32905 and 32009 Tapered Roller Bearings: Thin vs Standard
The 32905 tapered roller bearing features a 25 mm bore, 47 mm outside diameter, and 15 mm width, while the 32009 tapered roller bearing features a 45 mm bore, 75 mm outside diameter, and 20 mm width. Both single-row bearings belong to metric ISO tapered families designed to support combined radial and axial thrust loads in rotating equipment. However, they differ in bore sizing, physical envelope, and cross-sectional series profile.
A common misconception among workshop technicians and purchasing teams across Indonesia - from Glodok in West Jakarta to industrial estates in Cikarang and Surabaya - is that bearings with similar series numbering can be interchanged or that bore size alone determines the complete part number. In reality, substituting a thin section tapered roller bearing for a standard section bearing leads to structural misfits and premature machine failure.
HI-TEC supplies genuine 32905 and 32009 tapered roller bearings engineered for quiet operation and long service life. This guide outlines their exact dimensions, series profiles, and selection criteria to help plant engineers choose the correct component.
What are the exact dimensions of 32905 and 32009 tapered roller bearings?
The HI-TEC 32905 is a thin section tapered roller bearing with a 25 mm bore, 47 mm outside diameter, and 15 mm width, whereas the HI-TEC 32009 is a standard section bearing with a 45 mm bore, 75 mm outside diameter, and 20 mm width. Both single-row tapered roller bearings are supplied under the reliable HI-TEC brand for diverse industrial and automotive machinery across Indonesia.
| Metric Parameter | HI-TEC 32905 Bearing | HI-TEC 32009 Bearing |
|---|---|---|
| Bore Diameter (d) | 25 mm | 45 mm |
| Outside Diameter (D) | 47 mm | 75 mm |
| Overall Width (T) | 15 mm | 20 mm |
| Series Designation | 32900 Series (Thin Section) | 32000 Series (Standard Section) |
| Brand Availability | HI-TEC | HI-TEC |
The 32905 tapered roller bearing is optimized for 25 mm shafts operating in tight machinery envelopes where housing space is restricted. By contrast, the 32009 tapered roller bearing mounts onto 45 mm shafts, utilizing a 75 mm outer ring to handle heavy radial forces and axial thrust in industrial gearboxes, pumps, and automotive assemblies.
Ordering the wrong part number disrupts operations and increases total machine downtime. For maintenance teams replacing compact assemblies, verify specifications directly on the HI-TEC 32905 product page. HI-TEC supplies genuine 32905 and 32009 tapered roller bearings with fast nationwide shipping across Indonesia. Contact our technical team directly via WhatsApp at +62 823-1004-6527 for immediate price and stock confirmation.
Parts in this article
| Part (bore x OD x width) | Variants | Price |
|---|---|---|
| 32905 25 x 47 x 15 mm 32900 Series | 32905 | Ask today's price on WhatsApp |
| 32009 45 x 75 x 20 mm 32000 Series | 32009 | Ask today's price on WhatsApp |
| 32910 50 x 72 x 15 mm 32900 Series | 32910 | Ask today's price on WhatsApp |
| 32010 50 x 90 x 20 mm 32000 Series | 32010 | Ask today's price on WhatsApp |
What is the difference between 32900 and 32000 series tapered roller bearings?
The primary difference between the 32900 and 32000 series is their section height, as the 32900 series uses a compact, thin section profile while the 32000 series features a wider cross-section with higher load capacity at a given bore[1][2][3]. Single-row tapered roller bearings cannot be interchanged by series number alone[1].
| Selection Factor | 32900 Series (Thin Section) | 32000 Series (Standard Section) |
|---|---|---|
| Envelope Dimension | Compact radial cross-section and reduced width[3] | Standard radial height and wider outer ring[2] |
| Load Capacity | Moderate dynamic and static load support[3] | High dynamic and static load ratings[2] |
| Application Profile | Space-restricted gearboxes and light machinery[3] | Heavy industrial drives, machine tools, drive shafts[2] |
| Fitting Requirement | Requires precise housing and shaft shoulder check[1] | Standard ISO housing and shaft shoulder fit[1] |
The 32900 series bearing dimensions prioritize a low-profile envelope, allowing equipment designers to reduce housing size and component weight without sacrificing shaft diameter[3]. In contrast, the 32000 series tapered roller bearing incorporates larger rolling elements and thicker rings, delivering greater fatigue resistance under heavy combined loading[2]. For example, at a 50 mm shaft bore, a 32910 bearing measures 50 x 72 x 15 mm, whereas a 32010 bearing measures 50 x 80 x 20 mm[2][3].
Attempting to install a 32000 series bearing into a space engineered for a 32900 series profile results in physical housing interference. Maintenance engineers in facilities across Bandung, Semarang, and Balikpapan should review total envelope dimensions on the HI-TEC 32009 product page prior to ordering replacement spares.
Need a price? Ask HI-TEC Asia on WhatsApp Send the part number (32905, 32009, 32910, or any other) to ask for today's price and availability. Open WhatsApp |
Frequently Asked Questions
What are the exact dimensions of a 32905 tapered roller bearing?
The HI-TEC 32905 tapered roller bearing measures 25 mm inner bore diameter, 47 mm outside diameter, and 15 mm overall width. It belongs to the thin-section 32900 series family.
What are the exact dimensions of a 32009 tapered roller bearing?
The HI-TEC 32009 tapered roller bearing measures 45 mm inner bore diameter, 75 mm outside diameter, and 20 mm overall width. It belongs to the standard 32000 series family.
What is the difference between 32900 and 32000 series tapered roller bearings?
The 32900 series features a low-profile thin section designed for compact machine envelopes, whereas the 32000 series uses a wider cross-section with larger rollers to provide higher radial and axial load capacity[2][3].
Are 32905 and 32009 tapered roller bearings interchangeable?
No, 32905 and 32009 bearings are not interchangeable. They have completely different bore sizes (25 mm vs 45 mm), outside diameters (47 mm vs 75 mm), and widths (15 mm vs 20 mm), serving different shaft diameters and load profiles.
References
- HI-TEC ASIA: Home. https://www.hitecbearings.id/ (2026-10-30)
- 32000 Series - Tapered Roller Bearings. https://pti.eu/pdf/lejer/taperoller/32000.pdf (2026-07-14)
- 32900 Series Tapered Roller Bearings. https://www.dsbrbearings.com/tapered-roller-bearings-32900-series.html (2026-09-05)