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 50 CTN9/SP

BTW 50 CTN9/SP

Dimensions

d		50	mm
D		80	mm
H		38	mm
d₁		67.5	mm
2C		19	mm
r_1,2	min.	1	mm
r_3,4	min.	0.3	mm

Abutment dimensions

d_a	min.	61	mm
D_a	min.	74.9	mm
D_a	max.	76	mm
r_a	max.	1	mm
r_b	max.	0.3	mm

Calculation data

Basic dynamic load rating	C	22.5	kN
Basic static load rating	C₀	60	kN
Fatigue load limit	P_u	2.85	kN
Attainable speed for grease lubrication		9000	r/min
Attainable speed for oil-air lubrication		11000	r/min
Preload		415	N
Static axial stiffness		559	N/µm
Reference grease quantity	G_ref	3.3	cm³

Mass

Mass bearing

0.58

Model Number: BTW 50 CTN9/SP
Inner Diameter：50mm Outer Diameter：80mm 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：2025-12-09
Application:reinforced machinery,surgical instruments,agriculture,Industrial Adhesive,construction machinery and equipment,chamfer,respirator,wire industry,Antenna Potentials,Tool,Roller mill
Similar models:PBM 405060 M1G1 BD-231/750 CAK/W33-OH 31/750 H PRM 455040 BTW 150 CM/SP FYTWK 507 Y GEP 950 FS 232/500 CA/W33 TUJ 504 OH 30/750 HE RNAO 50x65x40
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Model No.	Inner Diameter	Outer Diameter	Width	Type
1325600	336.55	387.35	31.75	Seals
5046	12.7	28.55	7.95	Seals
71924 ACE/HCP4AL	120	165	22	Bearings, units and housings
72805	184.9882	224.79	15.88	Seals
87820	-	-	50	Seals
99815	27.0002	33.528	11.1252	Seals
AS 3047	30	47	1	Bearings, units and housings
BT4B 331333 BG/HA1	409.575	546.1	-	Bearings, units and housings
FY 512 M	-	-	-	Bearings, units and housings
SAF 1217 TLC	85	-	-	Bearings, units and housings
SI 45 ESX-2LS	45	-	32	Bearings, units and housings
STO 30	30	62	20	Bearings, units and housings

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