Product Description

The Simplicity Agitator Bearing NMB 626D (part B03) is an original equipment manufacturer (OEM) replacement bearing designed to support the brush roll agitation mechanism in Simplicity upright vacuum cleaners. This precision NMB ball bearing maintains proper shaft rotation and brush roll speed, critical for effective debris pickup and carpet cleaning performance.

The NMB 626D is a standard deep-groove ball bearing with sealed design to protect against dust and moisture intrusion. It fits directly into the agitator assembly of compatible Simplicity and Riccar uprights, providing a tight tolerance fit for optimal performance. As an OEM part manufactured by Tacony Corporation, it meets factory specifications for durability and longevity.

Compatible with Simplicity S10, S20, and S65 upright vacuum models. Parts cross-compatibility with Riccar uprights of the same generation is common due to shared Tacony manufacturing. Verify your model number before ordering to ensure proper fit.

Swiss Boy Vacuum is an authorized Simplicity and Riccar dealer in Bountiful, Utah, serving the Wasatch Front since 1963. We stock OEM parts and offer expert installation and repair service. Call 801-298-3656 with questions about compatibility or ordering.

Why Choose This Product?

• OEM Simplicity part B03 — exact factory replacement, not aftermarket
• NMB 626D sealed ball bearing — resists dust and moisture contamination
• Compatible with S10, S20, and S65 upright models
• Restores brush roll speed and agitation for proper carpet cleaning
• Direct fit into existing agitator assembly — no modifications required
• Manufactured by Tacony Corporation to original specifications

Specifications

• Brand: Simplicity by Tacony
• Part Number: B03
• Bearing Type: NMB 626D deep-groove ball bearing
• Design: Sealed ball bearing
• Compatible Models: S10, S20, S65 uprights

Compatibility

• Simplicity Models: S10, S20, S65
• Riccar Models: Compatible uprights of same generation (verify model before purchase)

Use Case

This bearing is essential for owners of Simplicity S10, S20, or S65 upright vacuums experiencing reduced brush roll speed, lack of agitation, or grinding noise in the brush roll area. If your brush roll is spinning slowly or not spinning at all, a worn agitator bearing is a common cause. Replacement restores full rotational speed and ensures the brush properly agitates carpet fibers for deep cleaning. Maintenance replacement is recommended every 5–7 years of regular use to prevent bearing failure and protect the agitator motor assembly.