Tapered Roller Bearings – SR (Matched Bearing Assembly, SET-RIGHT™)

Tapered Roller Bearings Product Introduction

**TIMKEN Tapered Roller Bearings: Engineered for Precision, Durability, and Performance**

TIMKEN’s tapered roller bearings represent the pinnacle of engineering excellence, delivering unmatched reliability and performance in demanding industrial, automotive, and precision applications. Among its extensive portfolio, the **2TS (Matched Bearing Assembly)** and **SR (Matched Bearing Assembly, SET RIGHT™)** series stand out as advanced solutions designed to optimize load distribution, reduce friction, and extend service life in high-stress environments.

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

TIMKEN’s **2TS matched bearing assemblies** combine two single-row tapered roller bearings into a pre-set, pre-lubricated unit, simplifying installation and ensuring consistent performance. These assemblies are precision-matched to maintain optimal internal clearance, reducing axial play and enhancing rotational accuracy. Key features include:
– **Superior Load Capacity:** Engineered to handle combined radial and thrust loads efficiently, making them ideal for applications with complex force dynamics.
– **Precision Alignment:** Pre-adjusted settings minimize deflection and misalignment, reducing wear and vibration.
– **Robust Construction:** High-carbon chromium steel construction with advanced heat treatment ensures durability under extreme conditions.

The **SR (SET RIGHT™) series** takes performance further with TIMKEN’s proprietary **SET RIGHT™ technology**, which ensures consistent preload and alignment even under fluctuating operational stresses. This innovation is critical in applications requiring ultra-precise positioning, such as machine tool spindles or high-speed gearboxes.

### **Performance Benefits**
– **Extended Service Life:** Optimized internal geometries and premium steel alloys reduce metal fatigue and micropitting.
– **Reduced Maintenance:** Pre-lubricated and sealed options (where applicable) minimize downtime and relubrication needs.
– **Energy Efficiency:** Low-friction designs decrease power consumption, contributing to sustainable operations.

### **Typical Applications**
TIMKEN’s tapered roller bearings are trusted across industries where reliability is non-negotiable:
– **Industrial Machinery:** Conveyors, crushers, and heavy-duty gearboxes benefit from the 2TS series’ load-handling robustness.
– **Automotive Systems:** Wheel hubs, transmissions, and differentials leverage SET RIGHT™ bearings for vibration-free performance at high speeds.
– **Precision Equipment:** Machine tool spindles and robotics rely on SR bearings for micron-level accuracy and rigidity.

With over a century of metallurgical expertise, TIMKEN continues to set the benchmark in tapered roller bearing technology. Whether in extreme industrial environments or high-precision mechanisms, the 2TS and SR series deliver **enduring performance, reduced downtime, and operational efficiency**—proving why TIMKEN remains a global leader in mechanical power transmission solutions.

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Part Number d - Bore D - Cup Outer Diameter T - Width C - Widthh C1 - Dynamic Radial Rating (1 million revolutions)
JM207049 - JM207010 (M207049XS - M207010ES)
55 mm
95 mm
64 mm
52.418 mm
227000 N
JH307749 - JH307710 (H307749XS - H307710ES)
55 mm
110 mm
86 mm
71.415 mm
433000 N
JH307749 - JH307710 (H307749XR - H307710ER)
55 mm
110 mm
95.4 mm
80.815 mm
433000 N
JLM508748 - JLM508710 (LM508748XS - LM508710ES)
60 mm
95 mm
54 mm
43.491 mm
170000 N
JW4549 - JW4510 (K983135 - K998908)
45 mm
95 mm
64 mm
46 mm
206000 N
JM511946 - JM511910 (M511946XS - M511910ES)
65 mm
110 mm
62 mm
50.489 mm
291000 N
JM511946 - JM511910 (JXH6558A - JYH11058RSR)
65 mm
110 mm
114.3 mm
102.718 mm
291000 N
JH211749 - JH211710 (H211749XS - H211710ES)
65 mm
120 mm
86 mm
71.402 mm
388000 N
JLM813049 - JLM813010 (LM813049XS - LM813010ES)
70 mm
110 mm
58 mm
46.519 mm
199000 N
JM612949 - JM612910 (M612949XS - M612910ES)
70 mm
115 mm
64 mm
51.507 mm
310000 N
JLM714149 - JLM714110 (LM714149XS - LM714110ES)
75 mm
115 mm
56 mm
43.502 mm
244000 N
JM714249 - JM714210 (M714249XS - M714210ES)
75 mm
120 mm
69 mm
57 mm
277000 N
JH415647 - JH415610 (H415647XS - H415610ES)
75 mm
145 mm
112 mm
93.4 mm
604000 N