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Dynamic Lamps

Cassette Deck Drive Belt for Sony TC-WR790 – SBS 2.9
7.99 USD
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Match the complete equipment model Sony TC-WR790 and the replacement reference SBS 2.9. Similar model numbers can use different mechanisms.

Quantity guidance: The original A/B deck mechanisms each use a square FR belt. Replacing that position in both decks requires two belts, one per deck. This listing is sold per belt; confirm the replacement specification before ordering.

Additional belts used by this equipment: FBM8.3. Those belts are different sizes or profiles and are sold separately; SBS 2.9 alone is not a complete belt kit.

Specifications

SBS 2.9 specifications

Belt code SBS 2.9
Supplier reference 130-510
Inside circumference Approx. 2.9 in. (7.4 cm)
Profile Small square rubber drive belt
Cross-section Approx. 1.2 mm × 1.2 mm
Sony reference 3-359-466-01 where specified by the service record
Equipment compatibility

Model and replacement reference

Brand: Sony
Model: TC-WR790
Replacement belt: SBS 2.9

Service documentation, the equipment model plate, and the original belt path take precedence where they differ.

Manufacturer belt positions: Sony’s TC-WR690/TC-WR790 service manual distinguishes square FR belt 3-359-466-01 from flat capstan belt 3-359-417-01 in the A/B deck mechanisms (printed page 31). TurntableNeedles cross-references the FR part to SBS2.9. That supplier reference is application guidance; compare the supplied belt’s profile and dimensions with the original requirement.

Other belts in this machine

Additional belts used by this equipment: FBM8.3. Those belts are different sizes or profiles and are sold separately; SBS 2.9 alone is not a complete belt kit.

View the SBS 2.9 master compatibility page.

Installation guidance
  1. Disconnect power and follow the model service procedure.
  2. Remove residue and clean the belt path without leaving oil.
  3. Install without twists and cycle the mechanism by hand before applying power.