Ball Bearings ABEC Standard Tolerances Data

Bearings Application Knowledge Menu

A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races.

The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least two races to contain the balls and transmit the loads through the balls. In most applications, one race is stationary and the other is attached to the rotating assembly (e.g., a hub or shaft). As one of the bearing races rotates it causes the balls to rotate as well. Because the balls are rolling they have a much Lower coefficient of friction than if two flat surfaces were sliding against each other.

Ball bearings tend to have Lower load capacity for their size than other kinds of rolling-element bearings due to the smaller contact area between the balls and races. However, they can tolerate some misalignment of the inner and outer races.

The folLowing are Annular Bearing Engineers Committee (ABEC) for ball bearings quality classes. Applications should only require ABEC 1 or ABEC 3 ball bearings. When highly precise position is required, ABEC 5 or ABEC 7 ball bearings should be specified.

The ABEC scale is an industry accepted standard for the tolerances of a ball bearing. It was developed by the Annular Bearing Engineering Committee (ABEC) of the American Bearing Manufacturers Association (ABMA). There are five classes from largest to smallest tolerances: 1, 3, 5, 7, and 9. The Higher ABEC classes provide better precision, efficiency, and greater speed capabilities, but do not necessarily make the components spin faster. The ABEC rating does not specify many other critical factors, such as smoothness of the rolling contact surfaces, ball precision or quality/type of steel used. The bearing material is not specified in the ABEC grades. Bearings not conforming to at least ABEC 1 can not be classified as precision bearings as their tolerances are too loose. The scale is designed to alLow a user to make an informed decision about the type of bearing they are purchasing. High rated bearings are intended for precision applications like aircraft instruments or surgical equipment. Lower grades are intended for the vast majority of applications such as vehicles, mechanical hobbies, skates, skateboards, fishing reels and industrial machinery. High ABEC rated bearings alLow optimal performance of critical applications requiring very High RPM and smooth operation. ISO's equivalent standard is ISO 492.

Bearing standards and class

BEARING CLASSES BY STANDARD ANSI Standard 20 ISO 492 DIN 620

ANSI 20	ISO 492	DIN 620
ABEC 1	Class Normal	P0
ABEC 3	Class 6	P6
ABEC 5	Class 5	P5
ABEC 7	Class 4	P4
ABEC 9	Class 2	P2

Inner Ring Size Tolerances (all units are in inches)
Bore Diameter ID		d				W ( Inner Ring)
From	To	ABEC 1	ABEC 3	ABEC 5	ABEC 7	ABEC 1	ABEC 3	ABEC 5	ABEC 7
0	.3937	+.0000 -.0003	+.0000 -.0002	+.0000 -.0002	+.0000 -.0002	+.0000 -.0005	+.0000 -.0005	+.0000 -.0010	+.0000 -.0010
.3938	.7087	+.0000 -.0003	+.0000 -.0002	+.0000 -.0002	+.0000 -.0002	+.0000 -.0005	+.0000 -.0005	+.0000 -.0010	+.0000 -.0010
.7088	1.1811	+.0000 -.0004	+.0000 -.0002	+.0000 -.0002	+.0000 -.0002	+.0000 -.0005	+.0000 -.0005	+.0000 -.0010	+.0000 -.0010
1.1812	1.9586	+.0000 -.0005	+.0000 -.0003	+.0000 -.0002	+.0000 -.0002	+.0000 -.0005	+.0000 -.0005	+.0000 -.0010	+.0000 -.0010

There are a number of factors covered by the ABEC grades. One is the eccentricity (roundness) of the track in the inner ring, which determines run-out . The references given beLow show the Max.mum eccentricity alLowable.

• ABEC 1: 0.0075 mm (0.000295")
• ABEC 3: 0.0050 mm (0.000197")
• ABEC 5: 0.0035 mm (0.000138")
• ABEC 7: 0.0025 mm (0.000098")
• ABEC 9: 0.0012 mm (0.000047")

Class ABEC-1, RBEC-1
(ISO Class Normal)
Inner Ring
Values given as 0.0001 inch




Bore Diameter (d)				Bore Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
0.6	2.5	0.0236	0.0984	0	-3	4	0	-16	-
2.5	10	0.0984	0.3937	0	-3	4	0	-47	-98
10	18	0.3937	0.7087	0	-3	4	0	-47	-98
18	30	0.7087	1.1811	0	-4	5	0	-47	-98
30	50	1.1811	1.9685	0	-4.5	6	0	-47	-98
50	80	1.9685	3.1496	0	-6	8	0	-59	-150
80	120	3.1496	4.7244	0	-8	10	0	-79	-150
120	180	4.7244	7.0866	0	-10	12	0	-98	-197
180	250	7.0866	9.8425	0	-12	16	0	-118	-197
250	315	9.8425	12.4016	0	-14	20	0	-138	-197
315	400	12.4016	15.7480	0	-16	24	0	-157	-248

