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System
of
Measurement
Inch
Metric
Shaft
Diameter
0
.
0
4
"
3
/
6
4
"
0
.
0
4
7
"
0
.
0
5
5
"
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/
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6
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5
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6
4
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3
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3
2
"
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8
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1
6
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o
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3
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8
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4
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1
3
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"
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"
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o
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1
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8
"
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5
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5
6
4
"
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1
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8
"
0
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1
8
5
"
ID
0
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0
1
3
5
"
0
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0
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3
5
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1
"
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3
1
2
"
1
/
3
2
"
0
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0
3
2
"
Bearing
Type
Ball
Pivot
Plain
Roller
Width
3
/
6
4
"
1
/
1
6
"
5
/
6
4
"
3
/
3
2
"
7
/
6
4
"
1
/
8
"
9
/
6
4
"
5
/
3
2
"
1
1
/
6
4
"
3
/
1
6
"
0
.
1
9
6
"
7
/
3
2
"
0
.
2
2
"
1
/
4
"
1
7
/
6
4
"
For
Housing
ID
1
/
8
"
5
/
3
2
"
3
/
1
6
"
7
/
3
2
"
1
5
/
6
4
"
1
/
4
"
9
/
3
2
"
1
9
/
6
4
"
0
.
3
1
2
4
"
t
o
0
.
3
1
3
0
"
5
/
1
6
"
1
1
/
3
2
"
0
.
3
7
4
9
"
t
o
0
.
3
7
5
5
"
3
/
8
"
0
.
3
7
5
0
"
t
o
0
.
3
7
5
5
"
0
.
3
7
5
5
"
t
o
0
.
3
7
6
4
"
Bearing
Seal
Type
Open
Sealed
Shielded
Ball
Bearing
Profile
Flanged
Standard
With
Retaining
Ring
For
Load
Direction
Combined
Radial
and
Thrust
Combined
Radial,
Thrust,
and
Moment
Radial
Thrust
DFARS
Compliance
Specialty
Metals
Compliant
(252.225
-
7008)
Specialty
Metals
Compliant
(252.225
-
7009)
Specialty
Metals
COTS
-
Exempt
Not
Specialty
Metals
Compliant
Lubrication
Lubricated
Required
Not
Required
Unlubricated
Maximum
Temperature
Less
than
250°
F
250°
F
to
499°
F
500°
F
to
999°
F
1,000°
F
to
1,999°
F
2,000°
F
or
greater
Not
Rated
Shaft
Type
Acme
Lead
Screw
Hex
Keyed
Round
Round
with
Support
Rail
Screw
Spline
Square
Tapered
RoHS
Compliance
RoHS
3
(2015/863/EU)
Compliant
RoHS
3
(2015/863/EU)
Compliant
with
Exemptions
Not
Compliant
Minimum
Temperature
-
250°
F
or
less
-
249°
F
to
-
200°
F
-
199°
F
to
-
100°
F
-
99°
F
to
0°
F
Greater
than
0°
F
Not
Rated
Shaft
Mount
Type
Clamp
On
Concentric
Lock
Eccentric
Lock
Keyway
Machinable
Press
Fit
Set
Screw
Slip
Fit
Spring
Pin
Bearing
Trade
Number
3
8
5
2
5
2
-
2
Z
6
2
6
3
6
3
-
2
Z
7
4
7
4
-
2
Z
8
4
8
4
-
2
Z
8
5
8
5
-
2
Z
9
5
9
5
-
2
Z
1
0
4
Cage
Material
Aluminum
Brass
Bronze
Graphite
Plastic
Stainless
Steel
Steel
REACH
Compliance
REACH
(EC
1907/2006)
(06/27/2024,
241
SVHC)
Compliant
REACH
(EC
1907/2006)
(01/23/2024,
240
SVHC)
Compliant
REACH
(EC
1907/2006)
(06/14/2023,
235
SVHC)
Compliant
REACH
(EC
1907/2006)
(01/17/2023,
233
SVHC)
Compliant
REACH
(EC
1907/2006)
(06/10/2022,
224
SVHC)
Compliant
REACH
(EC
1907/2006)
(01/17/2022,
223
SVHC)
Compliant
Not
Compliant
Dynamic
Radial
Load
Capacity
Less
than
10,000
lb.
10,000
lb.
to
19,999
lb.
20,000
lb.
to
29,999
lb.
30,000
lb.
to
39,999
lb.
