YRTSM325

Axial/radial roller bearing

Axial/radial bearings, double direction, screw mounting, for higher speeds, with integrated angular measuring system

Two retaining screws

Screw counterbores open (in the L-section ring to the bearing bore), bearing inside diameter is unsupported in this area

Display units

Metric

Imperial

Main Dimensions & Performance Data

d	325 mm	Bore diameter
	0 mm	Bore diameter upper tolerance
	-0.023 mm	Bore diameter lower tolerance
D	450 mm	Outside diameter
	0 mm	Outside diameter upper tolerance
	-0.023 mm	Outside diameter lower tolerance
H	60 mm	Height
C_r	109,000 N	Basic dynamic load rating, radial
C_0r	320,000 N	Basic static load rating, radial
C_a	191,000 N	Basic dynamic load rating, axial
C_0a	1,260,000 N	Basic static load rating, axial
n_G	760 1/min	Limiting speed
≈m	27 kg	Weight

Mounting dimensions

J	342 mm	Pitch circle diameter fixing holes in inner ring
J₁	430 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
M_A	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	40 mm	Height contact face outer ring
	0.06 mm	Height contact face outerring H1 upper tolerance
	-0.07 mm	Height contact face outerring H1 lower tolerance
H₂	20 mm	Height contact face outer ring
H_M	15 mm	Height shaft washer
D_{1 max}	415.1 mm	Maximum bord diameter inner ring
D_M	412.45 mm	Diameter of dimensional scale on shaft locating washer
C	20 mm	Width of outer ring

Temperature range

T_min	-30 °C	Operating temperature min.
T_max	120 °C	Operating temperature max.

Additional information

c_aL	6,600 N/µm	Axial rigidity of bearing position
c_rL	1,800 N/µm	Radial rigidity of bearing position
c_kL	115,000 Nm/mrad	Tilting rigidity of bearing position
c_aL	19,900 N/µm	Axial rigidity of rolling element set
c_rL	7,100 N/µm	Radial rigidity of rolling element set
c_kL	350,000 Nm/mrad	Tilting rigidity of rolling element set
M_m	2,489 kg*cm2	Mass moment of inertia for rotating outer ring
M_m	4,506 kg*cm2	Mass moment of inertia for rotating inner ring

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Characteristics

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