Values given as mm

Bore Diameter (d)				Bore Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
0.6	2.5	0.0236	0.0984	0	-8	10	0	-40	-
2.5	10	0.0984	0.3937	0	-8	10	0	-120	-250
10	18	0.3937	0.7087	0	-8	10	0	-120	-250
18	30	0.7087	1.1811	0	-10	13	0	-120	-250
30	50	1.1811	1.9685	0	-12	15	0	-120	-250
50	80	1.9685	3.1496	0	-15	20	0	-150	-380
80	120	3.1496	4.7244	0	-20	25	0	-200	-380
120	180	4.7244	7.0866	0	-25	30	0	-250	-500
180	250	7.0866	9.8425	0	-30	40	0	-300	-500
250	315	9.8425	12.4016	0	-35	50	0	-350	-500
315	400	12.4016	15.7480	0	-40	60	0	-400	-630

Tolerance Class ABEC-1, RBEC-1
(ISO Class Normal)
Outer Ring
Values given as 0.0001 inch


Tolerance values in 0.0001 inch

Outer Diameter (D)				Outer Dia. Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
2.5	6	0.0984	0.2362	0	-3	6	Identical to Width Tolerance of Inner Ring with same Bearing
6	18	0.2362	0.7087	0	-3	6
18	30	0.7087	1.1811	0	-3.5	6
30	50	1.1811	1.9685	0	-4.5	8
50	80	1.9685	3.1496	0	-5	10
80	120	3.1496	4.7244	0	-6	14
120	150	4.7244	5.9055	0	-7	16
150	180	5.9055	7.0866	0	-10	18
180	250	7.0866	9.8425	0	-12	20
250	315	9.8425	12.4016	0	-14	24
315	400	12.4016	15.7480	0	-16	28
400	500	15.7480	19.6850	0	-18	31
500	630	19.6850	24.8031	0	-20	39
630	800	24.8031	31.4961	0	-30	47
800	1000	31.4961	39.3701	0	-39	55

Values given as mm

Outer Diameter (D)				Outer Dia. Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
2.5	6	0.0984	0.2362	0	-8	15	Identical to Width Tolerance of Inner Ring with same Bearing
6	18	0.2362	0.7087	0	-8	15
18	30	0.7087	1.1811	0	-9	15
30	50	1.1811	1.9685	0	-11	20
50	80	1.9685	3.1496	0	-13	25
80	120	3.1496	4.7244	0	-15	35
120	150	4.7244	5.9055	0	-18	40
150	180	5.9055	7.0866	0	-25	45
180	250	7.0866	9.8425	0	-30	50
250	315	9.8425	12.4016	0	-35	60
315	400	12.4016	15.7480	0	-40	70
400	500	15.7480	19.6850	0	-45	80
500	630	19.6850	24.8031	0	-50	100
630	800	24.8031	31.4961	0	-75	120
800	1000	31.4961	39.3701	0	-100	140

 

Tolerance Class ABEC-3, RBEC-3
(ISO Class 6)
Inner Ring
Values given as0.0001 inch

Tolerance values in 0.0001 inch

Bore Diameter (d)				Bore Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
0.6	2.5	0.0236	0.0984	0	-3	2	0	-16	-
2.5	10	0.0984	0.3937	0	-3	2.5	0	-47	-98
10	18	0.3937	0.7087	0	-3	3	0	-47	-98
18	30	0.7087	1.1811	0	-3	3	0	-47	-98
30	50	1.1811	1.9685	0	-4	4	0	-47	-98
50	80	1.9685	3.1496	0	-4.5	4	0	-59	-150
80	120	3.1496	4.7244	0	-6	5	0	-79	-150
120	180	4.7244	7.0866	0	-7	7	0	-98	-197
180	250	7.0866	9.8425	0	-8.5	8	0	-118	-197
250	315	9.8425	12.4016	0	-10	10	0	-138	-197
315	400	12.4016	15.7480	0	-16	24	0	-157	-248

