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BNTB3681224 Four Row Cylindrical Roller Bearing ISO9001 approval

Minimum Order Quantity : 1 Price : USD
Packaging Details : Single box Delivery Time : 7-35 days
Place of Origin: LUOYANG Brand Name: MONTON
Certification: ISO9001 Model Number: BNTB3681224

Detail Information

High Light:

spherical roller bearing


sealed cylindrical roller bearings

Product Description


Size: 180*406.4*224

weight: 170KG

Type:Sendzimir Mill Bearing


Sendzimir Mill Bearing

Backing up roller bearing also called Senzimir mill bearings,it was specially designed for cold rolling mills, Most are used to process high grade steel strip and non-ferrous metal strip ,but can also be used for other applications e.g. straightening or bending machines.
1)Structure & Feature:Backing bearings are roller bearings having a particularly thick-walled outer ring and can be mounted on stationary support shafts to form back-up or straightening rolls. The forces from the work rolls are transmitted via the support shaft and a system of support saddles to the roll or machine stands.

2)Processing accuracy:running accuracy must be P4 at least,dimensional accuracy no less than P5;
were classified in three to seven section height groups each of 3μm to 5μm;
were suitable for high strip speeds, up to 1000 m/min depending on operating conditions.
We are manufacturing this bearing in 3 structures.


Sendzimir Mill Bearings


General features
Outer rings: in special bearing steel. Isothermal hardening is foreseen in case of big dimensions in order to improve bearings toughness and strength.
On request: isothermal hardening or case hardening also on smaller sizes.
The outer ring is conveniently profiled to reduce the stress generated by the contact with the work rolls.
Inner rings: in special bearing steel, available with lubrication holes.
Rollers: with modified logarithmic profiles to improve the distribution of stresses.
Each bearing is measured and identified according to a specific selection of the outer ring’s thickness H.
This refers to the alignment of the outer ring and inner ring.
The maximum thickness of outer and inner rings is marked on the rings sides.
On request, the bearings can be packed in a sequence of assembly and in groups according to the customer’s requirement.








BNTB3681224 Four Row Cylindrical Roller Bearing ISO9001 approval 1

BNTB3681224 Four Row Cylindrical Roller Bearing ISO9001 approval 2

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