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     Lamtuf Fabric  Bearings for Steel Re-Rolling Mills

"LAMTUF" Moulded Fabric Bearings are made with Cotton Fabric Impregnated with Phenolic Resins. This Impregnated material is subjected to high pressure and Temperature, in precisely designed tools to maintain the proper shape and size as per the customers requirement.

Physical Properties of Fabric Bearings:
Properties Units Average
Test Results
Method Of Testing
Compression Strength   -   - IS-1998-1962
Flat wise Kgf/cm2 3150 IS-1998-1962
Edge wise Kgf/cm2 1850 IS-1998-1962
Shear Strength Kgf/cm2 1365 IS-1998-1962
Tensile Strength Kgf/cm2 650 IS-1998-1962
Impact (Izod) Kgf/cm/cm of notch 15-20 IS-1998-1962
Hardness Shore D   - 85-95 ASTM-D-2240
Specific Gravity Gms/cc 1.35/1.381 ASTM-D-792
Water Absorption:
Properties Units Average
Test Results
    Method 
Of Testing
(24hrs 1/8 thick) % 1.82%   ASTM-D-570
Bond Strength Kg 750Kgs   ASTM-D-229
Coefficient of Friction:
Properties Units Average
Test Results
    Method 
Of Testing
With Steel   - 0.003-0.006   -
Safe Temperature:
Properties Units Average
Test Results
    Method 
Of Testing
Permanent oC 125   -
Short Period oC 150   -
** THE FABRIC BEARING FOR SPECIAL APPLICATION HAVING IMPACT STRENGTH OF 35 KG /CM /CM CAN ALSO BE MANUFACTURED ON A SPECIAL REQUEST.
Special Advantage & Characters:
1.

The very low coefficient of friction, when wet, it enables reduction in power consumption up to 50% to 70%.

2.

The resistance to wear of this Fabric Bearings is greater than that of Bronze or White Metal (Non Ferrous), which provides longer service.

3. Its large loading capacity brings about higher efficiency of the machine.
4.

Water, the cheapest lubricant, can be used on the Bearings thus dispensing with the costly use of lubricating oils and/or greases. If necessary, oil may be used on these Bearings that will surely give still higher efficiency than when the same is used on other bearings. Hence Lubrication cost is cut down.

5.

Its ability for water lubrication affords the convenience of using at these parts, where oil lubricated bearings cannot be use.

6.

Being moulded out of Phenolic Fabric as per customer requirement, the surface of bearing does not require costly machining before it is fitted on the Roll stands.

7.

Light weight and easy to handle. The specific gravity of Phenolic Fabric is 1.36 which is
approximately. 1/5th of any non ferrous metals.

8. High resistance to water, oil and acid.
9.

Thermal and Electrical Insulation: "LAMTUF" Fabric is an excellent insulator of heat and electricity.

10.

Increased durability and efficiency: Machines using "LAMTUF" Fiber Bearings have longer servicesperformance and high performance and high production efficiency.

11.

These Fabric Bearings does not harm roll necks in comparison to Non -Ferrous Metal bearing, because material used here is Phenolic Impregnated Cotton Fabric which Provides lower coefficient of friction there by increasing the roll neck life.

Coefficient of friction - Comparison.
Bronze Bearing (Non - Ferrous) - 0.06 - 0.11
Phenolic Fiber Bearing - 0.004 - 0.006.
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