Values given as mm


Tolerance values in micrometers

Bore Diameter (d)				Bore Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
0.6	2.5	0.0236	0.0984	0	-7	5	0	-40	-
2.5	10	0.0984	0.3937	0	-7	6	0	-120	-250
10	18	0.3937	0.7087	0	-7	7	0	-120	-250
18	30	0.7087	1.1811	0	-8	8	0	-120	-250
30	50	1.1811	1.9685	0	-10	10	0	-120	-250
50	80	1.9685	3.1496	0	-12	10	0	-150	-380
80	120	3.1496	4.7244	0	-15	13	0	-200	-380
120	180	4.7244	7.0866	0	-18	18	0	-250	-500
180	250	7.0866	9.8425	0	-22	20	0	-300	-500
250	315	9.8425	12.4016	0	-25	25	0	-350	-500
315	400	12.4016	15.7480	0	-30	30	0	-400	-630

Tolerance Class ABEC-3, RBEC-3
(ISO Class 6)
Outer Ring
Value given as 0.0001 inch


EnglishTolerance values in 0.0001 inch

Outer Diameter (D)				Outer Dia. Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
2.5	6	0.0984	0.2362	0	-3	3	Identical to Width Tolerance of Inner Ring with same Bearing
6	18	0.2362	0.7087	0	-3	3
18	30	0.7087	1.1811	0	-3	3.5
30	50	1.1811	1.9685	0	-3.5	4
50	80	1.9685	3.1496	0	-4.5	5
80	120	3.1496	4.7244	0	-5	7
120	150	4.7244	5.9055	0	-6	8
150	180	5.9055	7.0866	0	-7	9
180	250	7.0866	9.8425	0	-8	10
250	315	9.8425	12.4016	0	-10	12
315	400	12.4016	15.7480	0	-11	14
400	500	15.7480	19.6850	0	-13	16
500	630	19.6850	24.8031	0	-20	39
630	800	24.8031	31.4961	0	-18	24
800	1000	31.4961	39.3701	0	-24	30

Values given in mm

MetricTolerance values in micrometers

Outer Diameter (D)				Outer Dia. Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
2.5	6	0.0984	0.2362	0	-7	8	Identical to Width Tolerance of Inner Ring with same Bearing
6	18	0.2362	0.7087	0	-7	8
18	30	0.7087	1.1811	0	-8	9
30	50	1.1811	1.9685	0	-9	10
50	80	1.9685	3.1496	0	-11	13
80	120	3.1496	4.7244	0	-13	18
120	150	4.7244	5.9055	0	-15	20
150	180	5.9055	7.0866	0	-18	23
180	250	7.0866	9.8425	0	-20	25
250	315	9.8425	12.4016	0	-25	30
315	400	12.4016	15.7480	0	-28	35
400	500	15.7480	19.6850	0	-33	40
500	630	19.6850	24.8031	0	-38	50
630	800	24.8031	31.4961	0	-45	60
800	1000	31.4961	39.3701	0	-60	75

Tolerance Class ABEC-5, RBEC-5
(ISO Class 5)
Inner Ring
Values given in inch 0.0001

EnglishTolerance values in 0.0001 inch

Bore Diameter (d)				Bore Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
0.6	2.5	0.0236	0.0984	0	-2	1.5	0	-16	-98
2.5	10	0.0984	0.3937	0	-2	1.5	0	-16	-98
10	18	0.3937	0.7087	0	-2	1.5	0	-31	-98
18	30	0.7087	1.1811	0	-2.5	1.5	0	-47	-98
30	50	1.1811	1.9685	0	-3	2	0	-47	-98
50	80	1.9685	3.1496	0	-3.5	2	0	-59	-98
80	120	3.1496	4.7244	0	-4	2.55	0	-79	-150
120	180	4.7244	7.0866	0	-5	3	0	-98	-150
180	250	7.0866	9.8425	0	-6	4	0	-118	-197
250	315	9.8425	12.4016	0	-7	5	0	-138	-197
315	400	12.4016	15.7480	0	-9	6	0	-157	-248

Values given in mm

MetricTolerance values in micrometers

Bore Diameter (d)				Bore Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
0.6	2.5	0.0236	0.0984	0	-5	4	0	-40	-250
2.5	10	0.0984	0.3937	0	-5	4	0	-40	-250
10	18	0.3937	0.7087	0	-5	4	0	-80	-250
18	30	0.7087	1.1811	0	-6	4	0	-120	-250
30	50	1.1811	1.9685	0	-8	5	0	-120	-250
50	80	1.9685	3.1496	0	-9	5	0	-150	-250
80	120	3.1496	4.7244	0	-10	6	0	-200	-380
120	180	4.7244	7.0866	0	-13	8	0	-250	-380
180	250	7.0866	9.8425	0	-15	10	0	-300	-500
250	315	9.8425	12.4016	0	-18	13	0	-350	-500
315	400	12.4016	15.7480	0	-23	15	0	-400	-630

