Does my Wheel Need Grease?

Before using a grease zerk, check which type of bearings your wheel has.

Not every wheel bearing requires additional grease. Some Carefree wheel hubs are available with different bearing configurations, so the hub may include a grease zerk even when the selected bearings are already sealed and pre-greased.

Understanding your wheel's bearing type can help prevent unnecessary maintenance and accidental damage to the grease fitting.

Semi-Precision Ball Bearings

Carefree semi-precision ball bearings are double-sealed and pre-greased. Because the grease is already sealed inside the bearing, these bearings do not need additional grease added through the wheel's grease zerk.

If your wheel has semi-precision ball bearings, the presence of a grease zerk does not mean that you need to use it.

Roller Bearings and Bushings

Some heavy-duty wheel configurations use roller bearings with metal bushings instead of semi-precision ball bearings.

These configurations may be designed to receive grease through the hub's grease zerk. Before adding grease, check the product specifications or confirm the bearing configuration installed in your wheel.

Do not assume that every wheel with a grease zerk requires the same maintenance.

Why Does My Wheel Have a Grease Zerk?

Certain wheel hubs are used with several different bearing options. Because of this, a hub may include a grease zerk even when it is assembled with sealed, pre-greased semi-precision ball bearings.

The bearing type installed in the wheel determines whether additional grease is needed, not simply the presence of the grease fitting.

What If the Grease Zerk Is Loose or Spinning?

Do not continue turning, removing, or adjusting a grease zerk that feels loose or begins spinning in the hub. Continuing to manipulate the fitting may damage the zerk or its connection to the wheel.

Stop and contact Carefree Wheel & Tire so our team can help identify the wheel, bearing type, and appropriate next step.

Check Before You Grease

Before performing maintenance, confirm:

The type of bearing installed in the wheel
Whether the bearing is sealed and pre-greased
Whether the wheel's specifications call for additional lubrication
That the grease zerk is secure and undamaged

If you are unsure which bearings your wheel uses, contact Carefree Wheel & Tire before adding grease.

Have Questions About Your Wheel?

Contact Carefree Wheel & Tire for help identifying your bearing configuration before performing maintenance.

Contact Carefree Wheel & Tire

9th Nov 2026