40,000
lb.
or
greater
Not
Rated
Ring
Material
Plastic
Stainless
Steel
Steel
Static
Radial
Load
Capacity
Less
than
10,000
lb.
10,000
lb.
to
99,999
lb.
100,000
lb.
to
199,999
lb.
200,000
lb.
to
299,999
lb.
300,000
lb.
or
greater
Not
Rated
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29,340 Products
Power Transmission
Ball
Bearings
Create
less
friction
than
other
bearings
for
use
at
high
speeds
3,070 products
Plain
Bearings
With
no
moving
parts,
the
simplest
type
of
bearing
6,572 products
Roller
Bearings
Support
higher
loads
than
ball
bearings,
but
run
at
lower
speeds
558 products
Linear
Bearings
Minimize
friction
as
parts
move
along
a
shaft
878 products
Bearing
Housings
Mount
your
own
bearings
in
place
64 products
Combination
Roller
Bearings
Support
both
radial
and
thrust
loads
with
a
single
bearing
10 products
Bearing
Washers
Adapt
needle
-
roller
thrust
bearings
for
use
on
unhardened,
unground
shafts
102 products
Bearing
Shaft
Liners
Adapt
precision
needle
-
roller
bearings
for
use
on
unhardened,
unground
shafts
25 products
Bearing
Nuts
Hold
bearings,
bushings,
pulleys,
and
gears
in
place
on
threaded
shafts
and
spindles
263 products
Bearing
Adapter
Sleeves
Close
gaps
between
your
bearing
and
shaft
for
a
tight
fit
29 products
Pivot
Bearings
Best
for
applications
that
require
small,
precise
oscillating
motion
with
limited
twisting
20 products
Track
Rollers
Support
and
carry
objects
as
they
move
along
conveyor
systems
702 products
Idler
Rollers
Guide
boxes
and
parts
as
they
pass
through
conveyor
systems
107 products
Drive
Rollers
Transmit
power
from
motors
to
systems
like
conveyors;
also
known
as
contact
wheels
and
feed
rollers
276 products
Idler/Drive
Rollers
Spin
freely
in
one
direction
on
conveyor
systems
and
lock
to
transmit
power
in
the
other
direction
6 products
Rod
Ends
Use
with
connecting
rods
to
support
loads
and
control
steering,
tensioning,
or
pivoting
motion
1,653 products
Rod
End
Inserts
Attach
to
rod
ends
to
increase
the
amount
of
misalignment
they
can
handle
29 products
Rod
End
Seals
Keep
dirt
out
and
lubrication
in
to
extend
the
life
of
rod
ends
16 products
Swivel
Joints
Handle
shaft
misalignment
where
ball
joint
rod
ends
won’t
fit;
also
known
as
spherical
bearings
136 products
Guide
Rail
Carriages
Carry
loads
along
guide
rails
on
accurate
and
repeatable
paths
in
automated
systems
383 products
Positioning
Slides
A
lead
screw
drives
the
carriage
for
accurate
positioning
in
laboratory
and
production
equipment
142 products
Linear
Motion
Slides
Move
loads
on
accurate
and
repeatable
paths
beyond
the
mounting
surface
119 products
Telescoping
Rails
Connect
multiple
rails
to
create
custom
positioning
tables
or
telescoping
slides
6 products
Pulley
and
Sprocket
Bushings
Mount
between
a
rotating
shaft
and
equipment
to
secure
the
shaft
and
reduce
vibration
721 products
Lead
Screws
and
Nuts
Components
travel
along
a
screw
with
broad,
square
threads
to
clamp
and
lift
heavy
loads
1,876 products
Lead
and
Ball
Screw
End
Supports
Brace
and
secure
the
ends
of
lead
screws
and
ball
screws
16 products
Ball
Screws
and
Nuts
Internal
ball
bearings
roll
on
screws
for
low
friction
when
moving
components
at
high
speeds
208 products
Shaft
Collars
Hold
and
position
parts
on
a
shaft,
or
limit
shaft
movement
43 products
Electric
Actuators
Push
and
pull
loads
with
more
precise
positioning
than
air
and
hydraulic
cylinders
103 products
Air
Slides
Convey
grippers,
printing
heads,
and
other
loads
back
and
forth
on
a
carriage
449 products
Bore
Reducers
Adapt
the
bore
of
a
component
to
a
smaller
size
for
mounting
on
a
shaft
31 products
Shaft
Couplings
Connect
two
shafts
to
transfer
rotary
motion
from
one
to
the
