Bearings

July 13, 2014

Contents:    1. Ball Bearings    2. Loose Balls    3. Needle Bearings

Bearings can mean ball bearings, needle bearings, and roller bearings. Needles are just thin long rollers. Ball bearings can mean individual loose balls. Or the balls can be in a ring, separate from the inner and outer races, in a “3-piece bearing”. Or everything can be all in one piece, in a “one piece bearing” or “cassette bearing”, the most common kind. The one-piece bearing shown at left, is also known as “full contact” because the balls touch the races in two wide arcs. It is also called “radial” because the center of the contact area is perpendicular or radial to the rotation. Three of the bearings listed below, Bo15, L17 and E20, are “angular contact” where the contact angle is not 90 degrees to the rotation. Angular kinds are for carrying some side loads as well as radial loads.  

 

1. Ball Bearings

 

 

Versions: Open, Shielded or Sealed 

      ” means open (no shields or seals)
Z    ” means shield on one side only
ZZ  ” means shields on both sides
RS  ” means rubber seal on one side
2RS” means rubber seals on both sides

 


8 x 22 x 7                                                       608

608-PPP    N/A    open      generic          Tomos A3, A35 2-speed trans cover, front 
608-ZPP    N/A   1-shield   generic    
608-ZZP    N/A   2-shield   generic          skateboard wheel bearing
608-RSP    N/A   1-seal      generic     
608-2RS     $6   2-seal    RCBD China     


10 x 26 x 8                                                     6000

6000-PPP    $6    open    GMN Germany   Tomos A3, A35 2-speed trans cover, rear
6000    PP   $6    open      Nachi Japan     Motobecane rear wheel, right side only
6000-ZZP    $5   2-shield   GMR Korea    
6000-RSP   N/A   1-seal      generic    
6000-2RS   N/A   2-seal      generic    


10 x 28 x 8                                                    16100

16100-PPP  N/A   open      Steyr Austria    Puch 2-speed trans cover rear


10 x 30 x 9                                                     6200

6200-PPP    $6    open      generic    
6200-ZPP    $6   1-shield   KBC Korea      Peugeot 103 SP rear spoke wheel, R&L 
6200-ZZP    $5   2-shield   KBC Korea
6200-RSP   $15  1-seal     SKF Italy         Motobecane rear wheel, left side only    
6200-2RS   N/A   2-seal     generic    


12 x 28 x 8                                                     6001

6001-PPP    $6    open      INA Taiwan     Kreidler 2-speed trans cover, F&R, Jawa 207 middle shaft R&L
6001-ZPP    $6   1-shield   INA Taiwan
6001-ZZP    $5   2-shield   INA Taiwan    for sealed bearing upgrade on 29mm ID wheels (w/1mm sleeve)
6001-RSP    $7   2-seal     ABI China
6001-2RS    $7   2-seal     ABI China       Peugeot 103 SPB F&R mag wheels, R&L 


12 x 30 x 8                                                   16101

16101-ZZP$20   2-shield   generic         for sealed bearing upgrade on 30mm ID wheels


12 x 32 x 10                                                   6201

6201-PPP    $7    open       GMB Korea     Indian, Trac, General, Derbi, others wheels
6201-ZZP  $10   2-shield   Nachi Japan    Tomos, most wheels w/12mm axles, except dual chain rears
6201-ZZP    $7   2-shield   GMB Korea     for sealed bearing upgrade on 32mm ID wheels
6201-RSP   $10   1-seal     NTN Japan    
6201-2RS   $10   2-seal     SMT Japan    


12.7 x 35 x 11                                                 6202-8

6202-8-2RS  N/A   special    generic         Colombia wheels (1/2″ axle)  see vxb.com
6202-2RS   N/A    w/insert    generic        it’s a 6202 with a smaller center hole


15 x 32 x 9                                                      6002

6002      P$15    open      Steyr Austria   Puch 2-speed trans cover, front
6002-Z     P$8    open      generic    
6002-ZZ   P$8    open      generic     


