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Polycarbonate Deep Groove Ball Bearing | 70x39x29mm | Power Transmission

Expert Overview

This advanced deep groove ball bearing, constructed from high-grade polycarbonate, offers exceptional performance in power transmission systems. Its unique material properties provide lightweight operation and superior resistance to corrosive environments.

StandardASTM A106
MaterialPolycarbonate
FinishPassivated
GradeN/A
Inside Diameter70mm
Outside Diameter39mm
Width29mm

Detailed Engineering Specifications

Precision-manufactured to tight tolerances, this polycarbonate deep groove ball bearing features an inside diameter of 70mm, an outside diameter of 39mm, and a width of 29mm. The polymer construction offers a significantly lower weight compared to traditional steel bearings, reducing inertial loads and energy consumption. It exhibits excellent chemical resistance to many solvents, acids, and bases, making it suitable for operation in challenging environments where lubrication might be compromised or conventional lubricants are incompatible. The inherent dielectric properties also make it suitable for electrical insulation applications. Its robust design ensures reliable rotational performance under moderate loads.

🧊 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 press the bearing into its designated housing, applying even pressure to the outer race. 3. Verify smooth rotation and proper seating before engaging drive mechanisms.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASTM A106

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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Applying excessive force to the inner race during installation.Always apply force to the outer race when pressing the bearing into its housing to avoid deforming the inner race and damaging the ball elements.
Using inappropriate lubricants that can degrade polycarbonate.Consult material compatibility charts to select lubricants specifically designed for or proven safe with polycarbonate to prevent material degradation and premature failure.

Common Applications

  • Lightweight Robotics
  • Chemical Processing Equipment
  • Food and Beverage Machinery

⚠️ Engineering Warnings

  • Not suitable for high-impact or shock loads.
  • Operating temperature limits must be observed to prevent material deformation.

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: Lightweight Robotics, Chemical Processing Equipment, Food and Beverage Machinery.

Technical Schematic

BALL BEARING CROSS-SECTIONISO 15 — Deep Groove Ball BearingBOREOD = 52mmd = 25mmWidth: 29mmDynamic 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.