Product Description
Precision deep groove ball bearing with 20 mm bore, dual rubber shields for dust protection, OEM for Palletmaster manual pallet jacks, cross-referencing RA49910-02 and related part numbers.
Specifications
Material
| Bearing Material | High carbon chromium steel (SAE 52100 equivalent) |
| Shield Material | Nitrile rubber over steel core |
Part Numbers
| OEM Part Number | PM 49910-02 |
| Cross-Reference Part Numbers | RA49910-02, RA4991002, 4991002 |
| Equivalent Part Numbers | RA-49910-02a |
Frequently Asked Questions
Q: What are the specifications of the PM 49910-02 deep groove ball bearing?
A: The PM 49910-02 is a precision deep groove ball bearing with a 20 mm bore. It features dual nitrile rubber shields over a steel core for dust protection. The bearing is constructed from high carbon chromium steel (SAE 52100 equivalent) for load-bearing applications in manual pallet jacks.
Q: Which manual pallet jack models does the PM 49910-02 bearing fit?
A: This bearing is designed as an OEM replacement for Palletmaster manual pallet jacks. Verify the shaft diameter matches 20 mm and check your pallet jack documentation to confirm compatibility with your specific model.
Q: What are the cross-reference part numbers for PM 49910-02?
A: The equivalent part numbers are RA49910-02, RA4991002, 4991002, and RA-49910-02a. These cross-references identify the same bearing across different supplier and OEM catalogs.
Q: How long do the dual rubber shields protect the bearing?
A: The nitrile rubber shields provide effective dust and debris protection during normal warehouse operation. Shield durability depends on operating environment, humidity, temperature, and exposure to corrosive materials. Replace the bearing if shields crack or if contamination is visible.
Q: Why is SAE 52100 steel used in the PM 49910-02 bearing?
A: High carbon chromium steel (SAE 52100 equivalent) provides superior hardness, wear resistance, and load-bearing capacity required for manual pallet jack applications where wheels rotate under heavy static and dynamic loads.
Q: Can the PM 49910-02 bearing be used in electric pallet trucks?
A: This bearing is specified for manual pallet jack applications. Electric trucks may use different bearing specifications or sealing requirements. Verify compatibility with your electric equipment before ordering.