lubricant retention.

Lubrication

Grease, oil, fill quantity, and lubrication strategy can be matched to speed, temperature, load, and service conditions.

Materials & Heat Treatment

Bearing steels, stainless materials, ceramics, and heat-treatment options can be matched to performance and environmental demands.

Built to Your Requirements

OEM & Custom Ball Bearing Solutions

NPBS® supports OEM and application-specific ball bearing requirements with configurable materials, internal clearances, precision classes, seals and shields, lubrication, dimensions, and private-label packaging. From specification review and sample validation to production, our engineering team helps match bearing design to your operating requirements.

Custom Bearing Design

Custom dimensions, geometry, and application-specific configurations.

Materials & Special Treatments

Alternative bearing steels, stainless steel, ceramics, coatings, and heat-treatment options.

Sealing & Lubrication Options

Application-specific seals, shields, grease, oil, and lubricant fill options.

Prototype & Sample Development

Engineering review, prototype development, samples, and pre-production validation.

Private Label & Packaging

Customer branding, labeling, packaging, barcodes, and identification requirements.

OEM Production & Supply

Volume production, quality control, traceability, and scheduled supply programs.

How Are Bearings Made?
Precision Manufacturing

How Are Bearings Made?

From forming and heat treatment through precision finishing, assembly, and final inspection, each stage is controlled to support consistent bearing geometry, surface quality, and running performance.

01

Forming

Rings and rolling elements are formed or machined to establish the basic bearing geometry.

02

Heat Treatment

Controlled heat treatment develops the hardness, wear resistance, and dimensional stability required for service.

03

Precision Grinding

Raceways, bores, outside diameters, and critical surfaces are precision ground to controlled geometry and tolerances.

04

Superfinishing

Critical contact surfaces are finished to reduce roughness, friction, vibration, and running noise.

05

Assembly & Lubrication

Components are cleaned, matched, assembled, lubricated, and fitted with cages, seals, or shields as required.

06

Final Inspection

Dimensional, rotational, noise, vibration, and visual checks verify the finished bearing before packaging.

Verified Before Shipment

Quality Inspection & Testing

Finished bearings are checked through dimensional inspection, running-performance verification, vibration and noise testing, visual inspection, and traceability controls before final release.

Dimensional Inspection

Bore, outside diameter, width, runout, and other critical dimensions are verified against specified tolerances.

Vibration & Noise Testing

Vibration and acoustic checks help identify abnormal running conditions and verify smooth, low-noise performance.

Rotational Performance

Rotational torque, smoothness, speed behavior, and running characteristics are checked where required.

Visual & Assembly Inspection

Assembly condition, seals, shields, lubrication, markings, and appearance are inspected before release.

Material & Hardness Verification

Material specifications, hardness, and heat-treatment results can be verified according to product and customer requirements.

Traceability & Final Release

Inspection records, batch identification, and final verification support traceability before packaging and shipment.

Start Your Ball Bearing Project

Need Ball Bearings for Your Application?

Send us your bearing number, dimensions, drawings, operating conditions, and estimated quantity. Our engineering team will help evaluate the suitable ball bearings design for your application.

Send Us Your Requirements

What to Include in Your RFQ

✓Model Number
✓Dimensions
✓Drawing Upload
✓Application
✓Quantity
✓Operating Conditions

Drawings, samples, cross references, and target specifications are welcome.

Frequently Asked Questions

Ball Bearing FAQs

NPBS® supplies a broad range of industrial bearings, including ball bearings, roller bearings, angular contact bearings, thrust bearings, miniature bearings, linear bearings, and other application-specific bearing solutions. Our products support electric motors, robotics, automation, medical equipment, food processing, power transmission, e-mobility, and other industrial applications.

Bearing selection depends on operating load, speed, shaft and housing dimensions, accuracy, temperature, environment, lubrication, and expected service life. NPBS® can evaluate your application requirements and recommend suitable bearing types, materials, internal clearances, precision grades, sealing arrangements, and lubrication options.

Yes. NPBS® supports OEM and application-specific bearing requirements, including custom dimensions, materials, heat treatment, internal clearance, precision grades, seals, lubrication, and packaging. Our engineering and manufacturing teams can support projects from specification evaluation and sample development through production and quality verification.

Depending on the bearing type and application, NPBS® can provide bearings manufactured from chrome steel, stainless steel, and other application-specific materials. Material selection can be evaluated according to load, speed, corrosion resistance, temperature, operating environment, and required bearing performance.

Yes. Internal clearance and precision grades can be specified according to application requirements. Factors such as operating speed, shaft and housing fits, temperature, load, rotational accuracy, vibration, and noise should be considered when determining the appropriate clearance and precision level.

NPBS® offers different sealing, shielding, grease, and lubrication configurations depending on bearing type and operating conditions. Options can be selected according to speed, temperature, contamination exposure, friction requirements, service life, noise, and maintenance conditions.

Yes. NPBS® supports OEM and private-label packaging for distributors, bearing brands, and industrial customers. Depending on project requirements, packaging can include customer branding, labels, barcodes, part numbers, individual boxes, bulk packaging, and other customized identification and packaging specifications.

Send NPBS® your bearing part numbers, dimensions or drawings, required quantities, application information, and any specific requirements for materials, clearance, precision, seals, lubrication, or packaging. Our team can review the specifications and provide a quotation based on your purchasing and technical requirements.