6311N
Higher load capacity than the 6200 series for the same bore size. Used where heavier radial loads are expected.
SKF631155 × 120 × 29mm
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$54.69
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Match Details
The specifications and details for why this match is correct.
Specifications
| Bore diameter (d) | 55 mm |
| Outer diameter (D) | 120 mm |
| Width (B) | 29 mm |
| Dynamic load rating (C) | 74.1 kN |
| Static load rating (C₀) | 45 kN |
| Weight | 1340 g |
| Max speed (grease) | 8,000 rpm |
| Max speed (oil) | 12,000 rpm |
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Cross-References
Every way this part is identified across brands and catalogs.
Tier-1 Brand Equivalents
Legacy & Proprietary Numbers
SKF6311-2RS1/C3Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNSK6311C3EVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeKOYO63112RSVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangePEER6311-2RLDVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSTEYR6311A/2RS1/C3Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNTN6311LLUVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeRHP6311-2RSVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSNR6311NVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFBC6311PVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFEDERAL1311Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFLT6311NVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNWG6311.2ZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeZWZ6311-2RSVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFafnir311KInferred — Generated from Fafnir-pattern decoder · last checked last month · dimensional matchMGM6311.2ZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeMRC311-SInferred — Generated from Fafnir-pattern decoder · last checked last month · dimensional matchFederal1311FFInferred — Generated from Fafnir-pattern decoder · last checked last month · dimensional matchHOOVER7311Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNew Departure88211Inferred — Generated from Fafnir-pattern decoder · last checked last month · dimensional matchCITR620214Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFIAT73012085Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeROLLWAY6311NRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeROVER13/17Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeZIL120-1701190Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSKF6311-2RSJEMHigh confidence — Schaeffler Brand Interchange · last checked last month · near equivalentNSK6311CMHigh confidence — Schaeffler Brand Interchange · last checked last month · near equivalentKOYO6311C3Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangePEER6311-2RLD-C3Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSTEYR6311A/2Z/C3Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNTN6311LUVerified — Schaeffler Brand Interchange · last checked last month · perfect interchange
Show all 108 cross-references
RHP6311NVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSNR6311NJ30Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFBC6311PPVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFEDERAL1311FVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFLT6311NRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNWG6311NVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeZWZ6311NVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFafnir311KDInferred — Generated from Fafnir-pattern decoder · last checked last month · dimensional matchMGM6311NVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeMRC311-SFFInferred — Generated from Fafnir-pattern decoder · last checked last month · dimensional matchFederal1311SFInferred — Generated from Fafnir-pattern decoder · last checked last month · dimensional matchHOOVER7311GVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNew Departure88511Inferred — Generated from Fafnir-pattern decoder · last checked last month · dimensional matchSKF6311-2Z/C3Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNSK6311DDUVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeKOYO6311DVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangePEER6311-C3Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSTEYR6311C4Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNTN6311NRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeRHP6311NRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSNR6311NRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFBC6311PSRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFEDERAL1311FFVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFLT6311ZNRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNWG6311ZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeZWZ6311-RSVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFafnir311KDDInferred — Generated from Fafnir-pattern decoder · last checked last month · dimensional matchMGM6311ZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeMRC311-SZZInferred — Generated from Fafnir-pattern decoder · last checked last month · dimensional matchSKF6311-2ZJEMHigh confidence — Schaeffler Brand Interchange · last checked last month · near equivalentNSK6311DDUC3EVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeKOYO6311DDVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangePEER6311-ZDVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSTEYR6311NRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNTN6311ZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeRHP6311RSVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSNR6311ZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFBC6311SRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFEDERAL1311GFVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeFLT6311ZZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNWG6311ZNVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeZWZ6311-ZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSKF6311/C3Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNSK6311DUVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeKOYO6311NVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangePEER6311-ZD-C3Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSTEYR6311ZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNTN6311ZNRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeRHP6311ZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSNR6311ZZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSKF6311/C4Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNSK6311DUCMHigh confidence — Schaeffler Brand Interchange · last checked last month · near equivalentKOYO6311NRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangePEER6311-ZZDVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSTEYR6311Z/C3Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNTN6311ZZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSKF6311JEMVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNSK6311MVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeKOYO6311RSVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangePEER6311-ZZD-C3Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSTEYR6311ZNRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSKF6311M/C3VL0241Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNSK6311NVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeKOYO6311ZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSKF6311NRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNSK6311ZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeKOYO6311ZNRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSKF6311NRJEMVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNSK6311ZCMHigh confidence — Schaeffler Brand Interchange · last checked last month · near equivalentKOYO6311ZZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSKF6311-RS1Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNSK6311ZNRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSKF6311-RSJEMVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeNSK6311ZZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSKF6311-ZVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSKF6311-Z/C3Verified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSKF6311-ZJEMVerified — Schaeffler Brand Interchange · last checked last month · perfect interchangeSKF6311-ZNRVerified — Schaeffler Brand Interchange · last checked last month · perfect interchange
Technical Details & Applications
Specification variations and common equipment types.
Internal Clearance
Normal Clearance (CN)
Standard radial internal clearance. Suitable for most applications under normal operating conditions.
TemperatureUp to ~70°C operating temperature
Seal Type
Open (No Seal)
No seals or shields. Allows external lubrication and cooling. Lowest friction, highest speed capability.
Avoid forDirty, dusty, or wet environments. Applications without planned lubrication maintenance.
Examples
- Machine tool spindles
- Gearboxes with oil bath lubrication
- High-speed precision equipment
Where This Bearing Is Used
Electric motorsPumps and compressorsConveyor rollersAgricultural machineryFans and blowersGearboxesPower transmission equipmentWashing machinesPrinting pressesHVACAutomotive alternators and A/C compressors
Alternative Parts
Options if this exact part isn't what you need.
Same Geometry, Different Configuration
| SKF Part Number | Seal Type | Clearance |
|---|---|---|
| 6311 | Open (No Seal) | CN |
| 6311 C3 | Open (No Seal) | C3 |
| 6311-2Z | ZZ | CN |
| 6311-2Z C3 | ZZ | C3 |
| 6311-2RS1 | 2RS | CN |
| 6311-2RS1 C3 | 2RS | C3 |
Related Bearings
Adjacent sizes and cross-series bearings from our catalog.