中轴

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Chris King SRAM/Truvativ Road bottom bracket BSA 68mm
-22%

Chris King SRAM/Truvativ Road bottom bracket BSA 68mm

Features: Version für Shimano/X-Type oder SRAM/Truvativ erhältlich Gewinde: BSA Gehäuse: 68 und 73mm Einbau nur mit geeignetem Werkzeug 5 Jahre Garantie...

was 186.45 €
from 145.20

中轴

Details
Chris King Shimano/X- type MTB bottom bracket BSA 68/73mm
-20%

Chris King Shimano/X- type MTB bottom bracket BSA 68/73mm

Seit über 32 Jahren gibt es bei Chris King die Besten gedichteten Lager. Jetzt gibt es sie auch für Innenlager. Jawohl, das Chris King Innenlager ist hier...

was 176.37 €
from 140.17
Details
Chris King SRAM/Truvativ MTB bottom bracket BSA 68/73mm
-22%

Chris King SRAM/Truvativ MTB bottom bracket BSA 68/73mm

Seit über 32 Jahren gibt es bei Chris King die Besten gedichteten Lager. Jetzt gibt es sie auch für Innenlager. Jawohl, das Chris King Innenlager ist hier...

was 186.45 €
from 145.20
Details
Dartmoor Euro BB bottom bracket black

Dartmoor Euro BB bottom bracket black

Euro standard bottom bracket bearings with alu cups. Two sealed bearings in each cup. Two inner sleeves for 68mm and 73mm bottom bracket shells and a set of...

was 38.22 €
from 33.18
Details
Dartmoor Euro eX BB bottom bracket 19mm black

Dartmoor Euro eX BB bottom bracket 19mm black

was 46.99 €
42.25
Details
Dartmoor Euro eX BB bottom bracket 22mm black

Dartmoor Euro eX BB bottom bracket 22mm black

was 46.99 €
42.25
Details
Dartmoor Mid BB bottom bracket black

Dartmoor Mid BB bottom bracket black

Mid standard bottom bracket bearings. Two inner sleeves for 68mm and 73mm bottom bracket shells and a set of spacers included. For 2011 inner sleeves have...

 
from 23.09
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Dartmoor Spanish BB bottom bracket black

Dartmoor Spanish BB bottom bracket black

Spanish standard bottom bracket bearings. Two inner sleeves for 68mm and 73mm bottom bracket shells and a set of alu spacers included. For 2011 inner sleeves...

 
from 23.09
Details
DMR Cult bottom bracket complete

DMR Cult bottom bracket complete

BSA- Innenlager für 19mm Achse

 
50.32
Details
DMR Cult MID bottom bracket complete

DMR Cult MID bottom bracket complete

MID- Innelager für 19mm Achse

 
40.24
Details
e.thirteen BB-30 bottom bracket (for TRC and SSK) black (OLD)

e.thirteen BB-30 bottom bracket (for TRC and SSK) black (OLD)

was 70.49 €
63.43
Details
e.thirteen BB30 TiNi bottom bracket (for XCX/TRS/LG1) (NEW)
-22%

e.thirteen BB30 TiNi bottom bracket (for XCX/TRS/LG1) (NEW)

was 90.66 €
70.49
Details
e.thirteen BB89.5/92 TiNi bottom bracket (XCX/TRS) (NEW)
-21%

e.thirteen BB89.5/92 TiNi bottom bracket (XCX/TRS) (NEW)

was 70.49 €
55.36
Details
Logo

e.thirteen BB89.5/BB92 bottom bracket (LG1) (NEW)

was 50.32 €
45.28
Details
Logo

e.thirteen BB89.5/BB92 TiNi bottom bracket (LG1)

was 70.49 €
63.43
Details
e.thirteen BSA bottom bracket 68/73 (for LG1 and cranks without APS) black
-25%

e.thirteen BSA bottom bracket 68/73 (for LG1 and cranks without APS) black

was 75.53 €
56.42
Details
Logo

e.thirteen PF30 bottom bracket (bb20.p-pf30.k) (NEW)

