SX011868-VSP

Crossed roller bearing

Crossed roller bearingsdimension series 18 to DIN 616

Display units

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Imperial

Main Dimensions & Performance Data

d₁	340 mm	Bore Diameter
	0.007 mm	Bore diameter upper tolerance
	-0.029 mm	Bore diameter lower tolerance
D_a	420 mm	Outside Diameter
	0 mm	Outside diameter upper tolerance
	-0.04 mm	Outside diameter lower tolerance
H	38 mm	Height of the assembled bearing
h_i	38 mm	heigth inner ring
	0.14 mm	Width upper tolerance
	-0.14 mm	Width lower tolerance
≈m	13.1 kg	Weight

Dimensions

D_i	380.8 mm	Inner diameter outer ring
D_M	380 mm	rolling element pitch circle diameter
d_a	379.2 mm	outer diameter inner ring
h	38 mm	height of individual ring
	0 mm	Height of individual ring upper tolerance
	-0.05 mm	Height of individual ring lower tolerance
r_min	2.1 mm	chamfer dimension
S	2.5 mm	diameter of lubrication hole

Temperature range

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

Calculation factors

	0.025 mm	Running accuracy, radial
	0.01 mm	Running accuracy, axial
VSP_min	0.005 mm	Minimum bearing preload
VSP_max	0.025 mm	Maximum bearing preload
C_a	265,000 N	Basic dynamic load rating, axial
C_0a	1,130,000 N	Basic static load rating, axial
C_r	187,000 N	Basic dynamic load rating, radial (for radial load only)
C_0r	550,000 N	Basic static load rating, radial (for radial load only)
N_{G oil}	200 1/min	Limiting speed for oil lubrication with preload
N_{G Grease}	100 1/min	Limiting speed for grease lubrication with preload
	61868	Dimensions identical to ISO dimension series 18

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Bearing preload Standard

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