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 45 CTN9/SP

BTW 45 CTN9/SP

Dimensions

d		45	mm
D		75	mm
H		38	mm
d₁		62.5	mm
2C		19	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm

Abutment dimensions

d_a	min.	56	mm
D_a	min.	69.9	mm
D_a	max.	71	mm
r_a	max.	1	mm
r_b	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	22.1	kN
Basic static load rating	C₀	54	kN
Fatigue load limit	P_u	2.6	kN
Attainable speed for grease lubrication		9500	r/min
Attainable speed for oil-air lubrication		12000	r/min
Preload		390	N
Static axial stiffness		513	N/µm
Reference grease quantity	G_ref	3.1	cm³

Mass

Mass bearing

0.53

Model Number: BTW 45 CTN9/SP
Inner Diameter：45mm Outer Diameter：75mm Width：38mm
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:Gas turbine,Wire grinder,building decoration raw materials and accessories,static control,Infrared Technology,metallurgical mold,bathroom facilities,non-motor vehicle Electric car,engineering machinery,Cylinder Micro,sheet industry
Similar models:GEH 45 TXE-2LS PF 45 TR IR 45x50x25 QJ 1248 MA/344524 BTW 45 CTN9/SP FY 45 FM SIL 45 TXE-2LS SI 45 ES-2RS HK 4512 IR 55x63x45
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Model No.	Inner Diameter	Outer Diameter	Width	Type
6009 NR	45	75	16	Bearings, units and housings
6209-Z	45	85	19	Bearings, units and housings
7020 CE/P4AL	100	150	24	Bearings, units and housings
7324 BCBM	120	260	55	Bearings, units and housings
AOH 3276 G	360	380	284	Bearings, units and housings
TQO design	343.052	457.098	-	Bearings, units and housings
C 2207 V	35	72	23	Bearings, units and housings
FYR 4	101.6	-	-	Bearings, units and housings
SAF 1610 x 1.5/8	41.275	-	-	Bearings, units and housings
T7FC 065	65	130	37	Bearings, units and housings
TU 25 FM	25	-	-	Bearings, units and housings
W 629-2RZ	9	26	8	Bearings, units and housings

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