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304 Stainless Steel Deep Groove Ball Bearing 21x153x28mm

Expert Overview

Engineered for exceptional performance in challenging conditions, this 304 stainless steel deep groove ball bearing offers superior corrosion resistance and reliable power transmission. Its robust construction ensures longevity and smooth operation.

StandardASTM A106
Material304 Stainless Steel
FinishPassivated
GradeN/A
Inside Diameter21mm
Outside Diameter153mm
Width28mm

Detailed Engineering Specifications

Designed for demanding industrial environments, this deep groove ball bearing features a 21mm inside diameter, a 153mm outside diameter, and a 28mm width. Constructed from premium 304 stainless steel, it provides excellent resistance to rust, corrosion, and mild acids, making it ideal for food processing, chemical handling, marine, and outdoor applications. This material choice ensures extended service life even in humid or chemically aggressive settings. The bearing's design facilitates efficient load distribution and reduces friction, contributing to overall system efficiency and reduced maintenance.

🧊 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 the mounting surfaces are clean, free from debris, and properly aligned. 2. Carefully insert the bearing into its housing, applying even pressure. Avoid hammering or excessive force. 3. Secure the bearing using appropriate retaining rings, locknuts, or shafts as per the application's design.

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
Applying excessive force during installation, leading to brinelling or deformation.Use a bearing puller or press for controlled installation. Ensure the shaft or housing is precisely sized for a snug fit.
Contaminating the bearing surfaces with dirt, dust, or grease during handling.Handle the bearing with clean, lint-free gloves in a clean environment. Keep the packaging sealed until immediately before installation.

Common Applications

  • Food and Beverage Processing Equipment
  • Chemical and Pharmaceutical Machinery
  • Marine and Coastal Equipment
  • Outdoor Conveyor Systems

⚠️ Engineering Warnings

  • Do not expose to extreme temperatures beyond material specifications.
  • Ensure proper lubrication is maintained for optimal performance and lifespan.

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: Food and Beverage Processing Equipment, Chemical and Pharmaceutical Machinery, Marine and Coastal Equipment, Outdoor Conveyor Systems.

Technical Schematic

BALL BEARING CROSS-SECTIONISO 15 — Deep Groove Ball BearingBOREOD = 52mmd = 25mmWidth: 28mmDynamic 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.