Introduction
Selecting a rolling bearing is an engineering decision shaped by load, speed, mounting, environment and service requirements. The correct bearing type and configuration depend on how the shaft is supported, how load is applied and what maintenance practice the plant can sustain.
This guide gives plant engineers, maintenance teams and purchase managers a practical selection framework. It explains what to decide first, how to narrow bearing type, and where to find manufacturer-specific data on Golden Bearing Company product pages.
General principles below are established engineering guidance. Dynamic and static load ratings, speed limits, clearance groups, fits, dimensions and grease specifications are manufacturer-specific — confirm against the relevant type authority page or catalogue before ordering.
Start with application duty
Before comparing bearing types, collect the duty information your supplier or engineer will need:
| Input | Why it matters |
|---|---|
| Radial and axial load | Determines whether radial, thrust or combined-load bearing types are required. |
| Load direction and magnitude | Combined loads may need angular contact, tapered or paired arrangements. |
| Operating speed | Affects cage design, lubrication method and limiting speed. |
| Required service life | Informs size selection against catalogue dynamic load rating (see load ratings guide). |
| Shaft and housing bore | Bore diameter is the primary size key; fits affect internal clearance after mounting. |
| Mounting arrangement | Fixed vs floating location, axial retention and preloading requirements. |
| Misalignment | Self-aligning types may be needed where shaft deflection or housing misalignment is expected. |
| Operating temperature | Influences clearance group, lubricant and sealing choice. |
| Environment | Contamination, moisture, washdown and vibration influence sealing and relubrication. |
| Maintenance practice | Sealed or relubricatable designs vs open bearings with external lubrication. |
If you are replacing an installed bearing, note any visible designation, stampings and housing type. Identification support is not an interchange guarantee — send details for engineering review. See bearing designation identification.
Selection checklist
Use this sequence to narrow options before opening a specific type authority or catalogue:
- Confirm load type and direction — radial, axial or combined; steady or shock.
- Estimate equivalent load and required life — use manufacturer data for the shortlisted type (see load ratings guide).
- Confirm speed — operating RPM and any plant speed limits.
- Define mounting arrangement — fixed/floating, axial location, paired sets if needed.
- Assess alignment — expected shaft deflection or housing misalignment.
- Specify environment — contamination, moisture, temperature range.
- Choose lubrication and sealing — grease, oil, sealed or shielded options.
- Select bearing type — use the routing table below.
- Review clearance and fits — see clearance and fit guide.
- Request quotation — send duty data for engineering confirmation.
Bearing type routing
No single bearing type suits every application. The table below routes common duty profiles toward type authorities on the GBC bearings hub. Follow links for construction context and selection notes.
| Bearing type | Typical strengths | Consider when | GBC type authority |
|---|---|---|---|
| Deep groove ball | Simple radial support, moderate speed | General-purpose motors, pumps, fans, light combined load | Deep groove ball bearings |
| Angular contact ball | Combined radial and axial load, defined contact angle | Machine tool spindles, paired mounting for stiffness | Angular contact ball bearings |
| Cylindrical roller | High radial capacity, line contact | Gearboxes, electric motors, speed-critical radial duty | Cylindrical roller bearings |
| Spherical roller | Heavy radial load, misalignment tolerance | Vibrating screens, conveyors, misaligned housings | Spherical roller bearings |
| Tapered roller | Combined radial and thrust, paired sets | Wheel hubs, gearboxes, heavy industrial drives | Tapered roller bearings |
| Needle roller | Compact radial capacity in limited space | Transmissions, rocker arms, compact mechanisms | Needle roller bearings |
| Thrust | Axial load in one or both directions | Vertical shafts, screw presses, axial retention | Thrust bearings |
| Linear motion | Precision or general linear guidance | Machine slides, automation, positioning axes | Linear motion bearings |
| Mounted / pillow block | Integrated bearing and housing | Conveyors, fans, general industry where split housing access matters | Dodge mounted bearings |
Type grouping on the bearings hub is a selection aid, not a statement that types are interchangeable.
Mounting and environment
Radial vs axial loading
Pure radial duty often starts with deep groove ball or cylindrical roller types. Significant axial load may require angular contact, tapered or paired arrangements. Thrust bearings address primarily axial duty.
Mounting arrangement
- Fixed location — one bearing resists axial displacement of the shaft relative to the housing.
- Floating location — allows axial thermal expansion; typically one bearing is fixed and the other floats.
- Preload — angular contact and some machine-tool arrangements use controlled preload; follow manufacturer guidance.
Sealing and lubrication
Open bearings rely on external lubrication and protection. Sealed or shielded designs retain grease and exclude contamination but may have lower speed limits. Relubrication features on mounted units extend service life in harsh environments.
Temperature
Operating temperature affects installed clearance, lubricant viscosity and seal material. High-temperature duty may require greater clearance group (for example C3) — confirm with manufacturer tables in the clearance and fit guide.
Manufacturer-specific data
Golden Bearing Company publishes engineering reference content for bearing types and authorised relationship hubs. Use these pages for construction context, selection notes and portfolio routing:
| Pathway | Hub | Role |
|---|---|---|
| Bearing types | Industrial bearings | Type authorities for major rolling bearing families |
| Dodge Industrial | Dodge mounted bearings | Authorised distributor for mounted units and pillow blocks |
| Regal Rexnord | Regal Rexnord bearings | Portfolio brands for mounted and roller lines |
| Linear motion | Linear motion guideways | HIWIN and CPC profile rail references |
Listing a type in this guide does not mean it substitutes for another type in the same row. Catalogue size selection requires manufacturer-specific ratings.
Next steps
- Review the industrial bearings category and type tiles.
- Open the type authority that matches your duty profile.
- For load rating and life concepts, read Bearing Load Ratings Explained.
- For part number identification, read How to Read Bearing Designations.
- For mounted units, read Pillow Block and Mounted Bearing Selection.
- Send duty data through engineering enquiry for quotation support.
Scope and limitations
- This article provides general bearing selection methodology only; type authority pages own construction and selection context.
- Numerical ratings, clearances, fits and speed limits must come from manufacturer catalogue or governed product data.
- Identification support is not an interchange or equivalence guarantee.
- Golden Bearing Company does not publish universal equivalence between bearing brands in this guide.