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304 Stainless Steel Deep Groove Ball Bearing 19x21x18mm

Expert Overview

Engineered for reliable performance in corrosive environments, this 304 stainless steel deep groove ball bearing offers exceptional durability and smooth operation. Its robust construction ensures efficient power transmission under challenging conditions.

StandardASTM A106
Material304 Stainless Steel
FinishAnodized
GradeN/A
Inside Diameter19mm
Outside Diameter21mm
Width18mm

Detailed Engineering Specifications

Manufactured under strict quality controls, this deep groove ball bearing features an inside diameter of 19mm, an outside diameter of 21mm, and a width of 18mm. Constructed from premium 304 stainless steel, it provides superior corrosion resistance and longevity, making it ideal for applications exposed to moisture, chemicals, or saltwater. This material also offers good mechanical strength for its size, ensuring efficient load distribution and minimal friction for consistent power transmission. The tight tolerances guarantee optimal raceway contact and operational stability.

🧊 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 shaft and housing surfaces are clean and free from debris. 2. Carefully align the bearing with the shaft and housing, applying even pressure to press it into place. 3. Verify smooth rotation after installation and ensure no binding or excessive play.

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
Forcing the bearing onto the shaft or into the housing without proper alignment.Use a bearing puller/installer or a press with appropriate tooling to apply force evenly and ensure correct alignment.
Contaminating the bearing during installation (e.g., with dirt, debris, or improper lubricants).Work in a clean environment and handle the bearing with clean hands or tools. Apply lubricant only as specified for the application.

Common Applications

  • Marine equipment and offshore applications
  • Food processing machinery
  • Chemical processing equipment
  • Medical devices

⚠️ Engineering Warnings

  • Ensure correct lubricant is used for the specific operating environment and temperature range.
  • Avoid excessive shock loads or impacts, which can damage the bearing raceways and balls.

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: Marine equipment and offshore applications, Food processing machinery, Chemical processing equipment, Medical devices.

Technical Schematic

BALL BEARING CROSS-SECTIONISO 15 — Deep Groove Ball BearingBOREOD = 52mmd = 25mmWidth: 18mmDynamic 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.