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Apogee Components
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Centering Rings

Centering Rings are used to concentrically align small tubes inside bigger ones. They can be used as motor blocks to prevent an engine from sliding forward into the parachute compartment of your rocket.

To view centering rings for High-Power Rockets, click Here

Centering Rings for Low-Power Rockets

Part Name

P/N

Qty/
pack

Price

Place Order

I.D.
(inch)

O.D.
(inch)

Length
(inch)

Wt. (g)

Material

Engine Block EB-10

13041

6

$1.35

.329

.412

.125

.06

Yellow
Paper

Centering Ring 10-13
(Can be used as an Engine Block for 13mm motors)

13021

6

$1.74

.453

.510

.188

.11

Green Paper

Centering Ring 10-18

13024

6

$2.17

.453

.704

.188

.49

Green Paper

Centering Ring 10-18L

13027

4

$1.82

.453

.704

.50

1.28

Green Paper

Centering Ring 10-24

15002

6

$1.51

.453

.945

.04

.10

Die-Cut
Cardboard

Centering Ring 13-18
(Can be used as an Engine Block for 18mm motors)

13028

6

$2.34

.549

.700

.25

.44

Blue Paper

Centering Ring 18-24
(Can be used as an Engine Block for 24mm motors)

13032

6

$2.44

.740

.945

.25

.76

Green Paper

Centering Ring 18-29
13036
6
$2.59
.740
1.134
.25
1.64
Blue Paper

Centering Ring 24-29
(Can be used as an Engine Block for 29mm motors)

13037

6

$2.78

.982

1.134

.25

.76

Green Paper

Centering Ring 24-56
(fits BT-70 Tubes)

15026

4

$6.48

.982

2.174

.048

1.8

Die-Cut
Cardboard

  This ring set also includes 2 bulkhead disks that fit inside Airframe Coupler AC-56 (P/N 13042). Read the related article on how to use bulkheads in your rocket designs
(Click Here).

Centering Ring 24-66
(fits BT-80 Tubes)
15028
6
$6.65
.982
2.552
.048
2.7
Die-Cut
Cardboard
DCR 24/41.6
(BT 50/BT 60)
15016
6
$4.28
.982
1.589
.048
.725
Die-Cut
Cardboard

Centering Rings for High Power Rockets

Part Name

P/N

Qty/
pack

Price

Place Order

I.D.
(inch)

O.D.
(inch)

Thickness
(inch)

Wt. (g)

Material

Centering Ring 24-54

13207

2

$4.75

.982

2.134

.375
4.0

Plywood

Centering Ring 24-2.56"
(LOC P/N CR-24-63)

13213

2

$5.80

.982
2.554
.125
5.6

Plywood

Centering Ring 24-75

13219

2

$6.95

.982
2.994
.125
8.8

Plywood

Centering Ring 29-38

13205

4

$4.20

1.146

1.519

.5

3.3

Paper

Centering Ring 29-54
13209
2

$4.75

1.146
2.134
.125
3.1

Plywood

Centering Ring 29-2.56"
(LOC P/N CR-29-63)
13215
2

$5.80

1.146
2.554
.125
4.9

Plywood

Centering Ring 29-75

13221

2

$6.95

1.146

2.994

.125

16.6

Plywood

Centering Ring 29-98

13227

2

$8.10

1.146

3.894

.125

26.7

Plywood

Centering Ring 38-54

13211

2

$4.75

1.641

2.134

.125

3.8

Plywood

Centering Ring 38-2.56"
(LOC P/N CR-38-63)

13217

2

$5.80

1.641

2.554

.125

8.0

Plywood

Centering Ring 38-75

13223

2

$6.95

1.641

2.994

.125

12.6

Plywood

Centering Ring 38-98

13229

2

$8.10

1.641
3.894
.125
24.0

Plywood

Centering Ring 38-5.38"

