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Bearings and Oil Seals

(283 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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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

40,00 €
In stock
Sale
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)

24,00 €
In stock
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

29,00 €
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

11,50 €
In stock
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
MotoForce
Oil Seal crankshaft Peugeot 103
Article no.: MF96.00029

Oil Seal crankshaft Peugeot 103

2,90 €
In stock soon
MotoForce
Oil Seals for crankshaft Minarelli
Article no.: MF96.00030
20

Oil Seals for crankshaft Minarelli

6,50 €
In stock soon
RRP
7,10 €
-8% Discount
Stage6
Dummy Bearing 20x52x12mm Piaggio 50cc (x2)
Article no.: S6-8039103

Dummy Bearing 20x52x12mm Piaggio 50cc (x2)

12,00 €
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 €
In stock soon
Malossi
Crankshaft Bearings Malossi Piaggio Ciao / Bravo
Article no.: M664678E

Crankshaft Bearings Malossi Piaggio Ciao / Bravo

22,00 €
In stock soon
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 €
In stock soon
Standard Parts
Crankshaft Bearing Set steel cage MBK 51
Article no.: CGN492708
1

Crankshaft Bearing Set steel cage MBK 51

21,00 €
In stock soon
Naraku
Crankshaft Bearings + Seals Kymco Dink / Grand Dink / People / Super 9 / Top Boy / Yup
Article no.: NK100.33

Crankshaft Bearings + Seals Kymco Dink / Grand Dink / People / Super 9 / Top Boy / Yup

37,50 €
In stock soon
RMS
Bearing SKF 6203-C5 TN9 - 17x40x12mm Vespa Primavera
Article no.: R100200080

Bearing SKF 6203-C5 TN9 - 17x40x12mm Vespa Primavera

8,90 €
In stock soon
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 soon
8,40 €
-12% Discount
Naraku
Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM horizontal
Article no.: NK104.02

Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM horizontal

41,50 €
In stock soon
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 soon
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 soon
Naraku
Oil Seal Naraku FKM Premium 17x30x6mm
Article no.: NK103.47

Oil Seal Naraku FKM Premium 17x30x6mm

5,80 €
In stock soon
Standard Parts
Crankshaft Bearings and Oil Seals Yamaha Aerox 4-stroke
Article no.: SP-49395

Crankshaft Bearings and Oil Seals Yamaha Aerox 4-stroke

29,50 €
In stock soon
30,50 €
-3% 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 soon
SKF
Crankshaft Bearing SKF 6204 20x47x14mm ceramic balls
Article no.: EKP-162516

Crankshaft Bearing SKF 6204 20x47x14mm ceramic balls

27,00 €
In stock soon
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 soon
Standard Parts
Crankshaft Oil Seal - 24x43x6mm Kymco
Article no.: OE-KYM20926

Crankshaft Oil Seal - 24x43x6mm Kymco

3,50 €
Currently not in stock
Naraku
Crankshaft bearings Naraku, Honda
Article no.: NK100.66

Crankshaft bearings Naraku, Honda

42,00 €
Currently not in stock
Polini
Crankshaft Bearing Set Polini Original MBK 51
Article no.: P282.0210

Crankshaft Bearing Set Polini Original MBK 51

25,50 €
Currently not in stock
RRP
30,00 €
-15% Discount
Polini
Crankshaft Bearing Set Polini For Race Peugeot 103
Article no.: P282.0009

Crankshaft Bearing Set Polini For Race Peugeot 103

18,50 €
Currently not in stock
RRP
22,00 €
-16% Discount
Naraku
Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM vertical (GR1)
Article no.: NK104.07

Crankshaft Bearings HD + Seals FKM Naraku Kymco / SYM vertical (GR1)

38,00 €
Currently not in stock
Naraku
Crankshaft Bearing Set Naraku Peugeot 100cc 2-stroke
Article no.: NK104.12

Crankshaft Bearing Set Naraku Peugeot 100cc 2-stroke

47,50 €
Currently not in stock
Naraku
Crankshaft Bearings and Oil Seals FKM Naraku Honda X8R
Article no.: NK104.24

Crankshaft Bearings and Oil Seals FKM Naraku Honda X8R

61,00 €
Currently not in stock
Naraku
Crankshaft Bearing Set Naraku HD Morini 50cc 2T
Article no.: NK104.06

Crankshaft Bearing Set Naraku HD Morini 50cc 2T

38,50 €
Currently not in stock
Prox
Crankshaft Bearing + Oil Seal Kit Prox PW 50
Article no.: PROX-09240308

Crankshaft Bearing + Oil Seal Kit Prox PW 50

33,00 €
Currently not in stock
Prox
Crankshaft Bearing + Oil Seal Kit Prox Honda CR 125
Article no.: PROX-09240297

