4T-30207 C3

OpenC3Tapered Roller BearingVerified match
FAG30207-XL C3

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Specifications

Bore diameter (d)35 mm
Outer diameter (D)72 mm
Width (B)18.25 mm
Dynamic load rating (C)30.6 kN
Static load rating (C₀)17.8 kN
Weight229 g
Max speed (grease)6,600 rpm
Max speed (oil)8,400 rpm

Why This Match Is Correct

Exact dimensional match (bore, OD, width)
Load ratings within tolerance
Seal type verified via manufacturer tables
Speed rating compatible

Equivalents Across Brands

BrandPart NumberSealClearanceStatus
FAG30207-XL C3OpenC3Verified
NSKHR30207J C3OpenC3Verified
NTN4T-30207 C3OpenC3Current
SKF30207 J2/Q C3OpenC3Verified
Timken30207 C3OpenC3Verified

Seal Type

Open (No Seal)

No seals or shields. Allows external lubrication and cooling. Lowest friction, highest speed capability.

Best forClean environments with external lubrication systems. High-speed applications where heat dissipation matters.
Avoid forDirty, dusty, or wet environments. Applications without planned lubrication maintenance.
Examples
  • Machine tool spindles
  • Gearboxes with oil bath lubrication
  • High-speed precision equipment

Internal Clearance

Greater Than Normal (C3)

Increased radial internal clearance. Required when bearings operate at elevated temperatures or with tight shaft fits.

Best forHigh-temperature applications. Tight interference fits. Electric motors with frequent starts/stops.
Temperature70-150°C operating temperature

Where This Bearing Is Used

Medium (35mm bore) — Typical Uses

  • Industrial electric motors (10-50 HP)
  • Gearboxes and speed reducers
  • Heavy-duty pumps
  • Conveyor systems
  • Machine tool spindles
  • Automotive wheel hubs
  • Centrifugal fans
  • Compressors

Other Variants Available

Same bearing geometry — different seal and clearance configurations.

SKF Part NumberSeal TypeClearance
30207 J2/QOpen (No Seal)CN
30207 J2/Q C3Open (No Seal)C3

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