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Sprocket wheel bearing, included sprocket wheel (4-055), sprocket wheel spindle, sprocket wheel locking plate (4-058), 2x roller bearing (4-051)

BMW Isetta rear axle

Sprocket wheel bearing, included sprocket wheel (4-055), sprocket wheel spindle, sprocket wheel locking plate (4-058), 2x roller bearing (4-051) Zoom

Sprocket wheel bearing, included sprocket wheel (4-055), sprocket wheel spindle, sprocket wheel locking plate (4-058), 2x roller bearing (4-051)

€298.70

incl. 19% VAT plus shipping

The sprocket bearing 4-0508, complete with sprocket shaft, chain tensioner plate, and two ball bearings, is a key assembly for the chain drive of the BMW Isetta rear axle. During restoration, this set enables the professional replacement of worn bearing assemblies and the precise adjustment of chain tension, significantly reducing running noise and chain wear. The matched components facilitate installation and ensure the correct alignment of the drivetrain.
Technical data
Category
BMW Isetta rear axle
BMW part number
33123038526
Item number
4-0508
Condition
Not specified – on request
Weight
1 kg
Availability on request

No instant purchase: after your request you will receive a personal quote including shipping costs.

Philipp Schäper
Philipp Schäper BMW Isetta specialist Question about this item?
In stock Almost all parts available directly from stock
Original parts Original parts from workshop inventory
Specialists The specialists for BMW Isetta, 600 & 700
Worldwide shipping By DHL, UPS or freight forwarder — safely packed
Application

A sprocket bearing with shaft, clamping plate, and ball bearings is used to precisely mount the sprocket and adjust the correct chain tension in the rear axle drive.

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General information about this item

Product info
The sprocket bearing 4-0508, complete with sprocket shaft, chain tensioner plate, and two ball bearings, is a key assembly for the chain drive of the BMW Isetta rear axle. During restoration, this set enables the professional replacement of worn bearing assemblies and the precise adjustment of chain tension, significantly reducing running noise and chain wear. The matched components facilitate installation and ensure the correct alignment of the drivetrain.

Database ID: 1487 Accessed on: 17.06.2026 17:59 Data state: 22.05.2026 12:33 In stock since: 18.11.2025