Spherical Roller Bearings – Brass Cage

TIMKEN Product Introduction

**TIMKEN Spherical Roller Bearings with Brass Cage: Engineered for Durability and High Performance**

TIMKEN Spherical Roller Bearings with brass cages represent a pinnacle of engineering excellence, designed to deliver unmatched reliability in demanding industrial and automotive applications. These bearings are built to accommodate heavy radial and axial loads while compensating for misalignment, making them indispensable in harsh operating environments. The incorporation of a high-strength brass cage enhances performance, ensuring smooth operation, reduced friction, and extended service life—even under extreme conditions.

### **Technical Features & Design Advantages**
TIMKEN’s Spherical Roller Bearings are precision-engineered with a self-aligning design, allowing them to tolerate shaft misalignment up to **±3 degrees**, which minimizes stress concentrations and prevents premature failure. The **brass cage (also known as a brass retainer)** plays a critical role in these bearings by offering superior mechanical stability, excellent heat dissipation, and resistance to wear compared to steel or polymer cages.

Key technical attributes include:
– **High Load Capacity:** Optimized roller geometry and premium steel construction enable these bearings to handle heavy radial and axial loads simultaneously.
– **Enhanced Lubrication Retention:** The brass cage aids in maintaining proper lubricant distribution, reducing metal-to-metal contact and wear.
– **Thermal & Corrosion Resistance:** Brass provides inherent resistance to high temperatures and corrosive environments, making these bearings ideal for applications exposed to moisture, dust, or chemicals.
– **Low Maintenance & Longevity:** The robust cage design minimizes friction and prevents roller skewing, significantly extending bearing life even in high-speed applications.

### **Performance Advantages in Industrial & Automotive Systems**
TIMKEN Spherical Roller Bearings with brass cages excel in applications where reliability and durability are non-negotiable. Their ability to operate under misaligned conditions reduces downtime in heavy machinery, while their resistance to thermal expansion ensures consistent performance in high-temperature settings.

### **Typical Applications**
– **Industrial Machinery:** Used in gearboxes, crushers, mining equipment, and conveyor systems where shock loads and misalignment are common.
– **Automotive & Heavy Vehicles:** Ideal for wheel hubs, transmissions, and drivetrains in trucks, buses, and off-highway vehicles.
– **Precision Equipment:** Applied in paper mills, wind turbines, and steel processing lines where alignment flexibility and load capacity are critical.

By combining advanced metallurgy, precision manufacturing, and innovative cage design, TIMKEN’s Spherical Roller Bearings with brass cages set the benchmark for performance in mechanical power transmission. Whether in high-load industrial systems or precision automotive components, these bearings ensure **longer service life, reduced maintenance costs, and superior operational efficiency**.

For industries that demand resilience under pressure, TIMKEN continues to deliver solutions that keep machinery running smoothly—proving once again why it is a trusted name in power transmission technology.

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Part Number d - Bore D - Outer Diameter B - Outer Ring Width C0 - Static Radial Rating C1(2) - Dynamic Radial Rating (Two-Rows) Reference Thermal Speed Rating (Grease) Reference Thermal Speed Rating (Oil) Cage Type Cage Material
239/670KYMBW507C08C3
670 mm
900 mm
170 mm
11000000 N
5100000 N
350 rpm
410 rpm
YMB
Brass
231/670KYMBW507XC08
670 mm
1090 mm
336 mm
23400000 N
12800000 N
220 rpm
240 rpm
YMB
Brass
239/670YMBW33W45AC3
670 mm
900 mm
170 mm
11000000 N
5100000 N
350 rpm
410 rpm
YMB
Brass
231/670KYMBW906B
670 mm
1090 mm
336 mm
23400000 N
12800000 N
220 rpm
240 rpm
YMB
Brass
239/670YMBW509C08
670 mm
900 mm
170 mm
11000000 N
5100000 N
350 rpm
410 rpm
YMB
Brass
231/670KYMBW922
670 mm
1090 mm
336 mm
23400000 N
12800000 N
220 rpm
240 rpm
YMB
Brass
239/670YMBW509C08C3
670 mm
900 mm
170 mm
11000000 N
5100000 N
350 rpm
410 rpm
YMB
Brass
231/670YMBW507C08C6
670 mm
1090 mm
336 mm
23400000 N
12800000 N
220 rpm
240 rpm
YMB
Brass
239/670KYMBW906AC3
670 mm
900 mm
170 mm
11000000 N
5100000 N
350 rpm
410 rpm
YMB
Brass
241/670KYMDW879C7
670 mm
1090 mm
412 mm
30000000 N
15700000 N
130 rpm
130 rpm
YMD
Brass
240/630YMBW33W45AC7
630.000 mm
920 mm
290 mm
18700000 N
9010000 N
250 rpm
270 rpm
YMB
Brass
230/670KYMBW507C08
670 mm
980 mm
230 mm
15800000 N
7890000 N
330 rpm
380 rpm
YMB
Brass
241/670KYMDW886A
670 mm
1090 mm
412 mm
30000000 N
15700000 N
130 rpm
130 rpm
YMD
Brass
240/630YMDWEW919C8
630.000 mm
920 mm
290 mm
18700000 N
9010000 N
250 rpm
270 rpm
YMD
Brass
230/670KYMBW507C08C3
670 mm
980 mm
230 mm
15800000 N
7890000 N
330 rpm
380 rpm
YMB
Brass
241/670KYMDW886AC3
670 mm
1090 mm
412 mm
30000000 N
15700000 N
130 rpm
130 rpm
YMD
Brass
230/630KYMBW906AC3
630.000 mm
920 mm
212 mm
13400000 N
6940000 N
370 rpm
420 rpm
YMB
Brass
230/670KYMBW906AC3
670 mm
980 mm
230 mm
15800000 N
7890000 N
330 rpm
380 rpm
YMB
Brass
241/670YMDW33W45A
670 mm
1090 mm
412 mm
30000000 N
15700000 N
130 rpm
130 rpm
YMD
Brass
231/630KYMBW33W879C4
630.000 mm
1030 mm
315 mm
21200000 N
11700000 N
240 rpm
260 rpm
YMB
Brass