SX011840-A-UG

Crossed roller bearing

Crossed roller bearingsdimension series 18 to DIN 616

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Main Dimensions & Performance Data

d₁	200 mm	Bore Diameter
	0.004 mm	Bore diameter upper tolerance
	-0.024 mm	Bore diameter lower tolerance
D_a	250 mm	Outside Diameter
	0 mm	Outside diameter upper tolerance
	-0.029 mm	Outside diameter lower tolerance
H	24 mm	Height of the assembled bearing
h_i	24 mm	heigth inner ring
	0.1 mm	Width upper tolerance
	-0.1 mm	Width lower tolerance
≈m	2.949 kg	Weight

Dimensions

D_i	225.8 mm	Inner diameter outer ring
D_M	225 mm	rolling element pitch circle diameter
d_a	224.2 mm	outer diameter inner ring
h	24 mm	height of individual ring
	0 mm	Height of individual ring upper tolerance
	-0.025 mm	Height of individual ring lower tolerance
r_min	1.5 mm	chamfer dimension
S	2 mm	diameter of lubrication hole

Temperature range

T_min	-30 °C	Operating temperature min.
T_max	80 °C	Operating temperature max.

Calculation factors

	0.015 mm	Running accuracy, radial
	0.01 mm	Running accuracy, axial
S_{r min}	0.005 mm	Minimum radial bearing clearance, at standard bearing clearance
S_{r max}	0.025 mm	Maximum radial bearing clearance, at standard bearing clearance
S_{k min}	0.01 mm	Minimum axial tilting clearance, at standard bearing clearance
S_{k max}	0.05 mm	Maximum axial tilting clearance, at standard bearing clearance
RLO_max	0.005 mm	Low clearance: Radial clearance
RLO_max	0.01 mm	Low clearance: Preload
VSP_min	0.005 mm	Minimum bearing preload
VSP_max	0.025 mm	Maximum bearing preload
C_a	104,000 N	Basic dynamic load rating, axial
C_0a	400,000 N	Basic static load rating, axial
C_r	74,000 N	Basic dynamic load rating, radial (for radial load only)
C_0r	197,000 N	Basic static load rating, radial (for radial load only)
N_{G oil}	680 1/min	Limiting speed for oil lubrication with normal clearance
N_{G Grease}	340 1/min	Limiting speed for grease lubrication with normal clearance
N_{G oil}	340 1/min	Limiting speed for oil lubrication with preload
N_{G Grease}	170 1/min	Limiting speed for grease lubrication with preload
	61840	Dimensions identical to ISO dimension series 18

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