15 x 35 x 11                                                     6202

6202-PPP    $8    open       generic        Sachs 504, 505, Batavus/Trac (Laura M56) crank R&L,
6202-PPP    $8    open       generic        Vespa (Piaggio), Demm crank R&L, others
6202-PPP    $8    open       generic        Minarelli, Kreidler driveshaft (left), Trac M56 middle shaft
6202-PPP    $8    open       generic        Indian/PC50 crank, left (mag), Vespa rear wheel
6202-ZPP    $8   1-shield    generic    
6202-ZZP    $8   2-shield   generic         Tomos Streetmate-R rear wheel (15mm axle)
6202-RSP   N/A   1-seal     generic    
6202-2RS   N/A   2-seal     generic    


15 x 40 x 10                                                   Bo15

Bo15-PPP    $30  3-piece  FAG Germany  Kreidler 2-speed crank, R&L


15 x 42 x 13                                                   6302

6302-PPP    $10   open        generic        Batavus (Laura M48), Angel/Speedbird (M48 copy) crank R&L 


16 x 42 x 13                                                   6302-16

6302-QR    N/A   special   SNR France       Motobecane crank R&L
6302-QR    N/A   special   FAG Germany     see treatland.tv
6302QR-PPP  N/A   special        SNR Fra
    it’s a 6302 with a larger center hole, with one side more “rounded”


17 x 30 x 7                                                     6903

6903-2RS    $15   2-seal       generic       


17 x 35 x 8                                                    16003

16003-PPP    $20   open      SKF Italy        


17 x 35 x 10                                                   6003

6003-PPP    $10   open       generic  


17 x 40 x 10                                                   L17

L17-PPP    $35  3-piece  Steyr Austria   Tomos A3 pre-1986 crank R&L, Puch 2-speed crank, left (mag),
L17-PPP    $35   3-piece   Steyr Austri   Sears Allstate (early Puch) crank R&L


17 x 40 x 12                                                   6203

6203-PPP    $8    open      generic       Minarelli V1, Morini MO1, MO2, M1, S5K2, Jawa crank R&L,
6203-PPP    $8    open      generic       Garelli 1-speed and 2-speed crank R&L,
6203-PPP    $8    open      generic       Peugeot 102 and 103 right crank
6203-PPP    $8    open      generic       Tomos late A3, A35, A55 2-speed (’86-on) crank R&L,
6203-PPP    $8    open      generic       Indian/PC50 crank, right (clutch), more…
6203-PPP    $8    open      generic        Derbi Variant, Puch 1-speed crank, left (mag),
6203-NR    $10   special    generic       Puch 1-speed crank, right (clutch)
6203-NR    $10   special    generic       it’s a 6203 with an outer clip and clip groove 
6203-ZPP    $8   1-shield   generic    
6203-ZZP    $8   2-shield   generic      


17 x 47 x 14                                                   6303

6303        $10      open     generic       Derbi (pre-’87) crank, right (clutch)


20 x 42 x 12                                                   6004

6004         $8      open     SKF Italy      Morini S5?, Jawa 207 driveshaft R&L, Indian driveshaft leftL,
6004         $8      open     SKF Italy      Garelli vertical 2-speed right drive shaft


20 x 47 x 12                                                   E20

E20           $25   3-piece  Steyr Austria  Puch 2-speed crank, right (clutch)


20 x 47 x 14                                                   6204

6204         $12     open     generic       Peugeot 103 crank, left (clutch), Derbi (’87-on) crank, right (clutch)


20 x 52 x 15                                                   6304

6304         $15     open     generic    


25 x 47 x 12                                                   6005

6005         $15     open     generic       Puch 2-speed driveshaft (left)


25 x 52 x 15                                                    6205

6205         $18     open     generic      Derbi driveshaft, right


30 x 55 x 9                                                   16006

16006        N/A     open     generic       Kreidler 2-speed clutch (right)


30 x 55 x 13                                                   6006

6006         $15     open     generic       Tomos A3, A35 2-speed driveshaft (left)


2. Loose Balls

Size    Inch     Each         Applications

1/8     0.125  $0.10     freewheel (rear pedal sprocket than spins free for coasting) 
5/32   0.156  $0.10     steering – Puch Maxi, most other mopeds and bicycles
3/16   0.187  $0.10     Leleu rear wheel (Puch type, spoke)
5mm   0.197  $0.10     steering – Tomos, Puch Magnum, others (heavy duty)
7/32   0.219  $0.10     Leleu front wheel, Puch rear “snowflake” mag (dual chain)
1/4     0.250  $0.10     Grimeca front, Grimeca rear (single chain), others
9/32   0.281   N/A
5/16   0.312   N/A
3/8     0.375   N/A   

