Single Shielded Deep Groove Ball Bearing for Manual Pallet Jack
6204-Z
Guaranteed Fit. Check fit with us before you buy. If we confirm it fits your machine and it doesn’t, we’ll exchange or refund it: no restocking fee, return shipping on us. How it works
Not sure it fits? Send us your make, model and serial number and we’ll check it before you buy.
Couldn't load pickup availability
- Expert support & fitment help
- 30-day returns
- Fast Shipping
Compatibility
|
Make |
|
|---|---|
|
Model |
- |
Visit our diagram page for part references to popular models
Product Description
6204-Z single shielded deep groove ball bearing for manual pallet jack assemblies. Features a 20 mm bore, 47 mm outer diameter, and 14 mm width. Constructed from high carbon chromium steel, ISO Class 0 precision, and interchangeable with major industry part numbers.
Specifications
Dimensional
| Metric Designation | 6204-Z (DIN 625, ISO 15) |
| Outer Diameter | 47 mm |
| Width | 14 mm |
Material & Construction
| Inner/Outer Ring Material | High carbon chromium steel (SAE 52100/100Cr6) |
| Rolling Element Material | High carbon chromium steel |
| Shield Material | Steel (single-side shield, non-contact) |
| Precision Grade | ISO Class 0 |
Part Numbers
| Cross-Reference Part Numbers | Equivalent to: NSK 6204Z, NTN 6204Z, SKF 6204-Z, FAG 6204Z, KOYO 6204Z |
| Part Number | 6204-Z |
| Interchange Part Numbers | Replaces 204SS, BA00204, 6204Z, 6204ZZ (single shielded/interchangeable suffixes indicate shield/seal configuration) |
Frequently Asked Questions
Q: What are the exact dimensions of the 6204-Z bearing?
A: The 6204-Z has a 20 mm bore diameter, 47 mm outer diameter, and 14 mm width. These dimensions make it compatible with standard load wheel assemblies on manual pallet jacks from Crown, Toyota, Raymond, Yale, and other major manufacturers. Verify bore and shaft fit before ordering.
Q: Why is the 6204-Z made from high carbon chromium steel?
A: High carbon chromium steel provides corrosion resistance and high hardness required for repetitive loading in material handling equipment. ISO Class 0 precision means tight tolerances for smooth, quiet operation. This material composition ensures durability under the frequent stop-start cycles typical of pallet jack use.
Q: What does ISO Class 0 precision mean for the 6204-Z?
A: ISO Class 0 is the tightest tolerance grade for deep groove ball bearings, meaning dimensions are held within 0 to 5 micrometers depending on size. This ensures minimal radial and axial play, resulting in smoother operation and better load distribution. ISO Class 0 is standard for load wheel applications.
Q: Is the 6204-Z a direct replacement for the part numbers it replaces?
A: The 6204-Z directly replaces 204SS, BA00204, 6204Z, and single-shielded configurations. Do not substitute the -Z (single shield) with -ZZ (double shield) or -2RS (dual seals) unless your load wheel assembly is specifically designed for those seal types. Mismatched seals can cause binding or inadequate protection.
Q: Can the 6204-Z be used in wet or cold storage environments?
A: The 6204-Z has a single metal shield on one side, providing moderate dust protection. For consistent operation in wet, cold storage, or high-humidity environments, use the 6204-ZZ (double shield) or 6204-2RS (dual seals) instead. The single shield of the -Z is adequate for standard warehouse temperatures and dry conditions.