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Features

Specifications

Type: Tapered Roller Bearing

Bearing Material: Bearing Steel GCr15

Bore: 90

Outer Diameter: 140

Width: 39

Model: Customizable

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33018 Double Row Tapered Roller Bearing

90x140x39 High Load Bearings

High Load Bearings 33018

Basic Infomation

Place of Origin: CHINA

Brand Name: Kesle

Payment & Shipping Terms

Delivery Time: 5-8 work days

Payment Terms: T/T,Western Union,MoneyGram,PayPal

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33018 Double Row Tapered Roller Bearing 90x140x39 High Load Bearings For Heavy Industry Transportation

Product Description

33018 Double Row Tapered Roller Bearing 90x140x39 High Load Bearings For Heavy Industry Transportation

Double Row Tapered Roller Bearing 33018 High Load For Heavy Industry Transportation. Tapered roller bearing 33018 is a double-row separable bearing designed for high radial and bidirectional axial combined loads, widely used in heavy industrial equipment and precision machinery.

Technical Parameters

Basic Dimensions

Bore: 90 mm
Outer diameter: 140 mm
Total width: 39 mm
Contact angle: 10°10'
Weight: 2.2-2.48 kg

Load Capacity

Dynamic load rating: 216-369 kN (varies with design optimizations)
Static load rating: 360-365 kN
Limiting speed: 4,500-4,800 r/min (dependent on lubrication and material)
Reference speed: 2,600-2,800 r/min

Structural Advantages

Double-row tapered rollers: Achieve high rigidity through line contact between rollers and raceways
Separable design: Allows independent installation of inner and outer rings, facilitating clearance adjustment and maintenance
Optimized contact angle (10°10'): Balances radial and axial load capabilities

Application Scenarios

Heavy Industrial Machinery

Mining crushers and ball mills: Handles high radial forces from grinding media
Rolling mills and large reducers: Stabilizes cyclic impact loads in industrial processing

Transportation Equipment

Heavy-duty truck axles and railway bogies: Supports dynamic loads during high-speed operation
Construction machinery: Used in excavator slewing rings and loader gearboxes for bidirectional positioning

Precision Machinery

Machine tool spindles and printing rollers: Ensures machining accuracy with low friction and high rigidity
Wind turbine gearboxes: Maintains stability in high-temperature, dusty environments

New Energy and Environmental Equipment

Biomass compressors: Withstands harsh conditions and enables long-term operation
Separable design: Reduces downtime by simplifying maintenance

Installation & Maintenance

Installation Methods

Interference fit: Heat inner ring to 80-100°C for thermal mounting. Use precision spacers to avoid raceway damage during press-fitting
Preload adjustment: Pair bearings with spacers or nuts to control axial clearance (0.03-0.08 mm for double-row bearings)

Lubrication Recommendations

Grease lubrication: Fill 1/3 of internal space with lithium-based grease (NLGI 2), suitable for -30°C to 150°C. Re-lubricate every 200 hours in high-temperature environments
Oil lubrication: Flow rate: 30-40 mL/min for high-speed applications to ensure cooling

Maintenance Checks

Monitor vibration and temperature: Shut down if temperature exceeds ambient by 40°C or vibration exceeds ISO 10816 standards
Use hydraulic pullers or induction heaters for disassembly to prevent damage

Standards & Certifications

Compliant with DIN ISO 355 and DIN 720 international standards
Aligned with GB/T 297-2015 (China) for dimensional tolerances and interchangeability
Optional versions meet API 610 for petrochemical applications

Key Considerations

Material selection: High-carbon chromium steel (GCr15) or ceramic hybrid materials for extreme conditions
Customization: Available options include special coatings and clearance classes to optimize performance for specific loads and speeds

Conclusion: The 33018 tapered roller bearing excels in heavy-duty applications requiring robust radial and axial support. Its separable design, high rigidity, and compliance with global standards make it a versatile choice for industries ranging from mining to renewable energy. Always match lubrication and installation practices to operational requirements for optimal longevity.

Bearing No.	d	D	T	B	C	R	r	C	C0	kg
33012	60	95	27	27	21	1.5	1.5	93.5	145	0.684
33013	65	100	27	27	21	1.5	1.5	98.1	157.7	0.74
33014	70	110	31	31	25.5	1.5	1.5	136	223	1.08
33015	75	115	31	31	25.5	1.5	1.5	139	232	1.12
33017	85	130	36	36	29.5	1.5	1.5	180.4	305.5	1.7
33018	90	140	39	39	32.5	2	1.5	215	360	2.18
33019	95	145	39	39	32.5	2	1.5	219	375	2.27
33020	100	150	39	59	32.5	2	1.5	224	390	2.37
33021	105	160	43	43	34	2.5	2	267	461	3.08
33022	110	170	47	47	37	2.5	2	287	502	3.81

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Contact Person :	orlenda li
Tel :	+8613713334285

33018 Double Row Tapered Roller Bearing 90x140x39 High Load Bearings For Heavy Industry Transportation

33018 Double Row Tapered Roller Bearing

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