Tapered Roller Bearings – 2S (Matched Bearing Assembly, with snap ring spacer)

Tapered Roller Bearings Product Introduction

**TIMKEN Tapered Roller Bearings: Engineered for Precision and Durability in Demanding Applications**

TIMKEN’s tapered roller bearings are globally recognized for their superior load-carrying capacity, precision performance, and extended service life in high-stress industrial and automotive applications. Among the company’s extensive portfolio, the **2TS (Matched Bearing Assembly)** and **2S (Matched Bearing Assembly with Snap Ring Spacer)** series stand out as advanced solutions designed to optimize performance in complex mechanical systems. These matched bearing assemblies are engineered to deliver unmatched reliability, ease of installation, and operational efficiency in environments where axial and radial loads must be managed with precision.

### **Technical Features & Design Advantages**

The **TIMKEN 2TS and 2S tapered roller bearings** are pre-matched assemblies, ensuring optimal alignment and load distribution. Key features include:

– **Precision-Matched Sets:** The 2TS and 2S bearings are supplied as paired units, guaranteeing consistent internal clearance and preload, which enhances rotational accuracy and reduces vibration.
– **Robust Construction:** Manufactured from high-grade, clean steel, these bearings undergo advanced heat treatment processes to improve fatigue resistance and durability under heavy loads.
– **Snap Ring Spacer (2S Series):** The 2S variant incorporates a snap ring spacer, simplifying axial positioning and facilitating secure installation in housings, reducing the risk of misalignment.
– **Optimized Roller & Rib Design:** The tapered geometry ensures even load distribution across the rollers, minimizing edge stresses and extending bearing life.
– **Versatile Sealing Options:** Available with various sealing configurations to protect against contamination in harsh environments, such as industrial gearboxes or off-highway equipment.

### **Performance Benefits**

TIMKEN’s matched tapered roller bearings provide critical advantages in demanding applications:

– **Higher Load Capacity:** The tapered design efficiently manages combined radial and thrust loads, making them ideal for heavy machinery, automotive drivetrains, and large industrial gearboxes.
– **Reduced Friction & Heat Generation:** Precision-ground rollers and raceways minimize friction, improving energy efficiency and reducing operating temperatures.
– **Extended Service Life:** Advanced metallurgy and surface finishing techniques enhance wear resistance, reducing maintenance frequency and downtime.
– **Simplified Installation:** Pre-assembled units (especially the 2S with snap ring) ensure correct positioning, eliminating guesswork during mounting.

### **Typical Applications**

TIMKEN’s 2TS and 2S tapered roller bearings are widely used in:

– **Industrial Machinery:** Gearboxes, conveyors, pumps, and mining equipment requiring high radial/axial load support.
– **Automotive Systems:** Wheel hubs, differentials, and transmissions where precision and durability are critical.
– **Heavy-Duty Equipment:** Construction, agriculture, and material handling machinery subjected to shock loads and harsh conditions.
– **Precision Equipment:** Machine tool spindles and robotics where smooth, accurate rotation is essential.

By combining cutting-edge engineering with decades of expertise, TIMKEN’s tapered roller bearings ensure optimal performance, reliability, and cost-efficiency across a broad spectrum of industrial and automotive applications. Whether in extreme environments or precision systems, these matched bearing assemblies deliver the strength and longevity that engineers and maintenance professionals trust.

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Part Number Full Timken Part Number d - Bore D - Cup Outer Diameter T - Width C - Width Snap Ring Diameter Snap Ring Width C1 - Dynamic Radial Rating (1 million revolutions)
15578 - 15520 (X1S-15578 - K158879R)
N/A
25.400 mm
57.150 mm
39.243 mm
31.308 mm
59.72 mm
0.34 mm
94900 N
39590 - 39521 (K326056R - K326057R)
N/A
66.675 mm
112.713 mm
66.675 mm
53.975 mm
116.74 mm
6.35 mm
291000 N
LM67048 - LM67010 (K106817R - K106610R)
N/A
31.750 mm
59.131 mm
35.712 mm
27.584 mm
61.11 mm
3.96 mm
81300 N
399A - 394A (X5S-399A - XC914-SD)
N/A
68.263 mm
110 mm
49.433 mm
43.083 mm
114.05 mm
5.54 mm
172000 N