13235

1

$6.45

1.641
5.374
.125
55.7

Plywood

Centering Ring 38-7.51

13243

1

$9.80

1.641
7.509
.125
109.9

Plywood

Centering Ring 54-75

13225

2

$6.95

2.266

2.994

.25

7.7

Plywood

Centering Ring 54-98
13231
2
$8.10
2.266
3.894
.25
22.8
Plywood
Centering Ring 54-5.38"
13237
1
$6.55
2.266
5.374
.25
49.4

Plywood

Centering Ring 54-7.51"
13245
1
$9.80
2.266
7.509
.25
101.9

Plywood

Centering Ring 75-98

13233

2

$8.10

3.126

3.894

.25

11.4

Plywood

Centering Ring 75-5.38"
13239
1
$7.00
3.126
5.374
.25
40.1

Plywood

Centering Ring 75-7.51"
13247
1
$10.00
3.126
7.509
.25
97.0

Plywood

Centering Ring 98-5.38"
13241
1
$7.80
4.026
3.894
.25
24.5

Plywood

Centering Ring 98-7.51"
13249
1
$10.50
4.026
7.509
.25
77

Plywood

Premium Cardstock To Cut Your Own Centering Rings!

Cardstock Sheet Dimensions:

8-1/2" X 11" X .048" thick

Centering Ring Cardstock

P/N: 44002
Price: $1.76 each sheet

Price: $1.76    Quantity:

Do you need a custom-sized ring to fit a spare tube you have? Or, do you want to save a ton of money over pre-cut rings? We now offer high-density cardstock that can be easily cut to create any size rings you need. This is the same high-quality cardstock that we use to make all the Apogee flat rings. It is stiff, strong (can be used to make rings even for high thrust G motors), and looks great! It can also be used for making fins on small diameter rockets, or to make the fin spacing and alignment guides that we recommend in the Building Skill Level 2 Model Rockets video book.

This cardstock is coated with glossy white paper on both sides of the sheet, so it won't absorb paint like a sponge. You'll save money on paint, and you'll get a great finish with a minimal amount of effort.

Rings-O-Plenty

Rings-O-Plenty

P/N: 09521
Price: $15.60

Price: $15.60    Quantity:
Rings-O-Plenty bulk pak

You'll need extra centering rings and tube couplers to go with your "Tubes-O-Plenty", so here is a big bag of rings and things at a special price; you save $3.99! A rocket designer's wish come true! For dimensions, see the centering ring table listed above.

Here is what you get - Even More Value!

  Description
P/N

Qty.

Reg. Price

  CR 10.5-13
13021

6

$1.74

  CR 10.5-18
13024

6

$2.17

  CR 13-18
13028

6

$2.34

  CR 18-24
13032

6

$2.44

  CR 24-29
13037
4

$1.85

  Coupler 13mm
13014

3

$1.51

  Coupler 18mm
13015

3

$1.61

  Coupler 24mm
13009

3

$1.72

  Coupler 33mm
13017
2

$1.25

  Launch Lugs (1/4" X 3")
13057
3
$1.45
  Launch Lugs (1" long)
13052

12

$1.64

Our regular price if bought seperately: $19.59
The Rings-O-Plenty were recently updated to include the 33mm coupler.
They no longer contain the 29mm coupler.

Do you want tips for making dazzling rockets from your parts?
Video Book Collection
Having Apogee's quality parts to work with is only one piece of the puzzle in making a stunning rocket. Now you need techniques and skills for assembling them into an eye-popping model. Our videos can show you the procedures and methods the experts use when they build rockets. Don't you want your rockets to be the center of attention?
Check out our video collection (click here).

Actual Customer Comment:

"I also agree... Apogee tubes and ring deals are a bargain." -- Mike Crew

Customer Service Standing By

We're Here To Help You

Our Tel: 719-535-9335
(Talk to a real person)

Hours of Operation:
8:30am - 5.00pm

After Hours:
please e-mail

Apogee Components, Inc.
3355 Fillmore Ridge Hts.
Colorado Springs, CO 80907 USA
MAP


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This page last updated on: 6/10/10