NTN 32224U tapered roller bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Decoding NTN 32224U
- 322Series
- Tapered roller bearings, 322 series. Series differ in outside diameter and width even when the bore is the same.
- 24Bore
- Bore 120 mm (24 × 5).
- USuffix
- NTN suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
32224 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
NTN 32224U measures 120 mm across the bore and 215 mm across the outside diameter; its total width is 61.5 mm (120 x 215 x 61.5 mm).
NTN 32224U belongs to tapered roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 32224U and any equivalents.
NTN U series tapered roller bearings handle radial and axial forces in one direction. The tapered geometry creates linear contact between rollers and raceways, which helps distribute combined loads. You will find them in gearboxes, wheel axles, agricultural machinery and other industrial equipment that demands rigidity and load capacity. MR Industrial Accessories supplies this series and helps you match the right size to your application.
The part number tells you the bore. For instance, 30218U has a 90 mm bore, and 30220U has a 100 mm bore. The U suffix is an NTN design variant that can involve changes to the roller profile or surface treatment. When selecting a bearing, start with the shaft diameter and the load conditions. If you need help reading the nomenclature, our team can assist.
These bearings appear in gearboxes, power transmissions, road machinery, mining equipment and agricultural implements. They also show up in milling machine spindles, conveyor rollers and lifting systems. Because they accommodate combined loads, they suit demanding environments where precision and durability matter. We supply workshops, plants and machinery builders across the United States and several Latin American countries.
Proper mounting calls for attention to sealing and lubrication. Tapered roller bearings are often installed in facing pairs to manage axial loads in both directions. Shaft and housing alignment must be precise to avoid extra stress and to support service life. Internal clearance should match the application: a tighter clearance increases rigidity but needs sufficient lubrication. Follow the manufacturer's instructions and use mounting tools that will not damage the raceways.
For equivalences, NTN U series bearings can be interchanged with other brands that use the same dimensional designation, such as SKF, FAG or Timken, provided tolerances and contact angle are respected. Always check the suffix and technical details before substituting a part. If you are unsure, our team can point you to a compatible alternative for your equipment.
To request a quote for an NTN U series tapered roller bearing, send the part number or size via WhatsApp or email. We will reply promptly and suggest a compatible alternative if needed. MR Industrial Accessories is your source for industrial spare parts.
Dimensions
120 x 215 x 61.5 mm (d x D x T): boundary dimensions for basic designation 32224, according to ISO 355.
- Bore
- 120 mm
- Outside diameter (D)
- 215mm
- Total width (T)
- 61.5mm
SKF and other brands, same size
Other brands' pages with basic designation 32224: 120 x 215 x 61.5 mm (d x D x T) per ISO 355.
What they share are the ISO 355 boundary dimensions, not the specs: seals or shields, internal clearance, cage and load rating may vary with brand and suffix. Every quote is by full part number.
Frequently asked questions
- NTN 32224U bearing: what are its dimensions?
- NTN 32224U measures 120 mm across the bore and 215 mm across the outside diameter; its total width is 61.5 mm (120 x 215 x 61.5 mm). Those are the boundary dimensions standardized in ISO 355 for basic designation 32224.
- What does the U suffix mean in NTN bearings?
- The U suffix denotes a design variant within the NTN tapered roller series. It may include improvements to the roller profile or surface treatment, but it does not alter the main dimensions. For exact details, contact us with the complete part number.
- How do I choose the right tapered roller bearing?
- Consider the shaft diameter, radial and axial loads, and speed and temperature conditions. The mounting type and lubrication are also important. Send us this information and we will help you select the correct part number.
- Are NTN U series bearings interchangeable with other brands?
- They can be interchanged with bearings from other brands that follow the same dimensional designation and contact angle, such as SKF, FAG or Timken. Always verify tolerances and the suffix. If you have doubts, send us the part number and we will advise you.