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Bearings and Oil Seals

(282 products)
Crankshafts Bearings and Oil Seals Small End Bearings Crankshaft Accessories
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Artein Athena Bidalot CIF Doppler Hot Rods Malossi MotoForce MotoForce Racing MVT Naraku Polini Prox RMS Schmitt SKF Stage6 Stage6 R/T Standard Parts Voca Racing
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Naraku
Crankshaft bearings and oil seals, Kymco Fever / Meteorit
Article no.: NK100.32

Crankshaft bearings and oil seals, Kymco Fever / Meteorit

32,50 €
In stock
Malossi
Crankshaft Bearings Malossi Piaggio Ciao / Bravo
Article no.: M664678E

Crankshaft Bearings Malossi Piaggio Ciao / Bravo

22,00 €
In stock
Polini
Oil Seals Polini crankshaft 19mm Vespa 50cc PK / 125cc Primavera
Article no.: P285.0005

Oil Seals Polini crankshaft 19mm Vespa 50cc PK / 125cc Primavera

19,00 €
In stock
RRP
20,00 €
-5% Discount
Bidalot
Crankshaft Bearing Bidalot SKF C3 polymer cage 25x47x12mm
Article no.: BID80000962

Crankshaft Bearing Bidalot SKF C3 polymer cage 25x47x12mm

15,00 €
In stock
Sale
Polini
Crankshaft Bearings Polini + Oil Seals Minarelli AM6
Article no.: P282.0003

Crankshaft Bearings Polini + Oil Seals Minarelli AM6

30,00 €
In stock
RRP
31,00 €
-3% Discount
Polini
Crankshaft Bearings Polini + Oil Seals Yamaha Aerox / BW's
Article no.: P282.0002

Crankshaft Bearings Polini + Oil Seals Yamaha Aerox / BW's

31,00 €
In stock
Polini
Crankshaft Bearing Set Polini Piaggio / Gilera / Aprilia / Vespa
Article no.: P282.0001
2

Crankshaft Bearing Set Polini Piaggio / Gilera / Aprilia / Vespa

39,00 €
In stock
RRP
41,00 €
-5% Discount
Polini
Crankshaft Oil Seals Polini Evolution Viton® Piaggio
Article no.: P285.0001

Crankshaft Oil Seals Polini Evolution Viton® Piaggio

17,00 €
In stock
RRP
18,00 €
-6% Discount
Polini
Crankshaft Oil Seals Polini Evolution Viton® Derbi
Article no.: P285.0004

Crankshaft Oil Seals Polini Evolution Viton® Derbi

16,50 €
In stock
RRP
18,00 €
-8% Discount
Polini
Crankshaft Oil Seals Polini Evolution Viton® AM6
Article no.: P285.0003

Crankshaft Oil Seals Polini Evolution Viton® AM6

18,50 €
In stock
RRP
19,00 €
-3% Discount
Standard Parts
Crankshaft Bearings + Seals Rotax 122 - 123
Article no.: SP-42811

Crankshaft Bearings + Seals Rotax 122 - 123

37,00 €
In stock
RRP
40,05 €
-8% Discount
Polini
Crankshaft Bearing Set Polini Original Piaggio Ciao
Article no.: P282.0208

Crankshaft Bearing Set Polini Original Piaggio Ciao

9,70 €
In stock
RRP
11,50 €
-16% Discount
Polini
Crankshaft Bearings Polini MBK 51
Article no.: P282.0010

Crankshaft Bearings Polini MBK 51

29,50 €
In stock
RRP
34,00 €
-13% Discount
Standard Parts
Crankshaft Bearings + Seals Puch Maxi E50 old engine
Article no.: MOF-44405

Crankshaft Bearings + Seals Puch Maxi E50 old engine

7,40 €
In stock
MVT
Oil Seal crankshaft MVT G2 / G3 / G4
Article no.: MVT-SPIG234

Oil Seal crankshaft MVT G2 / G3 / G4

8,40 €
In stock
RRP
9,90 €
-15% Discount
Polini
Crankshaft Seals Polini 20 and 25 mm Vespa 50cc Special / 125cc Primavera
Article no.: P285.0111

Crankshaft Seals Polini 20 and 25 mm Vespa 50cc Special / 125cc Primavera

11,50 €
In stock
RRP
12,00 €
-4% Discount
Doppler
Crankshaft Oil Seals Doppler FKM Peugeot 103
Article no.: CGN516945

Crankshaft Oil Seals Doppler FKM Peugeot 103

7,90 €
In stock
10,00 €
-21% Discount
Doppler
Crankshaft Oil Seals Doppler FKM MBK 51
Article no.: CGN516947

Crankshaft Oil Seals Doppler FKM MBK 51

7,90 €
In stock
9,80 €
-19% Discount
Standard Parts
Crankshaft Oil Seal nitrile Peugeot 103 Fox
Article no.: CGN526222

Crankshaft Oil Seal nitrile Peugeot 103 Fox

4,80 €
In stock
Naraku
Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM vertical
Article no.: NK104.33

Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM vertical

51,00 €
In stock
Naraku
Crankshaft Bearings HD + Seals Naraku Kymco / SYM horizontal
Article no.: NK104.26

Crankshaft Bearings HD + Seals Naraku Kymco / SYM horizontal

54,00 €
In stock
Naraku
Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM horizontal
Article no.: NK104.25

Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM horizontal

48,00 €
In stock
Naraku
Crankshaft Bearings HD and Oil Seals FKM Naraku Honda X8R
Article no.: NK104.11

Crankshaft Bearings HD and Oil Seals FKM Naraku Honda X8R

47,00 €
In stock
48,00 €
-2% Discount
Naraku
Oil Seal Naraku FKM Premium 24x43x6mm
Article no.: NK103.96

Oil Seal Naraku FKM Premium 24x43x6mm

4,80 €
In stock
Naraku
Oil Seal Naraku FKM Premium 22x38x6mm
Article no.: NK103.91

Oil Seal Naraku FKM Premium 22x38x6mm

5,40 €
In stock
Naraku
Oil Seal Naraku FKM Premium 17x30x6mm
Article no.: NK103.47

Oil Seal Naraku FKM Premium 17x30x6mm

5,40 €
In stock
Doppler
Dummy Bearing Doppler 6203 alu CNC black
Article no.: CGN512309

Dummy Bearing Doppler 6203 alu CNC black

5,50 €
In stock
6,00 €
-8% Discount
Standard Parts
Wheel Bearing Kit front wheel reinforced Piaggio Ciao
Article no.: IP42153

Wheel Bearing Kit front wheel reinforced Piaggio Ciao

27,00 €
In stock
Polini
Crankshaft Bearings Polini Evolution Piaggio Ciao (6202.C4)
Article no.: P280.0040

Crankshaft Bearings Polini Evolution Piaggio Ciao (6202.C4)

6,60 €
In stock
Polini
Oil Seal Polini Piaggio Ciao / Bravo
Article no.: P285.0122

Oil Seal Polini Piaggio Ciao / Bravo

3,20 €
In stock
Polini
Crankshaft Bearing Set Polini Vespa PX80 - 200
Article no.: P282.0007

Crankshaft Bearing Set Polini Vespa PX80 - 200

34,00 €
In stock
RRP
50,00 €
-32% Discount
Standard Parts
Support Plate for crankcase oil seal Peugeot 103
Article no.: L-SP163932

Support Plate for crankcase oil seal Peugeot 103

4,10 €
In stock
Prox
Oil Seals crankshaft Prox KX 500
Article no.: PROX-094489

Oil Seals crankshaft Prox KX 500

8,20 €
In stock
RRP
11,50 €
-29% Discount
Prox
Oil Seals crankshaft Prox CR 80 / 85
Article no.: PROX-094181

Oil Seals crankshaft Prox CR 80 / 85

10,00 €
In stock
Sale
Prox
Crankshaft Bearing Prox KX 65 / 85 / RM 85
Article no.: PROX-09240552

Crankshaft Bearing Prox KX 65 / 85 / RM 85

10,00 €
In stock
Sale
Prox
Crankshaft Bearing Prox KXF 250
Article no.: PROX-09240551

Crankshaft Bearing Prox KXF 250

28,50 €
In stock
RRP
38,50 €
-26% Discount
Prox
Crankshaft Bearing Prox PW 80
Article no.: PROX-09240550

Crankshaft Bearing Prox PW 80

10,50 €
In stock
RRP
15,00 €
-30% Discount
Prox
Crankshaft Bearing Prox PW 50 / KTM 50
Article no.: PROX-09240548

Crankshaft Bearing Prox PW 50 / KTM 50

4,10 €
In stock
RRP
11,00 €
-63% Discount
Prox
Crankshaft Bearing + Oil Seal Kit Prox SX 65 2000-2008
Article no.: PROX-09240362

Crankshaft Bearing + Oil Seal Kit Prox SX 65 2000-2008

30,50 €
In stock
RRP
47,50 €
-36% Discount
Prox
Crankshaft Bearing + Oil Seal Kit Prox KX 60 / 65 / 80 / 85
Article no.: PROX-09240349

Crankshaft Bearing + Oil Seal Kit Prox KX 60 / 65 / 80 / 85

26,00 €
In stock
Sale
Prox
Crankshaft Bearing + Oil Seal Kit Prox YZ 80 / 85
Article no.: PROX-09240311

Crankshaft Bearing + Oil Seal Kit Prox YZ 80 / 85

25,00 €
In stock
Sale
Prox
Crankshaft Bearing + Oil Seal Kit Prox CRF 250 2004-2017
Article no.: PROX-09240299

Crankshaft Bearing + Oil Seal Kit Prox CRF 250 2004-2017

88,00 €
In stock
Sale
Prox
Crankshaft Bearing + Oil Seal Kit Prox CR 80/85
Article no.: PROX-09240294

Crankshaft Bearing + Oil Seal Kit Prox CR 80/85

41,00 €
In stock
Sale
Standard Parts
Crankshaft Bearings and Oil Seals Tomos A35
Article no.: MF33.13900

