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304 Stainless Steel Deep Groove Ball Bearing - 73x37x21mm

Expert Overview

This 304 stainless steel deep groove ball bearing offers superior corrosion resistance and durability. Engineered for smooth, low-friction operation in demanding power transmission systems.

StandardDIN 933
Material304 Stainless Steel
FinishPassivated
GradeN/A
Inside Diameter73mm
Outside Diameter37mm
Width21mm

Detailed Engineering Specifications

Built to exacting engineering tolerances, this deep groove ball bearing boasts an inside diameter of 73mm, an outside diameter of 37mm, and a width of 21mm. Fabricated from premium 304 stainless steel, it exhibits exceptional resistance to corrosion, making it suitable for operation in humid or chemically aggressive environments. This material choice ensures extended service life and reliable performance under moderate radial and axial loads, facilitating efficient power transfer in a wide array of industrial machinery.

🧊 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 seating surface is clean and free of debris. 2. Carefully press the bearing onto the shaft using appropriate tooling, ensuring a uniform fit. 3. Secure the bearing in its housing with a retainer or interference fit, verifying axial and radial play.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardDIN 933

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 of the mounting surfaces leading to contamination.Thoroughly clean both the shaft and housing bore with a lint-free cloth and a suitable degreaser before installation.
Applying excessive force or shock load during installation, damaging raceways.Use a dedicated bearing press or a carefully controlled hammer and drift to apply force evenly on the ring being fitted.

Common Applications

  • Conveyor Systems
  • Electric Motors
  • Pumps and Compressors

⚠️ Engineering Warnings

  • Do not expose to extreme temperatures beyond the specified operating range.
  • Ensure proper lubrication is maintained to prevent premature 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, Electric Motors, Pumps and Compressors.

Technical Schematic

BALL BEARING CROSS-SECTIONISO 15 — Deep Groove Ball BearingBOREOD = 52mmd = 25mmWidth: 21mmDynamic 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.