The document discusses different types of deep groove ball bearings produced by SKF including: single row, those with filling slots, stainless steel, double row, hybrid, and those for high temperature applications. It provides details on the characteristics, uses, and variations of each type. Deep groove ball bearings are simple and durable bearings that can handle both radial and some axial loads making them widely used.

1. Applications of deep groove ball bearings are particularly broad scope. Therefore, there are
many varieties and sizes of them. SKF standard series is composed of the following types:
Single row deep groove ball bearings
Single row deep groove ball bearings with filling slots
Stainless steel deep groove ball bearings
Double row deep groove ball bearings
Hybrid deep groove ball bearings
Deep groove ball bearings for high temperature applications
Cam roller
1, single row deep groove ball bearings
Single row deep groove ball bearings are with particularly wide application. This type of bearing
is designed to be simple for non-separable, suitable for high speed, even for very high speed and
very durable in operation, almost no maintenance. Bearing Raceway of deep groove and the high
tie between raceways and balls, deep groove ball bearings in addition to radial loads, can
accommodate axial loads in both directions, even at high speeds as well.
Single row deep groove ball bearings are one of the most widely used bearings. Therefore, SKF
has many varieties and sizes:
Open basic design bearings
Sealed bearings
ICOS oil sealed bearing units
With open ring groove of bearings, bearings with snap rings rings with or without opening.

2. Product family also includes bearings with a tapered bore.
2, deep groove ball bearings with filling slots
There is one filling slots on the ring and the outer ring of single row deep groove ball bearings
with filling slots. Bearings with filling slots have a higher radial load capacity than bearings
without filling slots, but their axial load carrying capacity is small. Moreover, this bearing should
not be at the same standard bearings under the same high speed running. Depending on different
applications, deep groove ball bearings with filling slots can be caged or without cage.
Small dimensions of these bearings are mainly used in automobile gear box, standard model
identification, with cage.
Applications designed for heavy loads and low speed rotation of large bearings without cage.
3, stainless steel deep groove ball bearings
Stainless steel deep groove ball bearings can withstand moisture and corrosion caused by a
number of other media. This type of single row deep groove ball bearings the same as standard
deep groove ball bearings, bearing raceway with a deep ditch, Compatibility between raceways
and balls is extremely high. The bearings is without filling slots, in addition to radial loads, also
subjected to bi-directional effects of axial loads, even at high speeds as well.

3. Operating characteristics of stainless steel deep groove ball bearings are the same as
conventional steel deep groove ball bearings, but the load carrying capacity is low.
The bearings are provided with an open and sealed design, shaft sizes from 1 to 50 mm.
Model prefix w stainless steel bearings, for example, W626-2Z.
4, double row deep groove ball bearings
Double row deep groove ball bearings echoed with single row deep groove ball bearings in the
design. These bearings have deep uninterrupted raceways and high tie between the balls and
raceways. In addition to radial loads, they are also subjected to bi-directional effects of axial
load.
Double row deep groove ball bearings are ideal for single bearings low bearing load of the
bearing arrangement. Outer diameter and inner diameter of the same case, the double row
bearings are slightly wider than single row bearings, but substantially higher than the load
capacity of the 62 and 63 series single row bearings.
5, hybrid deep groove ball bearings

4. Standard ceramic hybrid bearings are mainly single row hybrid deep groove ball bearings. The
reason is clear: deep groove ball bearings are the most widely used bearing type, particularly in
the motor. Close fit between deep raceway grooves and roller, makes it able to withstand radial
loads and axial loads in both directions.
inner ring diameter of Hybrid deep groove ball bearings varies from 5 to 110mm, and can meet
the needs of most applications. Larger bearings can be customized.
6, deep groove ball bearings for high temperature applications
The bearings are without filling slots, in addition to radial loads, can accommodate moderate axial
loads. This is characterized by radial internal clearance of the bearing and is equipped with a
special cage. Large clearance is four times the C5 clearance, even in rapid cooling can prevent
bites in the bearing. All surfaces of the bearing and the housing are manganese phosphate. It has
antiseptic effect, and improves operational performance.
High temperature deep groove ball bearings are with a cylindrical bore, there are five different
forms, as described follows.
VA201, for the most common applications

5. VA201 bearings are without seal, with pressed steel cage. Using poly (alkyl-Asian) glycol/graphite
mixture lubrication and can be used from-40 to + 250 ° c temperature range. At the time of high
temperatures above + 200 ° c, suitable for dry lubrication.
2Z/VA201 with shield
2Z/VA201 has the same design as the VA201 bearings. There are shields on both sides to prevent
solids from entering. In addition, the bearing load of poly (alkyl-Asian) glycol/graphite mixture
amount is twice times the open VA201 bearings.
2Z/VA208-used in high temperature
Bearing 2Z/VA208-equipped with a segmented cage of graphite,-150 to + 350 ° c temperature of
the environment. Graphite in the paragraphs to separate the bowls, at the same time provides
the necessary lubrication. Bearings are equipped with two shields, axial guide cages and prevent
solids from entering. When cage is rotated graphite powder released particles provide adequate
lubrication for the bearing.
Another advantage of these bearings are good environmental performance. Even at the highest
temperature, and no dangerous gases or steam comes out.
-2Z/VA228, can be used for the highest requirements

6. 2Z/VA228-bearing is SKF high-temperature applications in the "best". Pure graphite with "ball"
cage, the cage has opened up more areas of application for this high temperature bearings.
Spherical cage is a unique invention of SKF, allows running at speed of up to 100r/min.
2Z/-VA216 for corrosive environments
When corrosive in application environments are especially strong, 2Z/VA216 design bearings are
recommended. The bearings are filled with milky white all purpose grease this grease with a
mixture of PTFE based fluorinated polyether oil that can be used from-40 to + 230 ° c
temperatures. Bearing design and 2Z/VA201 are the same in other areas.
Under normal circumstances, the lubricant in the bearing filled free space and 25. On request,
you can provide other fill level.
Deep groove ball bearing General by pair rings a group keep frame, a group just ball composed
and a group keep frame constitute, deep groove ball bearing type code for 6. is production most
general, application most broad of category bearing. deep groove ball bearing structure simple,
using convenient, is production bulk maximum, and bear must of axis to load. Dang bearing of
radial tour gap increased Shi, has corner contact ball bearing of features, can bear larger of axis
to load.
Deep groove ball bearings are mainly used under purely radial load, can bear both radial and
axial loads, when it is only when you take pure radial loads, contact angle is zero. When a deep
groove ball bearing with larger radial internal clearance are, with angular contact bearings, can

7. withstand greater axial loads. small coefficient of friction of deep groove ball bearings, speed
limit is also very high, especially in axial load is a lot of fast-moving conditions, Deep groove ball
bearing than thrust ball bearing more has superiority. and size same of other class bearing
comparison, this class bearing friction factor small, limit speed high. in speed higher not used
thrust ball bearing of situation Xia available the class bearing bear axis to load. deep groove ball
bearing mounted in axis Shang, can makes axis or shell of axis to displacement limit in bearing of
axis to tour gap range within. While, dang shell hole and axis (or outer ring internal ring) relative
has tilt Shi, (not over 8-16 according to tour gap determines) You can still work properly.
However, that tilt, is bound to reduce the service life of the bearing.
Check more details at http://www.ziso.cn/ or more products
at http://www.hisupplier.com/a-single-row-ball-bearing/.