The 11 Best 30304 Bearings (2023 reviews)

Compared with other bearing in this category, the tim 30304 bearing has a convenient design. This type of bearing supports radial load and a small degree of axial load in both directions simultaneously. It is sealed with two rubber seals, one on each side. It fits in the pulley and the pulley spins. The part number and Timken Trademark is stamped on the inner ring of the bearing. It provides a better seal but more rolling friction than 2z.

This Bearing is ideally suited for this application with Contact Seals. It has a 5/8 ” shaft size. It is suitable for high speed low friction applications. The pump operates 2 to 3 hours, two times a week.

Why We Like This:

Easy install with a press and 30mm socket
Good brand reputation

Xike 30304 Bearing

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These are indeed bearings that are metal sealed so you get the real deal bearings. They give you the dimensions of the bearing. These are perfect replacements and upgraded the cart to a smooth ride.

These bearings fit the hubs and axels very well. These are okay with grease and all roll smoothly. The bearings they replaced are an unsealed, economy type with no grease fittings. These will not fit your axle easily without taking a few.001" off your axle diameter.

Why We Like This:

Perfect fit in polar lg7 trailer
Great plan to prevent ever getting flat tires again
Cured wobbly wheels, more directional stabiilty

Marathon industries 30304 Bearing

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Marathon Industries line of bearing come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. These are not rolled metal bearings like light duty. They work on dollies, lawn carts, and riding lawn mowers. The inner and outer races are machined from solid steel, not sure of the temper / hardness. They have removable shields. The wheels roll noticeably easier with these fitted, and turning is much better. These are sealed bearings so there's no need to grease anymore unless you just like to make a mess.

These appear to be very well made, and are a perfect replacement for the crappo bearings that come in many wheels for rolling stands and carts.

Why We Like This:

Has a ridge to prevent driving too far into wheel
Exact size (inner and outer dimensions) and a perfect fit
Good (medium duty) wheel bearing for riding lawn mower / garden tractor

Uxcell 30304 Bearing

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The uxcell 30304 bearing is suitable and reliable and fits well with your daily usage. Uxcell's Deep Groove Ball Bearings are cost-effective and require little maintenance. They are used to accommodate radial and axial loads in both directions. These are used to accommodate radial and axial loads in both directions.

These are made from carbon steel, and need to be used in low rotation speed. It is perfect replacement for portercable bearing.

Why We Like This:

Lower limit speed than shield bearings
Lot of satisfied buyers

Donepart 30304 Bearing

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The donepart 30304 bearing is the best convenient bearing on the market today. It provides you with one-stop solution for your vehicle and industrial work. It comes with small friction and high-limit speed, deep groove ball bearings are cost-effective and require little maintenance. It is suitable for all kinds of industrial equipment, micro motor, small rotary motor, office equipment and so on. The Miniature Deep Groove Ball Bearing is suitable for all kinds of industrial equipment, micro motor, small rotary motor, office equipment and so on.

Why We Like This:

Chrome steel for higher resistance and durability
Range from industrial bearing, valve cover gasket, led trailer light etc
Lot of satisfied buyers

PGN Bearings 30304 Bearing

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Ultra-durable, high-quality bearings are designed to survive the roughest conditions, lowering maintenance costs and replacement frequency. These bearings are better than no bearings. It is made from chrome steel and can survive severe impacts. The Double metal seal on both sides protects the ball bearing, safeguarding its integrity, ensuring it holds together whatever structured it is holding together.

These bearings are designed to survive high pressure. It can also be fitted in several machines, and metal fatigue is not a problem for these bearings. The extreme RPM support minimizes wear and tear, protecting the bearings from early failure and collapse.

Why We Like This:

Good brand reputation
Good investment for long term

QJZ 30304 Bearing

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The qjz 30304 bearing should be able to handle its purpose and duties with ease.

Why We Like This:

Good investment for long term
Good brand reputation

Fgen 30304 Bearing

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Rolling bearings use rolling elements to maintain separation between moving parts to reduce rotational friction and support radial and axial loads. These are the right size, and work perfectly. It is made of high quality bearing steel for longer life, higher precision and less noise. It has a c3 radial internal clearance for radial relaxation between the inner and outer rings greater than cn (normal) to compensate for thermal expansion. Rubber seals on both sides of the bearing prevent lubricant from entering and contaminating radial and axial loads.

Why We Like This:

Prevent lubricant from entering and contaminating
Good brand reputation

Luanayun-Phone case 30304 Bearing

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Not everyone likes to purchase bearing for their regular usage, but the luanayun-phone case 30304 bearing would be an anomoly. The raceway surfaces of inner ring and outer ring and the rolling contact surface of rollers are designed so that the respective apexes converge at a point on the bearing center line. This bearing contains tapered rollers for its rolling element which are guided by the inner ring backface rib on the roller large end face.

Why We Like This:

Lot of satisfied buyers
New and hot release

Wuxun-Phone case 30304 Bearing

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Wuxun-Phone Case line of bearing come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The raceway surfaces of inner ring and outer ring and the rolling contact surface of rollers are designed so that the respective apexes converge at a point on the bearing center line. This bearing contains tapered rollers for its rolling element which are guided by the inner ring backface rib on the roller large end face.

Why We Like This:

Lot of satisfied buyers
One of the new comers and featured product

generic 30304 Bearing

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The generic 30304 bearing is capable of outshining several other bearing featured in this list in overall features in its price range.

Why We Like This:

Good investment for long term
Good brand reputation