04/20/2024

ENGINE BEARINGS

Its easy to order replacement bearings for most model engines.

Our racing bearings have special ball retainers made by us that are designed for 30,000+ RPM's


NOTE:	All rear bearings are open. Most front bearings have one seal or shield facing forward. Some are open. Some 4-strokes have two seals or shields on front bearing.

Inch Series ID x OD x W	Type		MECOA/K&B Part No.
.250 x .625 x .196	Standard	open 1-shield 1-seal 2-seals	918-R4 918-R4Z 18-0012 918-R4RR
.250 x .625 x .196	Racing	open	18-8776
.375 x .875 x .219	Standard	open	18-0008 or 25205
.375 x .875 x .219	Racing	open	18-8778
.375 x .875 x .281	Standard	open 1-shield 1-seal 2-seals	918-R6 918-R6Z or 1046-251 18-0002 918-R6RR

.500x.875x.219	Standard	open	13742
.500 x 1.125 x .250	Standard	open	13842
.500 x 1.125 x .250	Racing	open	18-8779
.625 x 1.375 x .281	Standard	open	18-0024

METRIC Series ID x OD x W	Type		MECOA/K&B Part No.
5 x 16 x 5	Standard	Open	1008-251
7 x 14 x 3.5 .275 x .551 x .138	Standard	open	18-0007
7 x 19 x 6 .275 x .748 x .236	Standard	open 1-seal 2-seals	918-607 18-0018 18-0020

8 x 16 x 5	Standard	open	11CX03C
8 x 22 x 7 .315 x .866 x .276	Racing	open	18-8446
8 x 22 x 7 .315 x .866 x .276	Standard	open 1-seal 2-seals	- 18-0010 18-0021
9 x 17 x 4 .354 x .669 x .157	Standard	open	18-0013
9 x 17 x 5 .354 x .669 x .157	Standard	1-shield	18-M1502
9 x 20 x 6 .354 x .787 x .236	Standard	1-shield	918-699Z
9 x 24 x 7 .354 x .944 x .276	Standard	open	18-0019
10 x 19 x 5 .390x.748x.196	Standard	open	1008-252 or 11742 18-0025
Special bearing 11 x 22 x 5 .433 x .866 x .197	Standard	open	18-0005
12 x 24 x 6 .472 x .944 x .236	Standard	open	18-0011
12 x 24 x 6 .472 x .944 x .236	Racing	open	18-8775
12 x 28 x 8 .472 x 1.102 x .315	Racing	open	18-8772
	Standard	2-seals	1050-25
		open	18-0014
		1-shield	18w-4652 or 046-252
Special bearing 12.5x24x6	Standard	open	918-6901x
13 x 24 x 6 .512 x .945 x ..236	Racing	open	18-8789
15 x 28 x 7 .590 x 1.102 x .276	Standard	open	18-0016
15 x 28 x 7 .590 x 1.102 x .276	Racing	open	18-8777
15 x 32 x 8 .590 x 1.260 x .315	Standard	open	18-0009
15 x 32 x 9 .590 x 1.260 x .354	Standard	open	18-0001
15 x 32 x 9 .590 x 1.260 x .354	Racing	open	18-8774
17 x 26 x 5 .669 x 1.024 x .197	Standard	open	18f-7042 27042
17 x 30 x 7 .669 x 1.181 x .276	Standard	open	18-0017 or 26642
17 x 30 x 7 .669 x 1.181 x .276	Racing	open	18-8781
17 x 35 x 8 .669 x 1.378 x .315	Standard	open	1037-252
17 x 35 x 8 .669 x 1.378 x .315	Racing	open	1064-252
20 x 42 x 8 .787 x 1.654 x .315	Standard	open	18w-5652 or 1056/252

ULTRA SPECIAL METRIC/INCH MIX ID x OD x W	Type		MECOA/K&B Part No.
15mm x 1.250 inch x .250 inch Special Size	Racing	open	18-8780


One Way Starter Bearings			MECOA/K&B Part No.
Shaft Size	Hex Size	Length
6 mm	14 mm		S18-001
6 mm	14 mm		S18-002
4 mm	11 mm		S18-003


Roller Bearings ID x OD x W	Type		MECOA/K&B Part No.

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