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Product Description
The 352220 (GOST current designation) is a Double Row Tapered Roller Bearing with boundary dimensions of 100×180×112mm, featuring an exceptionally high static-to-dynamic load ratio (Cor/Cr = 1.24), which reflects outstanding shock load resistance and suitability for medium-to-high-speed, high-load applications.
Cross-referenced as 97520E under the original GOST designation system, this bearing belongs to the heavy-duty 3522xx series and is specifically engineered for the most demanding industrial environments — including applications with severe misalignment, contamination, vibration, and impact loading.
With a wide cross-section (B/d ratio = 1.120) and limiting speeds of 1,200 rpm (grease) / 1,600 rpm (oil) — the highest speed rating in the 3522xx series — the 352220 is the premier choice when maximum load capacity at higher rotational speeds is required for 100mm shaft applications.
Parameter | Value |
Part Number (Current) | 352220 |
Cross Reference | 97520E |
Bearing Type | Double Row Tapered Roller Bearing |
Bore Diameter (d) | 100 mm |
Outer Diameter (D) | 180 mm |
Width (B) | 112 mm |
Dynamic Load Rating (Cr) | 410 kN |
Static Load Rating (Cor) | 510 kN |
Cor/Cr Ratio | 1.24 (excellent shock resistance) |
Limiting Speed (Grease) | 1,200 r/min |
Limiting Speed (Oil) | 1,600 r/min |
Material | GCr15 / 52100 / 100Cr16 / SUJ2 Chrome Steel |
Seal Type | Open / Shielded / Sealed (available) |
Clearance | C0, C2, C3, C4, C5 |
Precision Grade | ABEC 1/3/5/7/9；DIN620 P0/P6/P5/P4/P2 |
Brand | NKS / NEXANS / OEM available |
✅ Double Row Tapered Roller Design — Simultaneously handles heavy radial loads AND bidirectional axial loads, ideal for shaft applications with combined loading
✅ Cr=410kN / Cor=510kN — High static-to-dynamic ratio (Cor/Cr=1.24) provides exceptional resistance to shock loads and sudden overloads typical in mining and rolling mill startup conditions
✅ 100mm Bore / 180mm OD / 112mm Wide — Wide cross-section (B/d=1.120) delivers superior moment load resistance and enhanced shaft alignment stability for 100mm shaft applications
✅ 1,200/1,600 rpm Limiting Speed — Highest speed capability in the entire 3522xx series, suitable for medium-to-high-speed heavy-duty applications including industrial gearboxes and rolling mill drives
✅ Compact & Lightweight — Smallest and lightest member of the 3522xx family, enabling easier handling, installation, and maintenance without sacrificing load capacity
✅ Severe-Duty Engineered — Designed specifically for high loads, severe misalignment, contaminated environments, shocks, and vibrations per GOST heavy-duty standards
✅ GCr15 / 52100 Premium Chrome Steel — High-grade bearing steel offering exceptional hardness (HRC 60–65), wear resistance, and fatigue life under extreme loading
✅ Multi-Clearance & Precision Options — C0~C5 clearance and P0~P2 precision grades available to suit diverse application requirements
✅ Open / Shielded / Sealed Variants — Flexible sealing configurations for clean, dusty, or wet operating environments
✅ Full Interchangeability — Compatible with SKF, FAG, Timken, NSK same-dimension equivalents for seamless maintenance replacement
Based on the bearing's 100mm bore, 410kN dynamic load rating, high Cor/Cr ratio, and heavy-duty GOST-series construction:
Industry | Application |
Metallurgy / Steel Mills | Rolling mill roll neck bearings, heavy reducer output shafts |
Mining Equipment | Crusher main shafts, ball mill trunnion supports |
Heavy Gearboxes | Industrial gearbox primary/output shafts, multi-stage reducers |
Power Generation | Turbine auxiliary equipment, generator shaft supports |
Cement Industry | Rotary kiln support rollers, raw mill & cement mill drives |
Heavy Construction | Crane main hoisting gear, large excavator swing drives |
Paper & Pulp | Drive roll shafts in contaminated/wet environments |
Designation System | Part Number |
GOST Current | 352220 |
GOST Original | 97520E |
Material Equivalent | 52100 (AISI) / 100Cr16 (DIN) / SUJ2 (JIS) / GCr15 (GB) |
Interchangeable With | SKF, FAG, Timken, NSK same-dimension equivalents |
The 352220 is the smallest bore & highest speed member of the 3522xx heavy-duty series, anchoring the lower end of the bore range while maintaining the same outstanding Cr=410kN / Cor=510kN load ratings throughout:
Model | d × D × B | B/d Ratio | Cr | Cor | Speed (Grease) | Weight |
352220 | 100×180×112mm | 1.120 | 410 kN | 510 kN | 1,200 rpm | ~11.5 kg |
352222 | 110×200×125mm | 1.136 | 410 kN | 510 kN | 1,100 rpm | 16.4 kg |
352224 | 120×211×132mm | 1.100 | 410 kN | 510 kN | 1,000 rpm | 19.1 kg |
352226 | 130×230×150mm | 1.154 | 410 kN | 510 kN | 950 rpm | 26.5 kg |
352228 | 140×250×158mm | 1.129 | 410 kN | 510 kN | 850 rpm | 30.6 kg |
352230 | 150×270×170mm | 1.133 | 410 kN | 510 kN | — | 40.4 kg |
2352232 | 160×290×180mm | 1.125 | 410 kN | 510 kN | — | 46.2 kg |
352236 | 180×320×190mm | 1.056 | 410 kN | 510 kN | — | 62.7 kg |
Since 1997, Liaocheng Nexans Bearing Co., Ltd has been a trusted factory-direct manufacturer and global supplier of GOST-standard heavy industrial bearings.
Factory-Direct Pricing — No middlemen, competitive wholesale rates
Large Ready Stock — Fast delivery for 352220 / 97520E
Flexible MOQ — Suitable for both distributors and end-users
OEM / Private Label — Custom branding & packaging available
Full Export Documentation — CO, quality certificates, standard export packaging
Technical Support — Application-specific clearance (C0~C5) and precision grade (P0~P2) recommendations for your specific operating conditions
Email: export@nksbearing.com WhatsApp: +86-15562839480 Website: www.nksbearing.com
NEXANS Bearing — Your trusted factory-direct partner for GOST-standard heavy industrial bearings since 1997.
