688TD / 672
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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: 688TD / 672
Category: Tapered Roller Bearings
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Weight and Dimensions
Bore (d): 100.211 mm 3.9453 in
Taper: 1:19.2
Outer (D): 168.275 mm 6.6250 in
Width (T): 95.250 mm 3.7500 in
Width (B): 95.250 mm 3.7500 in
Weight: 8.38 kg
Data from Timken (medias)
Dynamic Radial Load Rating – 1M Revs (C1) : 435000 N
Dynamic Radial Load Rating – 90M Revs (C90) : 64800 N
Dynamic Radial Load Rating 2-Row – 90M Revs (C90-2row): 113000 N
Dynamic Axial Rating – 90M Revs (Ca90): 52200 N
e Factor: 0.47
K Factor: 1.24
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 688TD / 672 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 688TD / 672 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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