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Brass Deep Groove Ball Bearing | 21x136x9mm | Power Transmission

Expert Overview

This brass deep groove ball bearing offers exceptional corrosion resistance and conductivity, making it ideal for specialized power transmission systems. Its precise dimensions ensure smooth operation and reduced friction.

StandardDIN 933
MaterialBrass
FinishBlack Oxide
GradeN/A
Inside Diameter21mm
Outside Diameter136mm
Width9mm

Detailed Engineering Specifications

Engineered for reliability and performance, this deep groove ball bearing boasts a 21mm inside diameter, a substantial 136mm outside diameter, and a compact 9mm width. Constructed from high-grade brass, it exhibits excellent thermal conductivity and superior resistance to corrosive environments, outperforming standard steel bearings in specific applications. This material choice also minimizes potential issues with stray electrical currents. The precise internal geometry and ball complement ensure low friction, high rotational speeds, and significant radial and axial load-carrying capacity, vital for efficient power transmission in demanding industrial settings.

🧊 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 bearing housing and shaft are clean and free from contaminants. 2. Apply a light coat of appropriate lubricant to the shaft and the bearing's inner ring. 3. Carefully press the bearing onto the shaft using a bearing press or appropriate tooling, applying even pressure to the inner ring only.

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

Chemical Composition

Copper (Cu)60.0 - 63.0%
Zinc (Zn)Balance
Lead (Pb)2.5 - 3.7%

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 outer ring during shaft mounting.Always apply mounting force to the inner ring when installing on a shaft to prevent damage to the bearing raceways and balls.
Using incorrect lubrication for the operating environment.Consult the application requirements and lubricant compatibility charts to select a lubricant that provides adequate protection for the brass bearing and operating conditions.

Common Applications

  • Electric motor shafts in corrosive atmospheres
  • Specialized conveyor systems
  • High-frequency induction applications

⚠️ Engineering Warnings

  • Avoid exposure to extreme temperatures beyond the specified operating range.
  • Ensure proper shaft and housing fits to prevent premature bearing failure.

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 Brass.

Q: What are the main applications?

A: Electric motor shafts in corrosive atmospheres, Specialized conveyor systems, High-frequency induction applications.

Technical Schematic

BALL BEARING CROSS-SECTIONISO 15 — Deep Groove Ball BearingBOREOD = 52mmd = 25mmWidth: 9mmDynamic 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.