Chains

chains
OPTI-Plus ®
Special-Alloy Stainless Steel
In collaboration with the steel industry,
Rexnord has developed a special exclusive
alloy of chrome steel with nickel. This results
in excellent strength properties, as well as
improved corrosion-resistance.
The most outstanding properties of Rex-OPTI-
Plus ® are its high resistance to wear, its
ground finish, and 40% higher strength.
In addition no "break in" is required thus
insuring maximum performance from startup.
Rex-OPTI-Plus ® is the preferred choice for
new or replacement installations.
HP TM
High Performance
Rex HP High Performance.
Longer sliding wear life, reduced chain
elongation, lowest available friction.
This material has the lowest coefficient of
friction, available on the market.
This material is especially suitable for
applications, where external lubrification is not
possible.
Operating temperature of Rex HP material:
in air (- 40 to + 80 °C)
in hot water (+ 65 °C)
Colour: dark grey.
Load carrying capacity
AISI 430 AISI 304 Rex-OPTI-Plus ®
Longer sliding wear life *
Ultimate strength N
19000
14000
10000
7600
Flight wear
Acetal D
Rex LF ®
Rex HP
Materials
Rex-OPTI-Plus ® has a 40% higher load
carrying capacity than standard ferritic alloys.
Longer sliding wear life
Chain elongation
(hinge wear)
0
812-815 802-805
Chain type
Time
AISI 303 AISI 304
Stainless Steel
AISI 430
Rex
-OPTI-Plus ®
An austenitic steel generally known as 18/8
steel offering excellent corrosion and oxidation
resistance.
Ideal for the food industry, dairy and cheese
production, beer production, and the
pharmaceutical industry.
Stainless steel is cold rolled and
responsive to magnets.
Reduced chain elongation *
Lowest available friction *
Coefficient of friction
% pitch
elongation
0,34
0,30
0,26
0,22
0,18
0,14
0,10
0
0
0,5 1 1,5
Millions of Ft. traveled
Rex HP high performance resin can
increase wear life up to 40%. Extensive
testing has proven that new HP material can
reduce wear as much as 40% over acetal and
25% over Rex LF ® acetal
0,1 0,2 0,4 0,6 0,8
Millions of chain cycles
Acetal D
Rex LF ®
Metal Glass Plastic Paper
Product material
Rex LF ®
*
= Graph shows comparative results at high-speed,
dry operation.
Rex HP
New technology virtually eliminates break-in
stretch and reduces elongation due to wear.
Through extensive testing, Rexnord has
achieved the optimum design to minimize
break-in wear while maximizing overall
performance.
Rex HP
4