Crankshaft Bearings and Oil Seals Tomos A35

15,00 €
In stock
Hot Rods
Crankshaft Bearings and Oil Seals Hot Rods Suzuki RM-Z 250
Article no.: HR-K074

Crankshaft Bearings and Oil Seals Hot Rods Suzuki RM-Z 250

87,00 €
In stock
RRP
105,00 €
-17% Discount
Hot Rods
Crankshaft Bearings and Oil Seals Hot Rods YZF 250 2003-2009
Article no.: HR-K021

Crankshaft Bearings and Oil Seals Hot Rods YZF 250 2003-2009

72,00 €
In stock
Sale
Hot Rods
Crankshaft Bearings + Seals Hot Rods YZ 250 1990-1998. WR 250 1991-1997
Article no.: HR-K228

Crankshaft Bearings + Seals Hot Rods YZ 250 1990-1998. WR 250 1991-1997

85,00 €
In stock
RRP
102,00 €
-17% Discount
Hot Rods
Crankshaft Bearings and Oil Seals Hot Rods RM 85
Article no.: HR-K233

Crankshaft Bearings and Oil Seals Hot Rods RM 85

45,00 €
In stock
Sale
Hot Rods
Crankshaft Bearings and Oil Seals Hot Rods SX 85 2004-2021
Article no.: HR-K048

Crankshaft Bearings and Oil Seals Hot Rods SX 85 2004-2021

81,00 €
In stock
RRP
120,00 €
-33% Discount
Sale
Hot Rods
Crankshaft Bearings and Oil Seals Hot Rods KX 65 / 85
Article no.: HR-K004

Crankshaft Bearings and Oil Seals Hot Rods KX 65 / 85

58,00 €
In stock
RRP
70,00 €
-17% Discount
SKF
Bearing SKF 6203 C3 TN9 17x40x12mm polymer cage
Article no.: SKF6203TN9/C3

Bearing SKF 6203 C3 TN9 17x40x12mm polymer cage

9,30 €
In stock
SKF
Crankshaft Bearing SKF 6302-QR - 16x42x13mm steel MBK 51
Article no.: SKF6302QR

Crankshaft Bearing SKF 6302-QR - 16x42x13mm steel MBK 51

14,00 €
In stock
SKF
Crankshaft Bearing ceramic SKF 6204 C4 20x47x14mm Minarelli
Article no.: EKP-162515

Crankshaft Bearing ceramic SKF 6204 C4 20x47x14mm Minarelli

87,50 €
In stock
Athena
Oil Seal Set engine Husqvarna WR / CR 250 1999-2013
Article no.: AT-09343101

Oil Seal Set engine Husqvarna WR / CR 250 1999-2013

49,50 €
In stock
Athena
Oil Seal Kit engine Yamaha YZ 85
Article no.: AT-09343100

Oil Seal Kit engine Yamaha YZ 85

26,00 €
In stock
Sale
Athena
Oil Seal Kit engine Suzuki RM-Z 250
Article no.: AT-09343088

Oil Seal Kit engine Suzuki RM-Z 250

13,00 €
In stock
RRP
34,00 €
-62% Discount
Athena
Oil Seal Kit engine KTM SX / EXC 125
Article no.: AT-09343087

Oil Seal Kit engine KTM SX / EXC 125

28,00 €
In stock
Sale
Athena
Oil Seal Kit engine Kawasaki KX 60
Article no.: AT-09343078

Oil Seal Kit engine Kawasaki KX 60

20,50 €
In stock
RRP
30,00 €
-32% Discount
Athena
Oil Seal Set engine YZ 125 1994-2000
Article no.: AT-09343074

Oil Seal Set engine YZ 125 1994-2000

47,00 €
In stock
Athena
Oil Seal Set engine YZ 125 2001-2004
Article no.: AT-09343068

Oil Seal Set engine YZ 125 2001-2004

21,50 €
In stock
RRP
40,50 €
-47% Discount
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Crankshaft bearings

Crankshaft bearings are generally classic ball bearings. They sit next to the crank webs on the crankshaft and in the crankcase.

This is a wear part that, despite generally high durability, needs to be replaced from time to time.

Replacing crankshaft bearings

Maintenance and repair

It is recommended to always replace the bearings together with the crankshaft seals. We carry complete kits with bearings and seals, but all parts can also be ordered individually.

Worn bearings are usually loud and cause strong vibrations. This is an indication that they should be replaced. If you want to replace them preemptively, use the owner’s manual and the manufacturer’s specifications as a reference.

We carry replacement bearings from well-known brands such as MotoForce, ProX, Athena, HotRod, or SKF.

Engine tuning

On tuned engines, it may be necessary to install reinforced bearings. This mainly affects 50cc scooters and geared bikes, where there are very powerful cylinders that reach significantly higher rpm than the stock versions.

In our shop, we have crankshaft bearings and seals from well-known tuning brands such as Stage6 R/T, Polini, Malossi, or Bidalot, and others are available.

WARNING! To replace the bearings, the engine has to be completely opened. It is important to remember to order gear oil or engine oil for 4-stroke engines, as well as a complete gasket set. In addition, a tool is needed to pull the flywheel.

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