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304 Stainless Steel Deep Groove Ball Bearing - 21x153x37mm

Expert Overview

Engineered for reliability in demanding environments, this 304 stainless steel deep groove ball bearing offers superior corrosion resistance and robust load-carrying capacity, ensuring efficient power transmission in critical applications.

StandardASTM A106
Material304 Stainless Steel
FinishPassivated
GradeN/A
Inside Diameter21mm
Outside Diameter153mm
Width37mm

Detailed Engineering Specifications

A proven choice for industrial professionals, this deep groove ball bearing features a precise 21mm inside diameter, a substantial 153mm outside diameter, and a 37mm width, manufactured from high-grade 304 stainless steel. This material provides exceptional resistance to rust, corrosion, and chemical attack, making it ideal for wet, humid, or chemically aggressive environments. The robust construction ensures high radial and axial load capacities, minimizing friction and wear for extended operational life in rigorous power transmission systems.

🧊 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:Yes

Installation Procedure

1. Ensure bearing surfaces and shaft are clean and free of debris. 2. Carefully press the bearing onto the shaft using appropriate tooling, ensuring even pressure distribution. 3. Verify smooth rotation and proper seating before applying load.

Equivalent Standards (Cross-Reference)

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

Mechanical Properties

Tensile Strength75,000 psi (515 MPa)
Yield Strength30,000 psi (205 MPa)
Elongation in 2 in.40% min
HardnessRockwell B95 max

Chemical Composition

Carbon (C)0.08% max
Chromium (Cr)18.0 - 20.0%
Nickel (Ni)8.0 - 10.5%
Manganese (Mn)2.00% max

Temperature & Environment Rating

Min Operating Temp
-320°F (-195°C)
Max Continuous Temp
1400°F (760°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 / SaltwaterGood
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Improper cleaning before installationThoroughly clean both the bearing bore and the shaft to remove any dirt, dust, or manufacturing residue that could cause premature wear.
Uneven pressing during mountingUtilize a bearing press or suitable jig to apply force evenly to the bearing's outer ring when installing onto a shaft, or to the inner ring when installing into a housing, to prevent brinelling or damage.

Common Applications

  • Conveyor systems
  • Pumps and fluid handling equipment
  • Marine and offshore machinery

⚠️ Engineering Warnings

  • Avoid exposure to extreme temperatures beyond the material's rated operating range.
  • Ensure proper lubrication is maintained to prevent excessive heat buildup and wear.

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 304 Stainless Steel.

Q: What are the main applications?

A: Conveyor systems, Pumps and fluid handling equipment, Marine and offshore machinery.

Technical Schematic

BALL BEARING CROSS-SECTIONISO 15 — Deep Groove Ball BearingBOREOD = 52mmd = 25mmWidth: 37mmDynamic 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.