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SKU:
NLT1P01504
Ships for free in 2–4 business days.
4-Pack 1621-ZZ Shielded Ball Bearings 1/2 x 1-3/8 x 7/16 Inch
$22.99
In Stock
$22.99
Sale price
$22.99
Regular price
Four new 1621-ZZ shielded radial ball bearings measuring 1/2-inch ID, 1-3/8-inch OD, and 7/16-inch wide.
Estimated delivery between
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Any compatible assembly specified for a 1621-ZZ bearing
- Applications with a 1/2-inch shaft and 1-3/8-inch bearing bore
- Not tied to one vehicle or equipment model
Product Overview
These bearings are selected by dimensions and bearing designation rather than a vehicle model. They suit compatible shafts, rollers, pulleys, tools, and machinery that require a 1621-ZZ bearing.
A ZZ bearing uses metal shields on both sides to help keep larger debris out while retaining lubricant. Measure the shaft and bore and confirm the desired shield type and operating requirements before purchase.
Key Features & Performance
- Four 1621-ZZ radial ball bearings
- Metal shield on both sides
- Common inch-size dimensions for repair and fabrication
- Suitable for compatible rotating assemblies
Replaces Part Numbers
- 1621-ZZ
- 1621ZZ
Common Uses
- Replacing noisy bearings in rollers or pulleys
- Building a compatible shaft-supported mechanism
- Keeping spare bearings for maintenance work
Technical Specifications
- Bearing Type: Shielded radial ball bearing
- Quantity: 4
- Inside Diameter: 1/2 inch
- Outside Diameter: 1-3/8 inches
- Width: 7/16 inch
- Closure: Metal shields on both sides
Installation & Fitment
- Measure the shaft, housing bore, and original bearing width
- Press on the inner race for shaft installation and outer race for housing installation
- Keep shields clean and avoid impact through the balls
- Verify free rotation and correct retention
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application not shown.
Confirm designation 1621-ZZ, 1/2-inch ID, 1-3/8-inch OD, 7/16-inch width, clearance, and load requirements.
Frequently Asked Questions
Q: Is 1621-ZZ the same as a rubber-sealed bearing? A: No. ZZ normally indicates metal shields; a 2RS bearing uses contact-style rubber seals and can behave differently.
Q: How do I confirm this is the correct shielded radial ball-bearing pack? A: Confirm designation 1621-ZZ, 1/2-inch ID, 1-3/8-inch OD, 7/16-inch width, clearance, and load requirements.
Q: Is this supplied by the original equipment manufacturer? A: No. This is a new aftermarket product. Brand and model names identify compatible applications only.
Part Summary
keywords: 1621-ZZ bearing 4 pack, half inch shielded ball bearing, 1-3/8 OD radial bearing, 1621ZZ machinery bearing, roller pulley bearing replacement
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.