Bearings & Transmission Components for Marine & Industry
Ball bearings, roller bearings, stern tube bearings, couplings, and gearbox parts — sourced from verified Chinese manufacturers and compatible with SKF, FAG, NSK, and Timken specifications.
CCS / BV Approved
OEM Cross-Reference
Bearing & Power Transmission Solutions for Demanding Applications
Bearings and transmission components are the foundation of every rotating machine — from main engines and propulsion shafts to pumps, compressors, and deck winches. The right bearing selection determines equipment lifespan, maintenance intervals, and operational reliability. In marine environments, where salt spray, vibration, and continuous operation are the norm, quality tolerances are critical.
Hicool supplies bearings and transmission parts from China’s leading manufacturers, many of whom produce to ISO 492 tolerances and hold classification society approvals. We cross-reference every order against OEM part numbers to ensure dimensional and performance equivalence with SKF, FAG, NSK, Timken, and NTN specifications.
Bearing Types & Applications
Our bearing range covers deep groove ball bearings (6200, 6300 series and variants) for general-purpose applications, spherical roller bearings (22200, 23000 series) for heavy loads with shaft misalignment, tapered roller bearings (30200, 32000 series) for combined radial and axial loads, and cylindrical roller bearings (NU, NJ, NUP series) for high radial load capacity in gearboxes and electric motors.
For marine propulsion, we supply white metal (Babbitt) stern tube bearings, water-lubricated polymer bearings (Thordon-compatible), and cutless rubber bearings. These components are critical for propeller shaft support and are supplied with classification society material certificates.
Transmission Components
Beyond bearings, we supply the mechanical transmission components that connect and transfer power between rotating equipment. Flexible couplings (jaw type, disc type, gear type) absorb misalignment and vibration between driver and driven equipment. Our range includes Lovejoy, Rexnord, and Renold-compatible designs in cast iron, steel, and stainless steel construction.
| Component | Standards | Size Range | Application |
|---|---|---|---|
| Deep Groove Ball Bearing | ISO 15, ISO 492 | ID 10 mm to 300 mm | Motors, pumps, fans |
| Spherical Roller Bearing | ISO 15, ISO 492 | ID 25 mm to 500 mm | Heavy machinery, conveyors |
| Stern Tube Bearing | CCS/BV type approved | Shaft dia. 100-800 mm | Propulsion shafting |
| Flexible Coupling | AGMA, ISO 14691 | Torque to 500 kNm | Engine-generator, pump drive |
| Reduction Gearbox | AGMA 6013, ISO 6336 | Power to 2,000 kW | Winch, crane, thrusters |
Product Range
Ball Bearings
Deep groove, angular contact, and self-aligning ball bearings. Standard and sealed variants. P0 to P5 precision grades.
Roller Bearings
Cylindrical, spherical, tapered, and needle roller bearings. Heavy-duty series for marine and industrial gearboxes.
Stern Tube Bearings
White metal (Babbitt), polymer, and rubber stern tube bearings for propeller shaft support. CCS/BV approved materials.
Flexible Couplings
Jaw, disc, gear, and grid couplings. Torsionally flexible designs for vibration isolation. Compatible with major OEM specifications.
Gearboxes & Reducers
Helical, worm, and planetary gearboxes for deck machinery, thrusters, and industrial drives. Ratio ranges from 1:5 to 1:200.
Bearing Housings
Plummer block housings (SN, SNL series), flanged housings, and custom cast housings. Split and solid designs.
Technical Specifications & Standards
| Parameter | Range / Standard |
|---|---|
| Bearing Inner Diameter | 10 mm to 500 mm+ |
| Bearing Precision | P0 (normal), P6, P5, P4 per ISO 492 |
| Bearing Steel | GCr15 (equivalent to AISI 52100), stainless 440C |
| Coupling Torque | Up to 500 kNm |
| Gearbox Power | Up to 2,000 kW |
| Classification | CCS, BV, ABS, DNV, LR, NK, KR |
| Testing | Vibration, noise, radial clearance, hardness |
| Lubrication | Grease, oil, water-lubricated (marine) |
Recent Supply Projects
38,000 DWT Bulk Carrier — Stern Tube Bearing Replacement
Supplied white metal stern tube bearings (aft and forward) with CCS material certificates. Dimensions matched to original OEM drawings. Delivered within 3 weeks to drydock schedule.
