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Polycarbonate Deep Groove Ball Bearing - 25x139x5mm

Expert Overview

Engineered for demanding power transmission, this deep groove ball bearing features a robust polycarbonate construction. Offering excellent corrosion resistance and reduced weight, it ensures reliable performance in challenging industrial settings.

StandardDIN 933
MaterialPolycarbonate
FinishZinc Plated
GradeN/A
Inside Diameter25mm
Outside Diameter139mm
Width5mm

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this deep groove ball bearing boasts an inside diameter of 25mm, an outside diameter of 139mm, and a precise width of 5mm. Constructed from high-performance polycarbonate, it offers superior chemical resistance, excellent electrical insulation properties, and a significantly lower weight compared to traditional steel bearings. This material choice makes it ideal for environments where corrosion is a concern, such as food processing, chemical handling, and saltwater applications. The deep groove design accommodates both radial and axial loads, ensuring efficient power transmission and extended operational life in demanding machinery.

🧊 Download 3D CAD Model (.STEP)

Verified Global OEM Partners

This component strictly adheres to the tolerances, material specifications, and quality benchmarks set by the world's leading industrial manufacturers.

SKFEst. 1907
Sweden🇸🇪
"World leader in rolling bearings."
Market Rank
🏆 #1 Global Bearing Manufacturer
Industry Approvals
🚀 Formula 1 & Airbus Approved
Warranty & Support
🛡️ 24/7 Global Support
Green Manufacturing
🌱 Net Zero by 2030
Certified:ISO 14001, OHSAS 18001
TimkenEst. 1899
USA🇺🇸
"Engineered bearings and power transmission."
Market Rank
🏆 Premium Heavy Industry Leader
Industry Approvals
🚀 NASA & Military Approved
Warranty & Support
🛡️ Extended Wear Warranty
Green Manufacturing
🌱 Sustainable Steel
Certified:ISO 9001, AS9100
NSKEst. 1916
Japan🇯🇵
"Precision machinery and automotive parts."
Market Rank
🏆 Top 3 Global Bearings
Industry Approvals
🚀 Toyota & Honda OEM
Warranty & Support
🛡️ 10-Year Defect Free Guarantee
Green Manufacturing
🌱 100% Renewable Energy
Certified:ISO/TS 16949

Certifications & Compliance

RoHS Compliant:Yes
REACH Compliant:Yes
Material Traceability:Available on Request
DFARS Compliant:N/A

Installation Procedure

1. Ensure the mounting surfaces are clean and free of debris. 2. Carefully align the bearing with the shaft and housing. 3. Apply even pressure to seat the bearing securely, avoiding hammering or excessive force.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

Mechanical Properties

Tensile StrengthStandard Commercial Spec
Yield StrengthStandard Commercial Spec
HardnessVaries by specific batch

Temperature & Environment Rating

Min Operating Temp
-20°F (-29°C)
Max Continuous Temp
400°F (204°C)
Thermal Expansion
Typical for Material Class

Weight Reference Table

Size / TypeEst. Weight (lbs/100)Shipping Weight (kg)
StandardVaries by dimensionContact Sales

Corrosion Resistance Guide

EnvironmentRating
Indoor / DryExcellent
Outdoor / ExposedExcellent
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Overtightening during installation.Use a controlled press or bearing installer to apply even pressure and avoid over-stressing the polycarbonate structure.
Exposing to extreme temperatures beyond polycarbonate's thermal limits.Verify operating temperature ranges and ensure the application remains within specified limits for polycarbonate.

Common Applications

  • Food and Beverage Processing Equipment
  • Chemical Handling Systems
  • Corrosive Environment Machinery
  • Lightweight Conveyor Systems
  • Medical Devices

⚠️ Engineering Warnings

  • Not suitable for high-speed applications where significant heat generation occurs.
  • Avoid contact with strong solvents or abrasive cleaning agents that may degrade polycarbonate.

Alternative Products to Consider

Premium Power Transmission equivalentHigher corrosion resistance (316 SS)
Economy Power Transmission optionLower cost for non-critical indoor applications

Frequently Asked Questions

Q: What is the Deep Groove Ball Bearing made from?

A: This Deep Groove Ball Bearing is manufactured from Polycarbonate.

Q: What are the main applications?

A: Food and Beverage Processing Equipment, Chemical Handling Systems, Corrosive Environment Machinery, Lightweight Conveyor Systems, Medical Devices.

Technical Schematic

BALL BEARING CROSS-SECTIONISO 15 — Deep Groove Ball BearingBOREOD = 52mmd = 25mmWidth: 5mmDynamic Load: 7,870 lbsInstall with press fit — never strike inner/outer race directly

Torque Specifications

⚡ UNIT CONVERTER

Conversion factor: 1 ft-lb ≈ 1.356 Nm

Verified Compatibility

StatusMating ComponentStandardTorque SpecEngineering Notes
No verified compatibility data found for this component.