Bearings, units and housings -- Super-precision bearings -- Double direction angular contact thrust ball bearings -- Angular contact thrust ball bearings, double direction, super-precision -- SKF BTW 55 CTN9/SP

BTW 55 CTN9/SP

Dimensions

d		55	mm
D		90	mm
H		44	mm
d₁		75.2	mm
2C		22	mm
r_1,2	min.	1.1	mm
r_3,4	min.	0.6	mm

Abutment dimensions

d_a	min.	68	mm
D_a	min.	84	mm
D_a	max.	85	mm
r_a	max.	1	mm
r_b	max.	0.6	mm

Calculation data

Basic dynamic load rating	C	30.2	kN
Basic static load rating	C₀	80	kN
Fatigue load limit	P_u	3.8	kN
Attainable speed for grease lubrication		7500	r/min
Attainable speed for oil-air lubrication		9000	r/min
Preload		440	N
Static axial stiffness		580	N/µm
Reference grease quantity	G_ref	4.8	cm³

Mass

Mass bearing

0.86

Model Number: BTW 55 CTN9/SP
Inner Diameter：55mm Outer Diameter：90mm Width：44mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Super-precision bearings Double direction angular contact thrust ball bearings Angular contact thrust ball bearings, double direction, super-precision
Details： Angular contact thrust ball bearings, double direction, super-precision
Update date：2026-04-16
Application:other mold,vertical sawing machine,top industry,spring industry,miscellaneous instruments,experimental equipment,car steering pin,chuck industry,Sensors,rubber products machinery and equipment,spectrometer
Similar models:315523 331554 A PWM 455360 PCM 556050 M PCM 040510 E/VB055 PCM 10010550 E PCM 30030550 M BT4B 328955 ABG/HA1VA902 BT4B 328913 BG/HA1C555 BT4B 328955 BG/HA1VA901
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