Description
The Nordyne 921378 is a standard duty cast iron pillow block ball bearing engineered for dependable performance in HVAC and light industrial blower shaft applications. Featuring a 7/8″ bore diameter, this pillow block unit provides solid shaft support while the setscrew locking collar ensures a secure, no-slip fit on the shaft. The dual-seal design — combining a contact seal with a flinger seal — delivers superior protection against dust, debris, and moisture ingress, extending bearing service life in demanding environments.
Key Features
- 7/8″ bore diameter for precise shaft fitment
- Standard duty cast iron housing for durability and rigidity
- Pillow block design for easy mounting and alignment
- Setscrew locking mechanism for secure shaft retention
- Contact and flinger seal combination for enhanced contamination protection
- Pre-lubricated ball bearing insert for reduced maintenance
- Suitable for HVAC blower and fan shaft support applications
Specifications
- SKU: 921378
- Brand: Nordyne
- Bore Diameter: 7/8″
- Housing Material: Cast Iron
- Bearing Type: Ball Bearing
- Mounting Style: Pillow Block
- Locking Method: Setscrew
- Seal Type: Contact and Flinger
- Duty Rating: Standard Duty
Application
Designed as an OEM replacement or upgrade for Nordyne equipment, the 921378 pillow block ball bearing is ideal for supporting blower and fan shafts in furnaces, air handlers, and other HVAC systems. The cast iron housing resists deflection under load, while the combined contact and flinger seals keep contaminants out and lubrication in — ensuring long-term, low-maintenance operation.
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