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Bearings and Oil Seals

(281 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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Polini
Crankshaft Bearing Set Polini Derbi
Article no.: P282.0004
69

Crankshaft Bearing Set Polini Derbi

25,00 €
In stock
RRP
29,00 €
-14% Discount
Polini
Crankshaft Bearings Polini + Oil Seals Minarelli AM6
Article no.: P282.0003
29

Crankshaft Bearings Polini + Oil Seals Minarelli AM6

28,00 €
In stock
RRP
31,00 €
-10% Discount
Sale
Polini
Crankshaft Bearings Polini + Oil Seals Yamaha Aerox / BW's
Article no.: P282.0002
69

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

29,00 €
In stock
RRP
31,00 €
-6% Discount
Sale
Polini
Crankshaft Bearing Set Polini Piaggio / Gilera / Aprilia / Vespa
Article no.: P282.0001
15

Crankshaft Bearing Set Polini Piaggio / Gilera / Aprilia / Vespa

39,00 €
In stock
RRP
41,00 €
-5% Discount
Polini
Crankshaft Oil Seals Polini Evolution Viton® Minarelli
Article no.: P285.0002
26

Crankshaft Oil Seals Polini Evolution Viton® Minarelli

20,00 €
In stock
Standard Parts
Crankshaft Bearings + Seals Rotax 122 - 123
Article no.: SP-42811

Crankshaft Bearings + Seals Rotax 122 - 123

33,00 €
In stock
RRP
40,05 €
-18% Discount
Sale
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 MBK 51
Article no.: CGN516947

Crankshaft Oil Seals Doppler FKM MBK 51

7,90 €
In stock
9,70 €
-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

45,00 €
In stock
Sale
Naraku
Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM horizontal
Article no.: NK104.25

Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM horizontal

38,00 €
In stock
48,00 €
-21% Discount
Sale
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
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
Polini
Oil Seal Polini Piaggio Ciao / Bravo
Article no.: P285.0122

Oil Seal Polini Piaggio Ciao / Bravo

3,20 €
In stock
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

9,00 €
In stock
10,00 €
-10% Discount
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

33,50 €
In stock
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

89,00 €
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

42,00 €
In stock
Sale
Standard Parts
Crankshaft Bearings and Oil Seals Tomos A35
Article no.: MF33.13900

Crankshaft Bearings and Oil Seals Tomos A35

13,00 €
In stock
Sale
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

67,00 €
In stock
73,00 €
-8% Discount
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

51,00 €
In stock
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

82,00 €
In stock
RRP
120,00 €
-32% 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

12,00 €
In stock
Sale
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

44,00 €
In stock
Sale
Athena
Oil Seal Kit engine Yamaha YZ 85
Article no.: AT-09343100

Oil Seal Kit engine Yamaha YZ 85

27,00 €
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

37,00 €
In stock
47,00 €
-21% Discount
Sale
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
Athena
Oil Seal Set engine YZ 125 1990-1993
Article no.: AT-09343066

Oil Seal Set engine YZ 125 1990-1993

27,50 €
In stock
RRP
48,00 €
-43% Discount
Athena
Bearing 6204 C3 20x47x14mm Koyo
Article no.: AT-09240145

Bearing 6204 C3 20x47x14mm Koyo

6,60 €
In stock
Standard Parts
Crankshaft Bearing E20 brass cage Puch Maxi 20x47x12mm (x1)
Article no.: LAG.E20

Crankshaft Bearing E20 brass cage Puch Maxi 20x47x12mm (x1)

15,00 €
In stock
RRP
24,00 €
-38% Discount
Polini
Oil Seal Polini (crankshaft) P.R.E. 70cc Piaggio
Article no.: P285.0144

Oil Seal Polini (crankshaft) P.R.E. 70cc Piaggio

19,50 €
In stock
RRP
20,00 €
-3% Discount
Polini
Oil Seal Polini (crankshaft) P.R.E. 100cc Piaggio
Article no.: P285.0143

Oil Seal Polini (crankshaft) P.R.E. 100cc Piaggio

19,00 €
In stock
RRP
29,00 €
-34% Discount
Standard Parts
Crankshaft Bearing Set reinforced C3 polymer cage MBK 51
Article no.: CGN505184

Crankshaft Bearing Set reinforced C3 polymer cage MBK 51

23,00 €
In stock
SKF
Crankshaft Bearing Set SKF MBK 51
Article no.: CGN323821

Crankshaft Bearing Set SKF MBK 51

27,00 €
In stock
RMS
Bearing + Oil Seal Kit crankshaft RMS Vespa 125cc Primavera / ET3
Article no.: R100200760

Bearing + Oil Seal Kit crankshaft RMS Vespa 125cc Primavera / ET3

12,00 €
In stock
RRP
32,00 €
-63% Discount
Standard Parts
Crankshaft Bearing Set Solex
Article no.: CGN491042

Crankshaft Bearing Set Solex

9,00 €
In stock
11,50 €
-22% Discount
Sale
Standard Parts
Crankshaft Oil Seal 15x24x5mm Piaggio Ciao PX (x1)
Article no.: CGN3268

Crankshaft Oil Seal 15x24x5mm Piaggio Ciao PX (x1)

4,70 €
In stock
Stage6
O-Ring oil filler cap Stage6 Piaggio
Article no.: S6-SSP141ET01

O-Ring oil filler cap Stage6 Piaggio

0,90 €
Ready for dispatch shortly
1,20 €
-25% Discount
MotoForce
Oil Seal crankshaft Peugeot 103
Article no.: MF96.00029

Oil Seal crankshaft Peugeot 103

2,90 €
In stock soon
SKF
Ball Bearing SKF 6303 C4 17x47x14mm steel cage
Article no.: SKF6303/C4

Ball Bearing SKF 6303 C4 17x47x14mm steel cage

12,50 €
In stock soon
Malossi
Oil Seal Kit (x3) Malossi FKM / PTFE Minarelli AM6
Article no.: M6615757

Oil Seal Kit (x3) Malossi FKM / PTFE Minarelli AM6

26,50 €
Currently not in stock
Standard Parts
Oil Seal Kit GY6 50cc 139QMB
Article no.: BT17304
1

Oil Seal Kit GY6 50cc 139QMB

4,40 €
Currently not in stock
4,60 €
-4% Discount
Naraku
Crankshaft Bearing Set Naraku HD Peugeot 100cc 2T
Article no.: NK102.97

Crankshaft Bearing Set Naraku HD Peugeot 100cc 2T

39,00 €
Currently not in stock
Naraku
Crankshaft Bearing + Oil Seal Kit Honda 125-150 4-stroke
Article no.: NK168.00

Crankshaft Bearing + Oil Seal Kit Honda 125-150 4-stroke

40,50 €
Currently not in stock
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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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