Tolerance Class ABEC-5, RBEC-5
(ISO Class 5)
Outer Ring
Values given in inch

EnglishTolerance values in 0.0001 inch

Outer Diameter (D)				Outer Dia. Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
2.5	6	0.0984	0.2362	0	-2	2	Identical to Width Tolerance of Inner Ring with same Bearing
6	18	0.2362	0.7087	0	-2	2
18	30	0.7087	1.1811	0	-2.5	2.5
30	50	1.1811	1.9685	0	-3	3
50	80	1.9685	3.1496	0	-3.5	3
80	120	3.1496	4.7244	0	-4	4
120	150	4.7244	5.9055	0	-4.5	4.5
150	180	5.9055	7.0866	0	-5	5
180	250	7.0866	9.8425	0	-6	6
250	315	9.8425	12.4016	0	-7	7
315	400	12.4016	15.7480	0	-8	8
400	500	15.7480	19.6850	0	-9	9
500	630	19.6850	24.8031	0	-11	10
630	800	24.8031	31.4961	0	-14	12

Values given in mm

Outer Diameter (D)				Outer Dia. Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
2.5	6	0.0984	0.2362	0	-5	5	Identical to Width Tolerance of Inner Ring with same Bearing
6	18	0.2362	0.7087	0	-5	5
18	30	0.7087	1.1811	0	-6	6
30	50	1.1811	1.9685	0	-6	6
50	80	1.9685	3.1496	0	-9	8
80	120	3.1496	4.7244	0	-10	10
120	150	4.7244	5.9055	0	-11	11
150	180	5.9055	7.0866	0	-13	13
180	250	7.0866	9.8425	0	-15	15
250	315	9.8425	12.4016	0	-18	18
315	400	12.4016	15.7480	0	-20	20
400	500	15.7480	19.6850	0	-23	23
500	630	19.6850	24.8031	0	-28	25
630	800	24.8031	31.4961	0	-35	30

Tolerance Class ABEC-7, RBEC-7
(ISO Class 4)
Inner Ring
Values in 0.0001 inch

Bore Diameter (d)				Bore Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
0.6	2.5	0.0236	0.0984	0	-1.5	1	0	-16	-98
2.5	10	0.0984	0.3937	0	-1.5	1	0	-16	-98
10	18	0.3937	0.7087	0	-1.5	1	0	-31	-98
18	30	0.7087	1.1811	0	-2	1	0	-47	-98
30	50	1.1811	1.9685	0	-2.5	1.5	0	-47	-98
50	80	1.9685	3.1496	0	-3	1.5	0	-59	-98
80	120	3.1496	4.7244	0	-3	2	0	-79	-150
120	180	4.7244	7.0866	0	-4	2.5	0	-98	-150
180	250	7.0866	9.8425	0	-4.5	3	0	-118	-197

Tolerance values in mm

Bore Diameter (d)				Bore Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
0.6	2.5	0.0236	0.0984	0	-4	2.5	0	-40	-250
2.5	10	0.0984	0.3937	0	-4	2.5	0	-40	-250
10	18	0.3937	0.7087	0	-4	2.5	0	-80	-250
18	30	0.7087	1.1811	0	-5	3	0	-120	-250
30	50	1.1811	1.9685	0	-6	4	0	-120	-250
50	80	1.9685	3.1496	0	-7	4	0	-150	-250
80	120	3.1496	4.7244	0	-8	5	0	-200	-380
120	180	4.7244	7.0866	0	-10	6	0	-250	-380
180	250	7.0866	9.8425	0	-12	8	0	-300	-500


Tolerance Class ABEC-7, RBEC-7
(ISO Class 4)
Outer Ring
values in 0.0001 inch

Outer Diameter (D)				Outer Dia. Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
2.5	6	0.0984	0.2362	0	-1.5	1	Identical to Width Tolerance of Inner Ring with same Bearing
6	18	0.2362	0.7087	0	-1.5	1
18	30	0.7087	1.1811	0	-2	1.5
30	50	1.1811	1.9685	0	-2.5	2
50	80	1.9685	3.1496	0	-3	2
80	120	3.1496	4.7244	0	-3	2.5
120	150	4.7244	5.9055	0	-3.5	3
150	180	5.9055	7.0866	0	-4	3
180	250	7.0866	9.8425	0	-4.5	4
250	315	9.8425	12.4016	0	-5	4.5
315	400	12.4016	15.7480	0	-6	5

