NP868174 / 329172
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All Data Sourced from Official Brands
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Brand Alternative Bearings with Identical Specifications
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Customized Bearing Solutions Based on Parameters
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Fast Quotation Response
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OEM and Flexible Order Quantities Supported
Specifications
Availability: 100 pcs
Brand: HSN/ TIMKEN/ OEM
Bearing Number: NP868174 / 329172
Category: Tapered Roller Bearings
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Weight and Dimensions
Bore (d): 304.655 mm 11.9943 in
Taper: 1:12
Outer (D): 438.048 mm 17.2460 in
Width (T): 131.762 mm 5.1875 in
Width (B): 131.762 mm 5.1875 in
Weight: 65.38 kg
Data from Timken (medias)
Dynamic Radial Load Rating – 1M Revs (C1) : 1880000 N
Dynamic Radial Load Rating – 90M Revs (C90) : 280000 N
Dynamic Radial Load Rating 2-Row – 90M Revs (C90-2row): 487000 N
Dynamic Axial Rating – 90M Revs (Ca90): 159000 N
e Factor: 0.33
K Factor: 1.76
Product Properties
Precision: P0, P6, P5
Hardness: HRC58-62
Ring Material: GCr15, GCr15SiMn, 100CrMnSi6-4, etc.
Cage Material: Brass, Steel
Certificate: ISO9001:2015
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Downloads & Links
Timken Tapered Roller Bearings Guide
Product Description
The NP868174 / 329172 TDIT tapered roller bearing features a double inner ring design with a tapered bore, two single outer rings, and two rows of tapered rollers. This configuration provides high radial load capacity, bidirectional axial load support, and excellent rigidity for demanding operating conditions. The tapered bore inner ring allows secure interference mounting on rotating shafts while facilitating removal when regular maintenance is required. The pre-set assembly with an outer-ring spacer helps maintain accurate internal clearance and reliable operating performance.
The NP868174 / 329172 TDIT bearing is widely used in industrial equipment, heavy-duty gearboxes, mining machinery, construction equipment, and other demanding applications where reliable load support, accurate positioning, and long service life are required.
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