 
89.75
Details
FRM bottom bracket Press Fit for 25mm axle

FRM bottom bracket Press Fit for 25mm axle

Dieses FRM Innenlager ist zu Rahmen mit PressFit Innenlageraufnahme mit 89,5mm oder 92mm Breite kompatibel. Das Innenlager nimmt die 25mm Wellen der...

was 71.60 €
62.51
Details
FSA BB30 bearing bottom bracket
-26%

FSA BB30 bearing bottom bracket

was 29.24 €
from 21.60
Details
FSA BB92 bearing bottom bracket
-27%

FSA BB92 bearing bottom bracket

was 30.25 €
from 22.08
Details
Logo

FSA distance disc for X-Drive BB axle

 
from 1.82
Details
FSA MegaExo bottom bracket MTB BSA
-32%

FSA MegaExo bottom bracket MTB BSA

Beschreibung & Material: oversized verkeilt und integrierte ChroMoly Innenlagerwelle MegaExo Aluminium Lagerschalengrößen Ø24 mm Innenlagerwelle...

was 37.31 €
from 25.16
Details
FSA MegaExo Cartridge bottom bracket MTB BSA
-34%

FSA MegaExo Cartridge bottom bracket MTB BSA

MegaExo Cartr. Quad BB-7550 MTB BSA für Kurbeln Gravity MegaExo Quad und GAP MegaExo Quad; zweireihiges Cartridgelager; MegaExo Alu Lagerschalengrößen; Ø 24...

was 50.42 €
from 33.18
Details
FSA MegaExo Ceramic Cartridge bottom bracket BB-9200 MTB BSA 68mm red anodised
-25%

FSA MegaExo Ceramic Cartridge bottom bracket BB-9200 MTB BSA 68mm red anodised

MegaExo Cartr. Ceramic BB-8200  für Kurbel K-Force Light MegaExo Road Gewicht: 92 g Farbe: orange eloxiert Groesse: Ø 24 mm

was 291.43 €
217.82
Details
FSA Platinum bottom bracket
-43%

FSA Platinum bottom bracket

FSA Platinum Pro Innenlager Geschmiedete und hohlgebohrte Stahl-Achse Doppelt-gedichtete Industrielagerung kaltgeschmiedete Aluminium Lagerschalen Externe...

was 85.71 €
from 48.30
Details
FSA Platinum ISIS bottom bracket
-50%

FSA Platinum ISIS bottom bracket

Platinum FSA Innenlager Geschmiedete und hohlgebohrte Stahl-Achse; doppelreihiges Industrielager MegaQuad; kaltgeschmiedete Schalen aus Aluminium; Titan...

was 61.51 €
from 30.20
Details
FSA Platinum Pro DH bottom bracket red ISIS 73-122.5mm
-16%

FSA Platinum Pro DH bottom bracket red ISIS 73-122.5mm

Platinum Pro DH für ISIS Drive Gewicht: 320 g Farbe: rot Groesse: 73 x 122.5 mm

was 102.86 €
85.61
Details
FSA Platinum Pro Ti bottom bracket mm toothed axle titanium ISIS
-66%

FSA Platinum Pro Ti bottom bracket mm toothed axle titanium ISIS

FSA Platinum Pro Titanium Innenlager CNC gefräste, hohle Titan Achse Doppelt-gedichtete Industrielagerung kaltgeschmiedete Aluminium Lagerschalen Externe...

was 181.51 €
from 60.40
Details
FSA X-Drive bottom bracket BMX- bearing for MTB
-23%

FSA X-Drive bottom bracket BMX- bearing for MTB

Innenlager für DH-Kurbelgarnitur X-Drive Bash ChroMoly Innenlager für DH, Freeride & Dirt Jump kaltgeschmiedete Lagerschalen Spindellänge 155mm inkl....

was 69.78 €
53.34
Details
Hope bottom bracket cups BSA, with cartridge bearings from ceramic
-27%

Hope bottom bracket cups BSA, with cartridge bearings from ceramic

Beschreibung Unser Innenlager kann mit Industrielager aus Edelstahl oder Keramik geliefert werden. Das Innenlager ist mit den meisten Kurbeln kompatibel,...

