240 Series Spherical Roller Bearings

240 series spherical roller bearings feature an extra wide cross-section with compact outer diameter. They deliver outstanding self-aligning performance and heavy combined radial & axial load capacity, ideal for limited installation space. Widely used on rotary kilns, ball mills, rotary dryers and mining heavy machinery. Available in K30 tapered bore, W33 lubrication groove, CA/CC cage and C3/C4 clearance variants.

Classification :

Spherical Roller Bearings

Keywords :

spherical roller bearing

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240 Series Spherical Roller Bearings | Extra Wide Compact Heavy Load Bearings

24030 Spherical Roller Bearing

24034 Spherical Roller Bearing

24036 Spherical Roller Bearing

Core Advantages

Extra wide roller design with compact outer diameter, fits limited installation space

Strong self-aligning capacity to compensate shaft deflection and misalignment

High capacity for heavy combined radial & axial loads under low speed

ISO standard dimensions, fully interchangeable with mainstream brands

High carbon chromium bearing steel for long service life in harsh mining & cement conditions

Multiple variants: K30 tapered bore, W33 grease groove, CA/CC cage, C3/C4 clearance

Typical Applications

Rotary kilns and rotary dryers in cement industry

Ball mills and vertical mills for mineral processing

Heavy mining machinery and large belt conveyor drums

Low-speed heavy rotary equipment with limited mounting space

Metallurgy and large industrial rotary machinery

1. Full Base Model Dimension Table of Hot Selling 240 Series (d/D/B mm)

Bearing Number	d(mm)	D(mm)	B(mm)	Bearing Number	d(mm)	D(mm)	B(mm)
24024	120	180	60	24038	190	290	100
24026	130	200	69	24040	200	310	109
24028	140	210	69	24044	220	340	120
24030	150	225	75	24048	240	360	128
24032	160	240	80
24034	170	260	90
24036	180	280	100

Get Wholesale FOB Price for All 240 Spherical Roller Bearing Variants

Full stock of K30 tapered bore, W33 lubrication groove, CA/CC cage, C3/C4 clearance spherical roller bearings. Support mixed batch order & OEM custom export packaging, fast sea & air shipment for global machinery distributors.

Request Wholesale Quotation Check All Spherical Roller Series

2. K30 Tapered Inner Bore Series (1:30 Taper Hole)

Complete Model	d/D/B mm	Parameter & Description	Application Scenario
24024K30	120/180/60	1:30 tapered bore, mount with adapter sleeve	Medium rotary dryer & mining drum
24030K30	150/225/75	1:30 taper for heavy low speed rotary equipment	Cement rotary kiln support
24036K30	180/280/100	K30 tapered bore for easy installation and removal	Large ball mill bearing position
24040K30	200/310/109	K30 + C3 clearance optional	Heavy mineral rotary dryer
24048K30	240/360/128	Large size K30 tapered bore bearing	Big rotary kiln support bearing

3. W33 With Outer Ring Grease Groove & Lubrication Holes

Complete Model	d/D/B mm	Feature & Alias	Working Condition
24024W33	120/180/60	3 grease holes, continuous re-lubrication	24h running medium rotary equipment
24030W33	150/225/75	Outer ring grease groove for remote lubrication	Cement rotary kiln
24036W33	180/280/100	W33 groove, CA cage optional	Mineral ball mill
24040W33	200/310/109	Heavy duty low speed continuous operation	Large rotary dryer
24048W33	240/360/128	Full width grease groove for heavy rotary machinery	Big cement kiln equipment

4. CA / CC Cage Variant Specification

Complete Model	d/D/B mm	Cage Explanation	Suitable Equipment
24024CC	120/180/60	Stamped steel cage, cost effective	Medium rotary dryer
24030CC	150/225/75	Stamped steel cage for general heavy load	Cement rotary kiln
24036CA	180/280/100	Machined brass cage, anti-shock performance	Heavy ball mill equipment
24040CA	200/310/109	Machined brass cage for low speed heavy load	Large mineral rotary dryer
24048CA	240/360/128	Solid brass cage for extreme heavy load	Big rotary kiln

5. C3 / C4 Internal Radial Clearance Table

Complete Model	Clearance Grade	Parameter Description	Working Environment
24024C3	C3 Increased Clearance	Compensate thermal expansion at high temperature	Medium rotary dryer
24030C3	C3 Increased Clearance	For high temperature heavy rotary equipment	Cement rotary kiln
24036C3	C3 Increased Clearance	Most popular clearance for kiln & mill machinery	Mineral ball mill
24040C4	C4 Extra Increased Clearance	Extra allowance for strong heat & heavy load	High temp large rotary dryer
24048C4	C4 Extra Increased Clearance	For extreme heavy load and high heat	Large cement rotary kiln

FAQ

What is the difference between 240 series and 232 series spherical roller bearings?

240 series has a more compact outer diameter with extra wide width, designed for installation space constraints. Its tapered bore suffix is K30 (1:30 taper). 232 series has larger outer diameter with K (1:12 taper), mainly for vibrating screens.

What equipment are 240 series spherical roller bearings commonly used on?

They are widely used on cement rotary kilns, ball mills, rotary dryers and low-speed heavy mining rotary equipment.

What does K30 / W33 suffix mean for 240 bearings?

K30 stands for 1:30 tapered inner bore for mounting with adapter sleeve. W33 means outer ring grease groove with 3 lubrication holes for continuous re-greasing.

CC and CA cage, which one should I choose?

CC is stamped steel cage for cost efficiency. CA is machined brass cage, better for low speed heavy shock loads.

Do you support OEM and custom export packaging?

Yes, we support OEM with our YJZY brand and custom export packaging for bulk importers and machinery distributors.

Category Overview

Spherical Roller Bearings are double-row, self-aligning rolling bearings with barrel-shaped rollers and a spherical outer raceway. They are specially designed to accommodate heavy radial loads, impact loads, and moderate axial loads, while automatically compensating for shaft deflection and mounting misalignment.With exceptional rigidity, durability, and low maintenance requirements, they are widely used in heavy industrial machinery operating under severe conditions.

Our Series Breakdown

We offer a complete range of spherical roller bearing series to meet different load, size and application needs:

Series	Features	Typical Applications
222 Series	Compact design, medium load capacity, good self-aligning performance	General heavy machinery, reducers, fans, pumps
223 Series	Enhanced load capacity, wider cross-section, strong shock resistance	Crushers, vibrating screens, conveyors, mining equipment
230 Series	Low cross-section, high stiffness, suitable for restricted radial space	Large gearboxes, paper machines, industrial transmission
240 Series	Extra wide cross-section, ultra-heavy load capacity, long service life	Large-scale crushers, mills, metallurgical equipment
231 Series	High load, large size, good axial load resistance	Heavy reducers, rolling mills, large fans
241 Series	Super heavy-duty, large dimensions, high reliability	Metallurgical machinery, mining equipment, large crushers

Core Advantages

Excellent self-aligning ability to compensate shaft misalignment
Extremely high radial and impact load capacity
Stable operation under harsh conditions
Good sealing and lubrication performance
Long service life and low maintenance cost

Typical Applications

Widely used in mining machinery, crushing equipment, vibrating screens, reducers, cement machinery, metallurgical equipment, papermaking machinery, conveyors, and other heavy-duty industrial equipment.

PRODUCT TESTING

Bearing Forging

Bearing Annealing

Turning Process

Quenching

Bearing Assembly

Bearing Clearance Testing

Grease injection

Bearing Marking

Spherical Roller Bearings