Crankshaft Bearing + Oil Seal Kit Prox Honda CR 125

54,00 €
Currently not in stock
Standard Parts
Crankshaft Bearings and Oil Seals PGO Big Max
Article no.: MF33.18600

Crankshaft Bearings and Oil Seals PGO Big Max

30,00 €
Currently not 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

108,00 €
Currently not in stock
RRP
120,00 €
-10% Discount
Hot Rods
Crankshaft Bearings + Seals Hot Rods KTM SX 250 / EXC 300
Article no.: HR-K066

Crankshaft Bearings + Seals Hot Rods KTM SX 250 / EXC 300

84,50 €
Currently not in stock
Athena
Bearing 63 / 22 C3-KOYO
Article no.: AT-09240148

Bearing 63 / 22 C3-KOYO

13,00 €
Currently not in stock
CIF
Crankshaft Bearing Set Piaggio 50-100cc 4T
Article no.: L-SP38331

Crankshaft Bearing Set Piaggio 50-100cc 4T

42,00 €
Currently not in stock
Naraku
Crankshaft bearings Naraku, Honda X8R
Article no.: NK100.75

Crankshaft bearings Naraku, Honda X8R

38,50 €
Currently not in stock
39,00 €
-1% Discount
Stage6 R/T
Oil Seals crankshaft + water pump Stage6 R/T Derbi
Article no.: S6-8041939

Oil Seals crankshaft + water pump Stage6 R/T Derbi

18,50 €
Currently not in stock
RRP
20,00 €
-8% Discount
Schmitt
Ball Bearings metal cage C3 + FKM seals Schmitt Evolution + rotation direction Simson M500
Article no.: STT54280

Ball Bearings metal cage C3 + FKM seals Schmitt Evolution + rotation direction Simson M500

35,00 €
Currently not in stock
Prox
Crankshaft Bearings + Seals Prox SX-F / FC 250 - 350 after 2019
Article no.: PROX-23.CBS63017

Crankshaft Bearings + Seals Prox SX-F / FC 250 - 350 after 2019

125,00 €
Currently not in stock
Prox
Oil Seals crankshaft Prox KX 250
Article no.: PROX-094488

Oil Seals crankshaft Prox KX 250

28,00 €
Currently not in stock
Prox
Oil Seals crankshaft Prox KX 125
Article no.: PROX-094484

Oil Seals crankshaft Prox KX 125

18,00 €
Currently not in stock
Prox
Oil Seals crankshaft Prox YZ 125 2001-2004
Article no.: PROX-094290

Oil Seals crankshaft Prox YZ 125 2001-2004

18,00 €
Currently not in stock
Prox
Oil Seals crankshaft Prox YZ 250 after 2001
Article no.: PROX-094289

Oil Seals crankshaft Prox YZ 250 after 2001

18,00 €
Currently not in stock
Prox
Oil Seals crankshaft Prox YZ 80 / 85
Article no.: PROX-094280

Oil Seals crankshaft Prox YZ 80 / 85

8,80 €
Currently not in stock
Prox
Oil Seals crankshaft Prox CR 250
Article no.: PROX-094187

Oil Seals crankshaft Prox CR 250

14,00 €
Currently not in stock
Prox
Oil Seals crankshaft Prox CR 125
Article no.: PROX-094184

Oil Seals crankshaft Prox CR 125

12,00 €
Currently not in stock
Prox
Oil Seals crankshaft Prox YZ 65 / YZ 85
Article no.: PROX-09351028

Oil Seals crankshaft Prox YZ 65 / YZ 85

16,00 €
Currently not in stock
Prox
Fork Seals Prox 48x58x10 KXF 450 2013-2014 / RM-Z 250 after 2016
Article no.: PROX-09350548

Fork Seals Prox 48x58x10 KXF 450 2013-2014 / RM-Z 250 after 2016

34,00 €
Currently not in stock
Prox
Oil Seals crankshaft Prox YZF / WRF 450
Article no.: PROX-09350538

Oil Seals crankshaft Prox YZF / WRF 450

20,00 €
Currently not in stock
Prox
Oil Seals crankshaft Prox SX / EXC 250 1995-2003
Article no.: PROX-09350513

Oil Seals crankshaft Prox SX / EXC 250 1995-2003

32,00 €
Currently not in stock
Prox
Oil Seals crankshaft Prox KTM / Husqvarna
Article no.: PROX-09350510

Oil Seals crankshaft Prox KTM / Husqvarna

23,00 €
Currently not in stock
Prox
Oil Seals crankshaft Prox KTM / Husqvarna before 2014
Article no.: PROX-09350459

Oil Seals crankshaft Prox KTM / Husqvarna before 2014

20,00 €
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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