Tolerance values in mm

Outer Diameter (D)				Outer Dia. Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
2.5	6	0.0984	0.2362	0	-4	3	Identical to Width Tolerance of Inner Ring with same Bearing
6	18	0.2362	0.7087	0	-4	3
18	30	0.7087	1.1811	0	-5	4
30	50	1.1811	1.9685	0	-6	5
50	80	1.9685	3.1496	0	-7	5
80	120	3.1496	4.7244	0	-8	6
120	150	4.7244	5.9055	0	-9	7
150	180	5.9055	7.0866	0	-10	8
180	250	7.0866	9.8425	0	-11	10
250	315	9.8425	12.4016	0	-13	11
315	400	12.4016	15.7480	0	-15	13

Tolerance Class ABEC-9, RBEC-9
(ISO Class 2)
Inner Ring
values in 0.0001 inch

Bore Diameter (d)				Bore Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
0.6	2.5	0.0236	0.0984	0	-1	0.5	0	-16	-98
2.5	10	0.0984	0.3937	0	-1	0.5	0	-16	-98
10	18	0.3937	0.7087	0	-1	0.5	0	-31	-98
18	30	0.7087	1.1811	0	-1	1	0	-47	-98
30	50	1.1811	1.9685	0	-1	1	0	-47	-98
50	80	1.9685	3.1496	0	-1.5	1	0	-59	-98
80	120	3.1496	4.7244	0	-2	1	0	-79	-150
120	150	4.7244	5.9055	0	-3	1	0	-98	-150
150	180	5.9055	7.0866	0	-3	2	0	-98	-150
180	250	7.0866	9.8425	0	-3	2	0	-118	-197

values in 0.0001 mm

Bore Diameter (d)				Bore Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
0.6	2.5	0.0236	0.0984	0	-2.5	1.5	0	-40	-250
2.5	10	0.0984	0.3937	0	-2.5	1.5	0	-40	-250
10	18	0.3937	0.7087	0	-2.5	1.5	0	-80	-250
18	30	0.7087	1.1811	0	-2.5	2.5	0	-120	-250
30	50	1.1811	1.9685	0	-2.5	2.5	0	-120	-250
50	80	1.9685	3.1496	0	-4	2.5	0	-150	-250
80	120	3.1496	4.7244	0	-5	2.5	0	-200	-380
120	150	4.7244	5.9055	0	-7	2.5	0	-250	-380
150	180	5.9055	7.0866	0	-7	5	0	-250	-380
180	250	7.0866	9.8425	0	-8	5	0	-300	-500

Tolerance Class ABEC-9, RBEC-9
(ISO Class 2)
Outer Ring
values in 0.0001 inch

Outer Diameter (D)				Outer Dia. Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
2.5	6	0.0984	0.2362	0	-1	0.5	Identical to Width Tolerance of Inner Ring with same Bearing
6	18	0.2362	0.7087	0	-1	0.5
18	30	0.7087	1.1811	0	-1	0.5
30	50	1.1811	1.9685	0	-1.5	1
50	80	1.9685	3.1496	0	-1.5	1.5
80	120	3.1496	4.7244	0	-2	2
120	150	4.7244	5.9055	0	-2	2
150	180	5.9055	7.0866	0	-3	2
180	250	7.0866	9.8425	0	-3	3
250	315	9.8425	12.4016	0	-3	3
315	400	12.4016	15.7480	0	-4	3

Tolerance values in micrometers

Outer Diameter (D)				Outer Dia. Tolerance		Radial Runout	Width Tolerance
mm		inch					all	single bearing	paired bearings
Over	Incl.	Over	Incl.	High	Low	Max.	High	Low
2.5	6	0.0984	0.2362	0	-2.5	1.5	Identical to Width Tolerance of Inner Ring with same Bearing
6	18	0.2362	0.7087	0	-2.5	1.5
18	30	0.7087	1.1811	0	-4	2.5
30	50	1.1811	1.9685	0	-4	2.5
50	80	1.9685	3.1496	0	-4	4
80	120	3.1496	4.7244	0	-5	5
120	150	4.7244	5.9055	0	-5	5
150	180	5.9055	7.0866	0	-7	5
180	250	7.0866	9.8425	0	-8	7
250	315	9.8425	12.4016	0	-8	7
315	400	12.4016	15.7480	0	-10	8

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