  


 

3. Needle Bearings

More to follow…

 


Seals

July 13, 2014

Oil Seals are for sealing rotating or sliding shafts where they emerge from a sealed compartment. Fork seals and shifter shaft seals are sliding type. Engine seals are rotating type. Besides keeping oil from leaking out, some are also pressure seals, keeping air in (or out). On a two stroke engine, the crankshaft seals are very important because the crankcase has the mist of gasoline, oil and air inside it. When the crank seals leak, the engine won’t idle or accelerate good. The seal inner lip has a circular thin coil spring that holds onto the rotating shaft. Click to enlarge and see the little coils of the circular spring. Metric seals are specified by their inner, outer, and thickness, in mm.

 

Part #         Description      Price       Application            Location           Nearby Bearing


                5  to  10 mm   H O L E
E535-00-50  seal 05x30x6         $7  78-83 Indian                   shifter (engage) shaft
106019        seal 06x15x4         N/A  80-85 Morini M101                    shifter shaft
2810361      seal 10x16x4         N/A  86-89 Derbi “flat reed”             shifter shaft


                      1 2 mm    H O L E
8228630      seal 12x18x3         $8  76-86 Derbi “non & pyr reed”      shifter shaft
12x19x5      seal 12x19x5         N/A
12x22x7      seal 12x22x7         $8  85-88 MX3/MX5 bike motor        R crank (mag)     6202


                      1 3 mm    H O L E
106021        seal 13x19x3         N/A  80-85 Morini M101
S008766     seal 13x19x3           76-86 Vespa Ciao non-var.      rear pulley shaft    needle
S017002     seal 13x22x4         $12  76-86 Vespa variator models    rear pulley shaft    needle


                      1 4 mm    H O L E
816181        seal 14x30x7        $12  76-78 Batavus M48                   R crank (mag)         6302


                      1 5 mm    H O L E
substitute         seal 15x20x2.5       $2  generic square buna-type rubber ring 15 x 2.5
8592P367      seal 15x21x3         $6  76-79 Solo Odyssey                 clutch inner        needle
592P367          continued >>>         76-80 batavus M48 replaces felt clutch inner seal   needle
19089          seal 15x21x4         $7  74-80 Motobecane 7,40,50,50V   L&R crank      6302QR
15x24x4       seal 15x24x4         $7
4790            seal 15x24x5         $7  76-80 Minarelli V1                        pedal shaft           none
4790                 continued >>>         76-80 Minarelli V1                      sprocket shaft        6202
106008              continued >>>        76-80 Morini                             sprocket shaft         6202
112978              continued >>>        74-on Vespa                             L (only) crank          6202
106003         seal 15x24x7         $6  76-80 Morini                          sprocket shaft         6202
15x24x7             continued >>>        77-80 Kreidler                             L crank (mag)        B015
630004000       continued >>>         77-85 Sachs 505                             pedal shaft
15x24x7            continued >>>         76-85 Jawa
15x25x5        seal 15x25x5         N/A  77-80 Kreidler                        R crank (clutch)     B015
E611-00-50   seal 15x25x6         $8  78-83 Indian                         L crank (mag)      6202
15×25.5×7    seal 15×25.5×7        $8  77-83 Honda PA50, NC50       R crank (mag)
15×25.5×7         continued >>>       77-83 Honda NA50, NU50       R crank (mag)
50116          seal 15x27x7         $6  76-85 Jawa
B2-47            seal 15x30x5         N/A  78-85 Batavus/Trac M56               middle shaft      6202
15x30x5.5     seal 15x30x5.5      $6  75-85 Sachs 504/505                  L crank (clutch)   6202
29868000     seal 15x30x6         N/A  76-85 Garelli
8228400       seal 15x30x7          $7  76-82 Derbi “non reed”              sprocket shaft    6203
15x30x7             continued >>>         85-88 MX3/MX5 bike motor    L crank (clutch)  6202
15x30x7             continued >>>         76-78 Angel/Speed Bird           R crank (mag)      6302
15x30x8       seal 15x30x8          $8
750015         seal 15x32x5/5.5    $7  76-85 Sachs 504/505                  sprocket shaft
E2-45            seal 15x32x7/7.5  $10  78-85 Batavus/Trac                    L crank (mag)      6202
15x35x7        seal 15x35x7          $7  76-85 Sachs 504/505                   R crank (mag)    6202
15x35x7              continued >>>        77-80 Colombia (Solo engine)       R crank (mag)
15x35x10      seal 15x35x10       N/A  76-80 Benelli/Moto Guzzi            L crank (mag)
15x42x13      seal 15x42x13       N/A  81-86 Derbi “pyramid reed”        sprocket shaft   6203