was 141.62 €
from 102.76
Details
Hope bottom bracket cups BSA, with cartridge bearings from stainless steel
-20%

Hope bottom bracket cups BSA, with cartridge bearings from stainless steel

Beschreibung Unser Innenlager kann mit Industrielager aus Edelstahl oder Keramik geliefert werden. Das Innenlager ist mit den meisten Kurbeln kompatibel,...

was 96.54 €
from 76.44
Details
Hope bottom bracket modification kit for Truvativ GXP cranks
-18%

Hope bottom bracket modification kit for Truvativ GXP cranks

was 12.20 €
9.98

中轴

In the 中轴 shop you find 123 different 中轴 in total for bargain prices with worldwide shipping
  • Chris King
  • Dartmoor
  • DMR
  • e.thirteen
  • FRM
  • FSA
  • Hope
  • MVTE
  • Octane One
  • Race Face
  • Reset
  • ROTOR
  • Santa Cruz
  • Shimano
  • Sixpack
  • SKF
  • Specialized
  • Surly
  • THM-Carbones
  • Truvativ
  • Tune

About 中轴

The inner bearing is one of the central elements of every bicyle. This bearing assimilates the cranks and looks back at a long development. The result is a multiplicity of different „standards“ which create a lot of confusion today.

Before you buy an inner bearing you have to pay attention to this two points:

  1. the bearing has to fit in the frame
  2. the bearing has to fit to the crank

Connection with the frame
Depending on the frame there are seceral types of inner bearings. Thereby you can roughly seperate between the ones that must be screwed in and the ones that must be pressed in.

English winding (BSA)
This bearings were recently the „standard“ of mountain bikes and many racing bikes. The winding size is 1,37“ x 24 tpi (threads per inch) in which the right bearing has a left winding and the left bearing has a right winding. The body housing width of the frame is 68mm or 73mm

Italian winding (ITA)
Originally the „standard“ of racing bikes in Italy, therefrom the name. The bearings always have a right winding with the size 36mm x 24.
The body housing width of the frame is 70mm

BB30 / Pressfit 30
A „standard“ created by Cannondale for bearings that must be pressed in the frame. he body housing width of the frame is 68mm or 73mm, the outer diameter of the bearings is 42mm. Pressfit 30 has the same sizes. This ist the name the company SRAM or rather the subsidiary Truvativ gave for this „standard“.

Shimano Pressfit
Shimano has several variants but they all have in common that they have a construction for a 24mm crankshaftand the outer diameter of the bearing is 41mm.
Different are the varying body housing widths of the frames of 86,5mm or 92mm

Connectio to the crank
Even the axles that conncet both of the crank arms have differences. In the past patron bearings with BSA or ITA winning that were firmly connected with the axle were often used. The cranks were screwed on both sides.

Square axle
The oldest form of axles with a conical square on every ending on which the crank arms are pressed using crank guides. Disadvantage is the the wear of the intake and the cumbersome dismantling via extractor.

Fixed gear axle
The further development of the square axle is the fixed gear axle. The Shimano „standard“ Oktalink and the free „standard“ ISIS are still established. But they are not compatible among each other. An exception is the slim Oktalink gearing at Shimano Dura-Ace cranks.
On fixed gear axles both crank arms are also pressed up via screws and can only be removed with an extractor.

Axles on two-part cranks
Currently crank systems have established themselves in which the axles are not connected with the inner bearing but with the right crank arm. The bearings are screwed or pressed in the frame. The axles are just put through and screwed with the left crank arm. Be careful that the inner bearing diameter and the diameter of the crank axle accord to each other. The assembly width of the bearing and the crank have to match, too. The advatages of this system are a larger span, an extended bearing age and an easier montage and removal.

Assembly hints
The frame should always be prepared for the assembly of an inner bearing. Thereto mainly belongs the recut of the winding and the face milling of the body housing. Only then the sides are parallel to each other and the bearings work without deforming. Otherwise it would lead to early bearing wear.

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28.01.2015, 13:02 h
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