other
5 products
Splines
and
Spline
Bearings
Transmit
rotary
power
or
move
loads
along
the
length
of
splines
25 products
Ball
Screw/Splines
Transmit
rotary
power,
move
loads
along
the
shaft,
or
do
both
at
once
3 products
Roller
Screws
and
Nuts
More
contact
points
to
move
heavier
loads
than
ball
and
lead
screw
assemblies
8 products
Material Handling
Ball
Transfers
Install
in
arrays
to
create
platforms
for
conveying,
rotating,
and
positioning
heavy
objects
219 products
Ball
Transfer
Stops
Raise
to
hold
loads
in
place
and
lower
to
let
them
through
1 product
Ball
Transfer
Plates
Rest
on
flat
surfaces
to
create
platforms
for
conveying,
rotating,
and
positioning
heavy
objects
24 products
Ball
Transfer
Plate
Covers
Place
a
smooth
surface
over
ball
transfer
plates
so
small
items
won't
get
caught
between
18 products
Conveyor
Roller
Bearings
Replace
bearings
on
conveyor
rollers,
or
press
into
tubing
or
pipe
to
create
a
roller
41 products
Skate
Wheels
Replace
wheels
on
skate
wheel
conveyors
or
add
wheels
for
a
custom
setup
68 products
Conveyor
Belt
Take
-
up
Bearings
Use
with
take
-
up
frames
to
adjust
tension
on
conveyor
belts
14 products
Screw
Conveyors
Push
material
through
fixed
troughs
140 products
Conveyor
Belt
Take
-
up
Frames
Adjust
the
tension
on
conveyor
belts
by
extending
or
retracting
pulleys
28 products
Conveyor
Brakes
Slow
down
roller
conveyors
using
friction;
also
known
as
pallet
brakes
5 products
Wheel
Bearings
Reduce
friction
between
the
axle
and
the
wheel
for
smooth
movement
29 products
Wheel
Reducer
Bushings
Reduce
the
inside
diameter
of
a
bearing
to
fit
a
particular
axle
size
16 products
Pallet
Stands
Hold
pallets
above
the
floor
at
a
useful
working
height
3 products
Dollies
Move
furniture
and
large
equipment
1 product
Building and Machinery Hardware
Turntables
Rotate
to
reposition
machinery
and
equipment
123 products
T
-
Slotted
Framing
and
Fittings
The
most
versatile
system,
attach
fittings
along
the
continuous
slots
to
build
virtually
anything
119 products
Door
Tracks
Hang
panels
to
slide
over
openings
when
there’s
not
space
for
a
swinging
door
1 product
Overhead
Door
Rollers
Replace
the
rollers
on
garage
doors
and
other
overhead
doors
11 products
Grommets
Insert
into
holes
with
rough
edges
to
protect
wire,
cable,
and
cords
from
cuts
and
tears
24 products
Raw Materials
Steel
Strong,
machinable,
and
weldable
but
lacks
corrosion
resistance
293 products
Stainless
Steel
Resists
corrosion
and
chemicals
in
most
environments
151 products
Plastic
A
lightweight
alternative
to
metal
and
glass
289 products
Bronze
With
better
wear
resistance
than
copper
and
brass,
it’s
used
for
bearings,
gears,
and
pump
parts
498 products
Ceramic
Hard
and
wear
resistant,
it
also
withstands
corrosion
and
high
temperatures
52 products
Aluminum
Lightweight,
easy
to
machine,
and
corrosion
resistant
in
wet
environments
28 products
Glass
Clear
and
highly
heat
and
chemical
resistant;
often
used
in
sights,
lighting,
and
lab
equipment
5 products
Nickel
An
upgrade
from
stainless
steel
that
withstands
harsh
chemicals
and
acids
at
high
temperatures
5 products
Fabricating and Machining
Drill
Bushings
Fit
in
holes
to
guide
drill
bits
and
other
cutting
tools
for
precise
and
repeatable
holes
and
cuts
3,595 products
Rotary
Tables
Rotate
your
work
360°
for
easy
access
to
different
angles
6 products
Gear
and
Bearing
Pullers
Remove
gears
and
bearings
from
hollow
shafts
and
housings
148 products
Welding
Positioners
Mount
workpieces
for
circular
welds
4 products
Fastening and Joining
Shims
Level,
align,
and
adjust
spacing
on
fasteners,
shafts,
and
machine
components
3,871 products
The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)