                      1 6 mm    H O L E
29867100      seal 16x20x2.5        N/A  76-86 Garelli horizontal 1-spd     L&R pedal shaft   none
substitute         seal 16x20x2.0        $2  generic square buna-type rubber ring 16 x 2
88481591        seal 16x21x4        N/A  76-78 Batavus M48                      pulley              needle
substitute         seal 15x20x2.5       $2  fits tight on, and spins with, 16mm crankshaft
88235300       seal 16x24x4          $7  76-89 Derbi “non & pyr reed”      L&R  pedal shaft   none
106004         seal 16x24x5          $7  76-80 Morini MO1,MO2,M1              pedal shaft     none
200266         seal 16x24x6          $7  74-on Tomos A3,A35,A55                R pedal shaft    none
37616           seal 16x30x4.5       $5  76-80 Peugeot 102/103                 R crank (mag)    6203
16x30x7       seal 16x30x7          $8
19858           seal 16.5x23x3    $10  76-80 Motobecane 7,40,50,50V           fork              none


                      1 7 mm    H O L E
17x23x3       seal 17x23x3           $8
17x25x4       seal 17x25x4          N/A  76-86 Vespa Ciao (non variator) rear pulley shaft    needle
17×25.5×7   seal 17×25.5×7    $12  77-83 Honda PA50               L crank (clutch)
17x28x5       seal 17x28x5           $8
6125230       seal 17x28x6          $8  76-86 Derbi “non & pyr reed”       R crank (clutch)  6303
6125230             continued >>>        76-86 Derbi “non & pyr reed”       L crank (mag)     6203
50112           seal 17x28x7          $7  76-85 Jawa                                   L&R crank
17x28x7              continued >>>        78-79 Tas Moprix/Speed Bird       R crank (mag)
29867800     seal 17x30x5         $10  76-86 Garelli
29868100     seal 17x30x6/6.5   $10  76-86 Garelli 1-speed                R crank (mag)
0F02500231 seal 17x30x7           $8  86-89 Derbi “flat reed”                L crank (mag)      6203
0F02500231       continued >>>         86-89 Derbi “flat reed”                R crank (clutch)   6303
9023847       seal 17x35x7         $10 78-86 Puch 2-speed                    L crank (mag)        L17
E2-48                  continued >>>         78-85 Batavus/Trac M56            sprocket shaft      6203
17x35x7TC   seal 17x35x7 2-lip  $12
4710             seal 17x35x8           $8 76-80 Minarelli V1                       L&R crank            6203
106001               continued >>>        76-84 Morini MO1,M1                  L&R crank           6203
106001               continued >>>        78-80 Morini MO2                       L crank (mag)      6203
036554               continued >>>        76-84 Tomos A3                           L&R crank             L17
036554               continued >>>        85-on Tomos A3,A35,A55             L&R crank          6203
17x35x8              continued >>>        76-78 Demm Smily                      L&R crank           6202
17x40x6      seal 17x40x6           $10
9013851      seal 17x40x7           $12 74-83 Puch 1-speed                    L crank (mag)      6203
9013851             continued >>>         74-86 Puch 1-speed                    sprocket shaft      6203
29868300           continued >>>         77-86 Garelli 2-speed                   L&R crank
9023852     seal 17x40x7 2-lip  $12 84-86 Puch 1-speed                      L&R crank
17x40x8.5    seal 17x40x8.5       $12


                      1 8 mm    H O L E
S.8771         seal 18x24x4           $12  74-86 Vespa variator models           rear pulley           needle


                      1 9 mm    H O L E
106020        seal 19x24x3.8         N/A  80-85 Morini M101                 variator drum