CCS Certified
Cement Plant — Complete Bearing Overhaul Package
Spherical roller bearings (22328, 23148 series) and plummer block housings for kiln drive and raw mill. 86 bearings supplied with full dimensional inspection reports.
ISO 492 P6
Offshore Platform — Crane Gearbox & Couplings
Replacement planetary gearbox (ratio 1:47, 800 kW) and flexible disc coupling for a 35-ton pedestal crane. BV witness testing at manufacturer facility.
BV Approved
Browse Bearings & Transmission
| Product | Type | Bore Range | Material | |
|---|---|---|---|---|
| Cylindrical Roller Bearing (NU/NJ Series) | Cylindrical Roller | 20 – 300 mm | Chrome steel GCr15 | View → |
| Deep Groove Ball Bearing (6200–6300 Series) | Deep Groove Ball | 10 – 120 mm | Chrome steel GCr15 | View → |
| Flexible Jaw Coupling (L-Type) | Jaw Coupling (L-Type) | 6 – 95 mm bore | Cast iron + PU spider | View → |
| Marine Shaft Rigid Flange Coupling | Rigid Flange Coupling | 50 – 500 mm shaft | Forged carbon / alloy steel | View → |
| Mechanical Seal (Single Spring, SiC/Carbon) | Mechanical Seal | 12 – 100 mm shaft | SiC / Carbon / TC | View → |
| Oil Seal TC Type (NBR/FKM) | Oil Seal (TC type) | 8 – 300 mm shaft | NBR (-40~+120°C) / FKM (-20~+200°C) | View → |
| Self-Aligning Ball Bearing (1200 Series) | Self-Aligning Ball | 10 – 100 mm | Chrome steel GCr15 | View → |
| Stern Tube Bearing (Thordon Compatible) | Stern Tube Bearing | 100 – 800 mm shaft | Polymer composite | View → |
| Taper Roller Bearing (30200–30300 Series) | Taper Roller | 15 – 200 mm | Chrome steel GCr15 | View → |
| Thrust Ball Bearing (51100–51200 Series) | Thrust Ball | 10 – 150 mm | Chrome steel GCr15 | View → |
Frequently Asked Questions
Can you cross-reference bearings to SKF or FAG part numbers?
Yes. Provide the OEM bearing designation (e.g., SKF 22328 CC/W33) and we will identify the equivalent from our approved manufacturers with matching dimensions, clearance class, and load ratings.
Are your bearings genuine branded or Chinese-manufactured?
We supply quality Chinese-manufactured bearings from ISO-certified factories, not counterfeit branded products. All bearings are clearly marked with the manufacturer’s own brand. Performance specifications meet or exceed the referenced OEM standards.
What precision grades are available?
Standard supply is P0 (normal) precision per ISO 492. Higher precision grades P6, P5, and P4 are available for applications requiring tighter tolerances, such as machine tool spindles or high-speed motors.
Can you supply stern tube bearings with classification approval?
Yes. Our stern tube bearing manufacturers hold CCS and BV type approvals. Bearings are supplied with material certificates and can be inspected by the classification society surveyor at the factory.
What is the lead time for non-standard bearing sizes?
Standard catalogue bearings ship within 1-2 weeks. Non-standard or large-bore bearings (above 300 mm ID) typically require 4-8 weeks depending on type and precision grade.
Related Pages
Related Products & Parts
Related Equipment
Guides & Articles
Need Bearings & Transmission Parts from China?
Send your specifications. Our team responds within 24 hours with pricing and lead times.
