4TRS686A Tapered Roller Bearing (Size: 685.8x876.3x355.6mm)
The 4TRS686A bearing is a Tapered Roller Bearings with an inner diameter of 685.8 mm , an outer diameter of 876.3 mm, a width of 355.6 mm. It typically uses Standard grade precision tolerances and features a Steel cage, Chrome Steel rings. Its dynamic radial rated load is approximately 7690 (kN), its static radial rated load is approximately 16300 (kN). Sealed type, Nitrile Rubber. together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Application: Low- and medium-speed rolling mills
4TRS686A Tapered Roller Bearing, Sealed Type, Four Row, High Load Capacity, High Speed, Low Friction, and Long Service Life.
Size: 685.8x876.3x355.6mm
Inside Diameter (d): 685.8mm
Outside Diameter (D): 876.3mm
Width (T): 355.6mm
Ring Material: Chrome Steel
Roller Material: Chrome Steel
Cage Material: Steel
Number of Row: 4
Working Temperature: -40°C to 120°C
Tolerance Class: Normal
HS Code: 8482500090
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Sealed Type Four Row Tapered Roller Bearing |
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Bearing No. |
Main Dimensions (mm) |
Basic Load Ratings (kN) |
Weight |
||||
|
d |
D |
T |
W |
Cr |
Cor |
kg |
|
|
4TRS686A |
685.8 |
876.3 |
355.6 |
352.425 |
7690 |
16300 |
520 |
The four row tapered roller bearing with cylindrical bore is designed to maximize the load capacity with minimum space, and is widely used for roll neck of lower, medium speed rolling mills.
The bearing of this type is made up of one double outer ring, two single row outer rings, two double inner rings and inner ring spacer/outer ring spacer.
Since each component is not interchangeable, it is necessary to assemble each component as specified with care taken to the matching marks marked on the bearing.
Typical Applications:
Because of their rugged design, these bearings are almost exclusively used in heavy industrial and manufacturing equipment. They are a staple component in:
Rolling Mills: Used on the roll necks where extremely high radial loads and continuous stress occur.
Metal Processing Equipment: Heavy-duty gearboxes and screw-down mechanisms.
All the bearings we are offering are direct factory price, fast delivery, perfect quality. For more bearings, please feel free to mail us at [email protected] or contact us by Wechat or Whatsapp at +8618062246726.
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