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INA
YRTSM260
Axial/radial roller bearing YRTSM260
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Main Dimensions & Performance Data
d
260 mm
Bore diameter
0 mm
Bore diameter upper tolerance
-0.018 mm
Bore diameter lower tolerance
D
385 mm
Outside diameter
0 mm
Outside diameter upper tolerance
-0.02 mm
Outside diameter lower tolerance
H
55 mm
Height
Cr
110,000 N
Basic dynamic load rating, radial
C0r
305,000 N
Basic static load rating, radial
Ca
173,000 N
Basic dynamic load rating, axial
C0a
1,050,000 N
Basic static load rating, axial
nG
910 1/min
Limiting speed
≈m
17.514 kg
Weight

Mounting dimensions
J
280 mm
Pitch circle diameter fixing holes in inner ring
J1
365 mm
Pitch circle diameter fixing holes in outer ring
d1
9.3 mm
Fixing holes diameter inner ring
d2
15 mm
Counterbore diameter of fixing holes
a
8.2 mm
Counterbore depth of fixing holes
34
Quantity of fixing holes inner ring
d3
9.3 mm
Fixing holes diameter outer ring
33
Quantity of fixing holes outer ring
n
36
Pitch quantity
t
10 °
Pitch separation angle
G
M12
Threaded extraction hole
3
Quantity of threaded extraction hole
MA
34 Nm
Screw tightening torque
2
Quantity of retaining screws
t1
6 µm
Axial and radial runout, measurement standard; Measured on mounted bearing, with ideal adjacent construction.

Dimensions
H1
36.5 mm
Height contact face outer ring
0.05 mm
Height contact face outerring H1 upper tolerance
-0.07 mm
Height contact face outerring H1 lower tolerance
H2
18.5 mm
Height contact face outer ring
HM
13.5 mm
Height shaft washer
D1 max
347 mm
Maximum diameter inner ring
DM
343.69 mm
Diameter of dimensional scale on shaft locating washer
C
18 mm
Width of outer ring

Temperature range
Tmin
-30 °C
Operating temperature min.
Tmax
120 °C
Operating temperature max.

Additional information
caL
5,400 N/µm
Axial rigidity of bearing position
crL
1,600 N/µm
Radial rigidity of bearing position
ckL
67,000 Nm/mrad
Tilting rigidity of bearing position
caL
16,800 N/µm
Axial rigidity of rolling element set
crL
5,800 N/µm
Radial rigidity of rolling element set
ckL
201,000 Nm/mrad
Tilting rigidity of rolling element set
Mm
1,422 kg*cm2
Mass moment of inertia for rotating outer ring
Mm
2,074 kg*cm2
Mass moment of inertia for rotating inner ring
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