Double Row Full Complement Cylindrical Roller Bearings Nncfseries - China
price: contact company for price
SBI Full Complement Cylindrical Roller Bearings (Full Complement
Bearings) are designed to carry heavy load.
Comparing with traditional
bearings with cage, full complement cylindrical bearings have much
higher loading capacity.
The radial cross section of the type of
bearings is very small.
So it can be very space – saving.
However the
limiting speed of the bearings is relatively lower.
All the multi – row
cylindrical roller bearings are with a lubrication groove and one nipple
on the outer ring.
A minimal load is required (C/P <25) for the bearings
to run well in succession.
Otherwise wear may happen when lubrication is
running out or rotating speed is high.
NCF•••V type Full Complement
Cylindrical Roller Bearings are with a single rib on one side of the
outer ring.
A snap ring is on the other side which makes the shaft be
stationary in single direction.
The axial gap “s” inside the bearings
ensures the axial displacement of shaft to the bearing housing case.
For
this “s” value, please consult SBI technical service.
NJ•••V type Full
Complement Cylindrical Roller Bearings is applied under very high loads
and slow rotating speed conditions.
The rollers are self – locked and
will not fall apart even if the inner ring is removed.
Therefore, the
mounting and dismantling of the type of bearings are convenient.
The
bearings can carry axial load in one direction.
NNF•••2LSNVY type double
– row Full Complement Cylindrical Roller Bearings are with two
inseparable inner rings joined by a holding ring.
There is a rib in
middle of the outer ring.
The bearings can carry axial load in both
directions and be used ad stationary bearings.
As the distance between
the two rows of rollers is big, the bearings can also take some
overturning moment.
On the outer ring there are two snap grooves for
axial orientation.
This type of bearings is with contact seals on both
sides and with lithium based grease.
The operation temperature limit for
the bearings is from -40 to 80℃.
The kind of bearing is generally
free of maintenance under some certain conditions.
But in case that
there is vapor or dust, and the bearings are running in medium or high
speed, supplement lubricant is absolutely necessary.
If using rare oil
as lubricant, the seals should be removed and all the grease with the
bearings be washed out.
In that case, the limit rotating speed can be
increased 30%.
The dimension tolerance and geometry deviation of the
type of bearings are in accordance with Grade P0 of GB 307.1-1994(ISO492-
1994).
And the normal radial clearance is with group C0 - Bearings with
normal radial clearance of Group C2 or C4 are also available.
In that
case some suffix should be added to the bearing code.
For example,
bearing with group C3 are generally selected for the plastic extruders.
If you have requirement for higher grade bearings, please contact SBI
service.
For mounting tolerance, you can refer to the selection
principle of housing tolerance and shaft tolerance limits.
Some certain
axial loads are allowed for the type of bearings.
In that case,
sufficient lubrication is a premise.
In the single direction stationary
bearings and stationary bearings, the rib that carrying axial load must
be fully supported.
Double Row Full Complement Cylindrical Roller Bearings Nncfseries
Please see our contact information below
Company Contact:
- Posted By: SBI SPECIAL BEARING CO.,LTD
- Phone: 8637964122001
- Address: WEISI ROAD,LUOYANG INDUSTRIAL PARK,XIGONG,LUOYANG,, luoyang , China
- Email:
- Website: http://www.sbibearings.com
Published date: September 28, 2012
- Business Description: With highly advanced technology, Luoyang SBI Special Bearing Co., Ltd has been dedicated to providing a wide variety of bearing solutions for industries all around the world since its establishment in 1989 - SBI set up a high tech R&D Center at the beginning of its foundation.
So far, SBI has been able to integrate Enterprise Standard (SQ) with both domestic and international standard as ISO (International Organization for Standardization), GB (China), EN (European Standard), DIN (Germany standard), ABMA (American standard), JISC (Japanese Standards) etc, and produce exclusive and special bearings with strong R&D power.
More than 600 new bearings are developed every year, with a more 5 patents increasing every year.
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