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OS 4 Stroke Aero

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You are here - Home > Engine Bearings > OS > OS 4 Stroke Aero

Please refer to the table below for bearings to fit the OS range of  4 stroke Aeroplane engines.

When replacing engine bearings, we recommend both front and rear bearings are replaced together. Unless stated otherwise, 1 front and 1 rear bearing is required per engine.

If you have an engine that is not listed, or the table states 'Bearing data required', please  go to the 'Bearing Enquiries' page to send us details - we will almost certainly be able to find you a replacement. We give a 10% discount on the normal bearing selling price when you have given us information which adds to our bearings data lists.

To order, click on the 'Add to Order' button alongside the item of your choice. You can select the quantity on the order form (default is 1). To continue ordering other items, use the 'Continue Shopping' button on the order form.

You can review and edit your order, or submit your order at any time by using the button at the bottom of each list.

All prices include 20% VAT  Click here for details

Engine Size

Position

Bore

OD

Depth

No of Seals

No of Shields

MF Ref

Price each

You can enter/change the number of items on the order form

FS 20

Front

8

19

6

0

1

EB015b £8.00

Rear

12

24

6

0

0

EB034 £9.50

FS 26S

Front

8

19

6

0

1

EB015b £8.00

Rear

12

24

6

0

0

EB034 £9.50

FS 40S

Front

8

19

6

0

1

EB015b £8.00

Rear

12

24

6

0

0

EB034 £9.50

Camshaft
option 1

5

13

4

0

2

EB002 £7.50

 

Camshaft
option 2*

5

13

4

0

0

EB002b £7.50

  * we are aware that some variants have open camshaft bearings - please check your engine before ordering  

FS 48S

Front

8

22

7

0

1

EB017 £7.75

Rear

12

28

7

0

0

EB047 £7.50

Camshaft

5

13

4

0

2

EB002 £7.50

FS 52S

Front

8

22

7

0

1

EB017 £7.75

Rear

12

28

8

1

0

EB043 £7.50

Camshaft

5

13

4

0

2

EB002 £7.50

 

Camshaft
option 2*

5

13

4

0

0

EB002b £7.50

  * we are aware that some variants have open camshaft bearings - please check your engine before ordering  
                   
FL70

Front

8

22

7

0

1

EB018 £7.75

Rear

12

28

8

0

2

EB039A £6.30

FS 70S

Front

9.525

22.22

7.14

0

1

EB106 £9.25

Rear

15

32

8

0

0

EB055 £10.50

Camshaft

5

13

4

0

2

EB002 £7.50

 

Camshaft
option 2*

5

13

4

0

0

EB002b £7.50

  * we are aware that some variants have open camshaft bearings - please check your engine before ordering  

FS 70 II

Front

9.525

22.22

7.14

0

1

EB106 £9.25

Rear

15

32

8

0

0

EB055 £10.50

Camshaft

5

13

4

0

2

EB002 £7.50

 

Camshaft
option 2*

5

13

4

0

0

EB002b £7.50

  * we are aware that some variants have open camshaft bearings - please check your engine before ordering  
                   

Alpha
82
(Blue rocker cover)

Front

9.525

22.22

7.14

0

2

EB105 £9.25

Rear

15

32

8

0

0

EB055 £10.50

Camshaft

5

13

4

0

2

EB002 £7.50

                   

FS 91S

Front

9.525

22.22

7.14

0

1

EB106 £9.25

Rear

15

32

9

0

1

EB057 £7.50

Camshaft

5

13

4

0

2

EB002 £7.50

 

Camshaft
option 2*

5

13

4

0

0

EB002b £7.50

  * we are aware that some variants have open camshaft bearings - please check your engine before ordering  

FS 91S II
inc pumped version

Front

9.525

22.22

7.14

0

1

EB106 £9.25

Rear

15

32

9

2

0

EB058 £6.25

Camshaft

5

13

4

0

2

EB002 £7.50

 

Camshaft
option 2*

5

13

4

0

0

EB002b £7.50

  * we are aware that some variants have open camshaft bearings - please check your engine before ordering  

FS 120 SE

Front

10 26 8 0 1 EB031 £7.75

Rear

15 32 9 0 1 EB057 £7.50

Camshaft

5

13

4

0

2

EB002 £7.50

 

Camshaft
option 2*

5

13

4

0

0

EB002b £7.50

  * we are aware that some variants have open camshaft bearings - please check your engine before ordering  

FS 120 S-SP

Front

10 26 8 0 1 EB031 £7.75

Rear

15 32 9 0 1 EB057 £7.50

Camshaft

5

13

4

0

2

EB002 £7.50

 

Camshaft
option 2*

5

13

4

0

0

EB002b £7.50

  * we are aware that some variants have open camshaft bearings - please check your engine before ordering  

FS 120 S III

Front

10 26 8 0 1 EB031 £7.75

Rear

15

32

9

2

0

EB058 £6.25

Camshaft

5

13

4

0

2

EB002 £7.50

 

Camshaft
option 2*

5

13

4

0

0

EB002b £7.50

  * we are aware that some variants have open camshaft bearings - please check your engine before ordering  

This page was last modified on : June 14, 2017

 
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