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304 Stainless Steel Deep Groove Ball Bearing 77x70x38mm

Expert Overview

Engineered for resilience, this 304 stainless steel deep groove ball bearing offers superior corrosion resistance and robust load-bearing capacity in demanding industrial settings. Its precision construction ensures smooth, reliable operation.

StandardISO 9001
Material304 Stainless Steel
FinishGalvanized
GradeN/A
Inside Diameter77mm
Outside Diameter70mm
Width38mm

Detailed Engineering Specifications

Purpose-built for heavy-duty applications, this deep groove ball bearing features a 77mm inside diameter, a 70mm outside diameter, and a 38mm width. Constructed from premium 304 stainless steel, it exhibits exceptional resistance to corrosion, rust, and chemical attack, making it ideal for moist, humid, or chemically aggressive environments. The raceway geometry is optimized for high radial and axial loads, ensuring smooth, low-friction rotation. This bearing is designed for extended service life under strenuous operational conditions, supporting critical components in machinery where reliability is paramount.

🧊 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 bearing seat and shaft are clean and free from debris. Verify dimensional accuracy. 2. Carefully press the bearing onto the shaft or into its housing, applying even pressure. Avoid hammering directly on the bearing rings. 3. Confirm that the bearing rotates freely after installation. Check for any binding or unusual noise.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardISO 9001

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 or impact during installation, leading to brinelling or damage to the raceways.Use a bearing press or appropriate hydraulic/mechanical tools to apply even pressure during mounting. If pressing onto a shaft, heat the shaft slightly or cool the bearing to facilitate easier installation without damaging the bearing.
Incorrect lubrication, either insufficient or excessive, leading to premature wear or heat buildup.Consult the bearing manufacturer's specifications for the recommended lubricant type and quantity. Ensure consistent re-lubrication schedules are maintained based on operating conditions.

Common Applications

  • Food processing machinery
  • Chemical processing equipment
  • Marine applications
  • Industrial pumps and motors
  • Conveyor systems in corrosive environments

⚠️ Engineering Warnings

  • Avoid operating outside the specified temperature range for 304 stainless steel.
  • Ensure proper sealing is maintained to prevent contamination of the bearing raceways.

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 processing machinery, Chemical processing equipment, Marine applications, Industrial pumps and motors, Conveyor systems in corrosive environments.

Technical Schematic

BALL BEARING CROSS-SECTIONISO 15 — Deep Groove Ball BearingBOREOD = 52mmd = 25mmWidth: 38mmDynamic 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.