                      2 0  mm    H O L E
E2-42            seal 20x26x4          $20  78-85 Batavus/Trac M56              R driveshaft        bush
20x26x4              continued >>>        77-79 Puch “snowflake” rear mag wheel
37004           seal 20x30x4.5/5    $10  76-80 Peugeot 102/103               L crank (clutch)   6204
131511         seal 20x30x5           N/A  74-86 Vespa (all)                         rear brake drum
20x30x6        seal 20x30x6           $8  78-83 Indian 4-stroke                   pedal shaft
3129130       seal 20x30x7            $8  84-86 Derbi RD50                        sprocket shaft
20x30x7              continued >>>        76-85 Jawa                                     sprocket shaft
20x30x7              continued >>>        78-79 Tas Moprix/Speed Bird        L crank (clutch)
0001200341 seal 20x32x4          N/A 76-on Derbi (all)                            F&R wheels          6201
9003849       seal 20x35x7            $8  78-86 Puch 2-speed                    R crank (clutch)       E20
106012                continued >>>         78-80 Morini MO2                        R crank (clutch)     6203
20x35x8       seal 20x35x8           N/A  76-80 Benelli/Moto Guzzi            R crank (clutch)
816480        seal 20x42x7 offset  N/A 76-78 Batavus M48                     L crank (clutch)      6302
29860300    seal 20x42x7           $12 76-86 Garelli vertical 2-spd         R driveshaft           6004


                      2 1  mm    H O L E
E2-46            seal 21x32x7         N/A  78-85 Batavus/Trac M56              R crank (clutch)   6202


                      2 2  mm   H O L E
22x31x4        seal 22x31x4           N/A  60?-85? Solex (only sold with crank!)     L crank     6203
9023852        seal 22x40x7          $10  74-83 Puch 1-speed               R crank (clutch)  6203 w/clip
22x40x7TC    seal 22x40x7 2-lip  $12
22x42x7        seal 22x42x7           N/A  76-78 Angel/Speed Bird              L crank (clutch)     6302


                      2 4  mm    H O L E
0003102470  seal 24x32x7 NL    N/A  76-89 Derbi (all)                            fork                 none
F157-00-50    seal 24x33x10.5    N/A  78-83 Indian 4-stroke                      fork                none
158962          seal 24x35x6         N/A  70?-83? Vespa P200                    L crank (mag)


                     2 5  mm    H O L E
9023816        seal 25x35x7         $8  78-86 Puch 2-speed                     sprocket shaft       6203
0008330461  seal 25x40x7        N/A  76-86 Derbi “non & pyr reed”       sprocket shaft     6205


                      2 6  mm    H O L E
26x35x7        seal 26x35x7         $20  77-80 Colombia (Solo engine)       L crank (clutch)
26x36x10.5   seal 26x36x10.5    $10


                      2 8  mm     H O L E
28x38x7        seal 28x38x7          $8  76-85 Jawa                       L cover (inner clutch)
3211308291  seal 28x40x7          $8  78-81 Puch Magnum MkII                      fork
116205                continued >>>       78-85 Vespa Grande                             fork


                      3 5  mm     H O L E
036620         seal 35x47x7         $12  74-on Tomos A3,A35,A55               sprocket shaft    6006


 

                      S E A L    S E T S
26-0505         2 – 17x35x7, 2 – 16x24x5, 1 – 15x24x7         $25   74-80 Morini MO1
26-0508         17x35x8, 20x35x7, 2-16x24x5,15x24x7         $25   77-80 Morini MO2
7107136         2 – 17x35x8, 2 – 15x24x5, 1 – 15x24x5         $25   74-80 Minarelli V1
Puch1spd       1 – 22x40x7, 2 – 17x40x7                            $30  74-83 Puch 1-speed
Puch1-late      2 – 17x40x7 2-lip, 1 – 17x40x7                    $32  84-86 Puch 1-speed
Puch2spd       2 – 17x35x7, 1 – 25x35x7                           $30  78-86 Puch 2-speed
Sachs504       1 – 15x35x7, 2 – 15x30x5.5                      $18  74-80 Sachs 504
Sachs505       1-15x35x7, 1-15x32x5.5, 1-15x30x5.5   $18  76-80 Sachs 505