779D

Part Number 779D
System of Measurement Inch
Type Cones
Bearing Part Number 779D-772
, 779D-772A
, 779D-773
Bearing Type Roller
Roller Bearing Type Tapered
For Load Direction Combined
Construction Double Row
Seal Type Open
Series 775
Bore Dia 3.875″
Bore Dia Tolerance +0.001″ to 0
Double Cone Width 4.03″
Double Cone Width Tolerance +0.003″ to -0.01
Cone Backface ToClear Radius 0.06″
Cone Frontface Backing Diameter 4.41″
Cone Backface Backing Diameter 4.41″
Cage Cone Frontface Clearance 0.07″
Static Radial Load 111000 lbf
Roller Material Chrome Steel
Cage Material Steel
Dynamic Radial Rating(90 Million Revolutions) 20200 lbf
Dynamic Radial Rating(Two Row 1 Million Revolutions) 135000 lbf
Dynamic Radial Rating(1 Million Revolutions) 77800 lbf
Dynamic Thrust Rating(90 Million Revolutions) 13300 lbf
Dynamic Radial Rating(Two Row 90 Million Revolutions) 35100 lbf
Heat Generation Factor(Rib Roller End)(G2) 41.3
Heat Generation Factor(Roller Raceway)(G1) 227
Temperature Range -30° to 110 °C
ABEC Rating ABEC-1
Radial Clearance Standard (Available in C3/C4/C5)
RoHS Compliant
REACH Compliant

Guaranteed Safe Checkout

Description

Design Features of 779D Bearing

779D bearing features two tapered roller assemblies combined in a single cone, providing stable support for heavy radial and axial loads. 779D double cone width is 4.03″. Its bore dia is 3.875″. This design enhances load distribution, making it ideal for applications requiring precise alignment and durability.

 

What Benefits Can 779D Bearing Provide?

  • High Load Capacity: It supports heavy radial and axial loads, making it suitable for demanding applications.
  • Improved Stability: The dual tapered rollers enhance balance and reduce deflection under load.
  • Durability: Its robust design ensures longer life and less maintenance.
  • Precise Alignment: The cone structure aids in accurate alignment, which reduces wear on machinery.

 

What Can 779D Bearing Be Used for?

  • Automotive: Commonly found in wheel hubs, transmissions, and differentials for supporting heavy loads.
  • Industrial Machinery: Ideal for conveyor systems, gearboxes, and other equipment requiring high load capacity and stability.
  • Double Row Equipment: Used in heavy machinery like excavators and bulldozers to handle demanding conditions.
  • Mining Equipment: Suitable for harsh environments due to its durability and ability to support heavy radial and axial loads.
  • Aerospace: Utilized in landing gear and other components where precision and reliability are crucial.

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