NTN 33114U3DE tapered roller bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Tapered roller bearings
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Decoding NTN 33114U3DE
- 331Series
- Tapered roller bearings, 331 series. Series differ in outside diameter and width even when the bore is the same.
- 14Bore
- Bore 70 mm (14 × 5).
- U3DESuffix
- NTN suffix: identifies the variant, such as seals or shields, cage, internal clearance or other features.
33114 is the standard ISO basic designation, which sets the bearing type, series and bore.
Description
NTN 33114U3DE measures 70 mm across the bore and 120 mm across the outside diameter; its total width is 37 mm (70 x 120 x 37 mm).
NTN 33114U3DE 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 33114U3DE and any equivalents.
Tapered roller bearings from NTN are built to carry radial and axial forces at the same time. The angled races and rollers make line contact, which spreads the load across the rolling surfaces. You will find them in gear reducers, transmission boxes, wheel axles and other machinery that needs stiffness and accurate running.
Reading the code helps you narrow down a replacement. Take 33116U3DE, 33117U3DE and 33118U3DE: the leading digits point to the dimension series, the U marks a unit cup and cone arrangement, the digit after it can signal a cage or angle variant, and DE is typically a precision or special treatment suffix. The same pattern repeats as the size steps up through the family. If any part of the code is unclear, our team can walk you through it.
These bearings turn up in automotive, metallurgical, cement and food processing work, as well as in earthmoving equipment, conveyors, mills and machine tools. A rotating shaft that sees radial and axial force at once is the classic case for this design, which keeps operation steady under heavy duty.
Selection comes down to the radial and axial load, the rotation speed and the surrounding conditions. Decide on sealing early: open bearings need external lubrication and shielding from contaminants, while sealed versions hold grease better. Alignment at mounting has to be precise to avoid early wear. Grease or oil applied correctly stretches service life, so follow the maker's guidance on internal clearance and tightening.
Cross-brand replacement is often possible, but check dimensions and load ratings first. Tapered roller bearings tend to interchange when series and suffixes line up, though tolerances or materials can differ and affect how the bearing performs. Give us the code from another brand and we will help you find the matching NTN reference. Confirm with our technical team before you swap anything.
For a quote on these NTN tapered roller bearings, send the code or size you need by WhatsApp or email. MR Industrial Accessories LLC supplies customers throughout the United States and in several Latin American countries, and we are glad to suggest equivalents or help you pick the right option.
Dimensions
70 x 120 x 37 mm (d x D x T): boundary dimensions for basic designation 33114, according to ISO 355.
- Bore
- 70 mm
- Outside diameter (D)
- 120mm
- Total width (T)
- 37mm
SKF and other brands, same size
Other brands' pages with basic designation 33114: 70 x 120 x 37 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 33114U3DE bearing: what are its dimensions?
- NTN 33114U3DE measures 70 mm across the bore and 120 mm across the outside diameter; its total width is 37 mm (70 x 120 x 37 mm). Those are the boundary dimensions standardized in ISO 355 for basic designation 33114.
- What does the designation 33114U3DE mean?
- The numbers give the dimension series, while the letters cover traits such as the unit design (U) and precision or treatment suffixes (DE). Each part of the code points to specific attributes. Send us your code via WhatsApp and we will interpret it for you.
- How do I choose between a sealed and an open bearing?
- Sealing keeps contaminants out and lubrication in, which suits dirty or damp environments. Open bearings run at higher speed and are easier to lubricate externally. Your application decides the answer, and our technical team can guide you.
- Can I replace a bearing from another brand with an NTN one?
- Yes, when dimensions and load capacity line up. Tapered roller bearings often interchange across brands, but tolerances and materials still matter. Send us the original code and we will point you to the equivalent NTN reference and quote it.