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21mm ID x 49mm OD x 35mm Deep Groove Ball Bearing - Carbon Steel

Expert Overview

This robust Deep Groove Ball Bearing, crafted from high-grade carbon steel, offers superior load-bearing capacity and smooth rotational performance for critical power transmission systems.

StandardASME B18
MaterialCarbon Steel
FinishBlack Oxide
GradeN/A
Inside Diameter21mm
Outside Diameter49mm
Width35mm

Detailed Engineering Specifications

Specified by design engineers worldwide, this 6305-2RS equivalent Deep Groove Ball Bearing features a precise 21mm bore, a 49mm outer diameter, and a 35mm width, ensuring excellent fitment in standard housings. Constructed from hardened carbon steel, it provides exceptional durability, wear resistance, and the ability to withstand significant radial and axial loads. Its design minimizes friction, contributing to increased operational efficiency and extended service life in demanding industrial environments. Ideal for applications requiring reliable, long-term performance under moderate to heavy duty cycles.

🧊 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 shaft and housing are clean and free from debris. 2. Carefully press the bearing onto the shaft, applying even force to the inner ring. 3. Secure the bearing in the housing using appropriate retaining methods, ensuring proper axial and radial support.

Equivalent Standards (Cross-Reference)

Standard SystemDesignation
ISO EquivalentISO 9001:2015 Mfg
DIN EquivalentIndustry Standard
Primary StandardASME B18

Mechanical Properties

Tensile StrengthStandard Commercial Spec
Yield StrengthStandard Commercial Spec
HardnessVaries by specific batch

Chemical Composition

Carbon (C)0.28 - 0.55%
Manganese (Mn)0.60 - 0.90%
Phosphorus (P)0.04% max
Sulfur (S)0.05% max

Temperature & Environment Rating

Min Operating Temp
-20°F (-29°C)
Max Continuous Temp
400°F (204°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 / ExposedModerate
Marine / SaltwaterNot Recommended
Chemical / AcidicNot Recommended

Common Mistakes & How to Avoid Them

❌ Mistake✅ Correct Approach
Applying force to the outer ring during shaft mounting.Always apply mounting force exclusively to the inner ring when installing on a shaft to prevent brinelling of the raceways.
Insufficient lubrication during installation or operation.Ensure the bearing is adequately lubricated according to manufacturer specifications for the operating environment to prevent premature wear.

Common Applications

  • Electric Motors
  • Industrial Gearboxes
  • Conveyor Systems

⚠️ Engineering Warnings

  • Avoid exposing the bearing to excessive shock loads or extreme temperatures beyond its operational limits.
  • Improper mounting or handling can lead to premature failure and reduced bearing life.

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 Carbon Steel.

Q: What are the main applications?

A: Electric Motors, Industrial Gearboxes, Conveyor Systems.

Technical Schematic

BALL BEARING CROSS-SECTIONISO 15 — Deep Groove Ball BearingBOREOD = 52mmd = 25mmWidth: 35mmDynamic 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.