Tapered Roller Bearings – TSF (Tapered Single with Flange) Imperial

Tapered Roller Bearings Product Introduction

**TIMKEN TSF Tapered Roller Bearings: Precision, Durability, and Performance for Demanding Applications**

TIMKEN Tapered Roller Bearings are engineered to deliver unmatched reliability and performance in some of the most demanding industrial, automotive, and precision equipment applications. Among TIMKEN’s extensive bearing portfolio, the **TSF (Tapered Single with Flange) series** stands out for its robust design, high load-carrying capacity, and ease of installation. Available in both metric and imperial sizes, these bearings are optimized to handle combined radial and thrust loads efficiently, making them ideal for applications where precision, durability, and long service life are critical.

### **Technical Features & Design Advantages**
The **TSF tapered roller bearings** incorporate a single-row, flanged cup design that simplifies mounting and ensures precise alignment in housings. Key features include:

– **Flanged Outer Ring (Cup):** The integrated flange provides axial location, eliminating the need for complex housing shoulders or separate clamping mechanisms. This design enhances assembly accuracy and reduces installation time.
– **Premium Steel Construction:** Manufactured from high-quality, clean steel, TIMKEN TSF bearings undergo advanced heat treatment processes to enhance fatigue resistance and durability under heavy loads.
– **Optimized Roller & Cage Design:** Precision-ground tapered rollers and a sturdy cage distribute loads evenly, reducing friction and wear while maintaining smooth operation at high speeds.
– **Sealing & Lubrication Options:** Configurable with various sealing solutions (such as contact or non-contact seals) and lubrication methods to suit specific environmental conditions—whether in contaminated industrial settings or high-speed automotive systems.

### **Performance Benefits**
TIMKEN TSF bearings are built to excel in applications requiring high rigidity and resistance to misalignment. Their advantages include:

– **Superior Load Capacity:** The tapered geometry allows the bearings to support significant radial and axial loads simultaneously, making them ideal for gearboxes, wheel hubs, and heavy machinery.
– **Extended Service Life:** Advanced metallurgy and precision manufacturing reduce metal-to-metal contact, minimizing wear and extending operational life even in harsh conditions.
– **Reduced Maintenance Needs:** The robust design and high-quality materials decrease the frequency of re-lubrication and replacements, lowering total cost of ownership.

### **Typical Applications**
TIMKEN TSF tapered roller bearings are widely used across industries, including:

– **Industrial Machinery:** Conveyors, crushers, and mining equipment where shock loads and misalignment are common.
– **Automotive Systems:** Wheel ends, transmissions, and differentials requiring high precision and load management.
– **Precision Equipment:** Agricultural machinery, construction vehicles, and material handling systems that demand reliability under variable stresses.

Whether in metric or imperial sizes (such as the **TSF Imperial 658 series**), TIMKEN’s TSF tapered roller bearings provide a dependable solution for engineers seeking performance-driven components. By combining innovative design with decades of bearing expertise, TIMKEN ensures these bearings meet the rigorous demands of modern industrial and automotive applications—delivering efficiency, longevity, and reduced downtime.

For industries that cannot afford compromise, TIMKEN TSF bearings represent the gold standard in power transmission reliability.

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Part Number Series d - Bore D - Cup Outer Diameter B - Cone Width C - Cup Width T1 - Bearing Width to Flange C1 - Dynamic Radial Rating (1 million revolutions) C0 - Static Radial Rating
385 - 382-B
385
55.001 mm
96.838 mm
21.946 mm
17.826 mm
7.938 mm
108000 N
107000 N
36690 - 36620-B
36600
146.050 mm
193.675 mm
28.575 mm
23.020 mm
9.525 mm
196000 N
394000 N
3977 - 3920-B
3900
60 mm
112.713 mm
30.048 mm
23.813 mm
11.113 mm
139000 N
191000 N
36686 - 36620-B
36600
142.875 mm
193.675 mm
28.575 mm
23.020 mm
9.525 mm
196000 N
394000 N
3982 - 3920-B
3900
63.500 mm
112.713 mm
30.048 mm
23.813 mm
11.113 mm
139000 N
191000 N
3767 - 3720-B
3700
52.388 mm
93.264 mm
30.302 mm
23.813 mm
11.113 mm
122000 N
153000 N
3979 - 3920-B
3900
57.150 mm
112.713 mm
30.048 mm
23.813 mm
11.113 mm
139000 N
191000 N
3775 - 3720-B
3700
50.8 mm
93.264 mm
30.302 mm
23.813 mm
11.113 mm
122000 N
153000 N
3980 - 3920-B
3900
60.325 mm
112.713 mm
30.048 mm
23.813 mm
11.113 mm
139000 N
191000 N
358 - 354-B
355
45.001 mm
85.001 mm
21.692 mm
17.463 mm
7.938 mm
97000 N
88800 N
3776 - 3720-B
3700
44.983 mm
93.264 mm
30.302 mm
23.813 mm
11.113 mm
122000 N
153000 N
3981 - 3920-B
3900
58.738 mm
112.713 mm
30.048 mm
23.813 mm
11.113 mm
139000 N
191000 N
355 - 354-B
355
44.450 mm
85.001 mm
21.692 mm
17.463 mm
7.938 mm
97000 N
88800 N
3780 - 3720-B
3700
50.8 mm
93.264 mm
30.302 mm
23.813 mm
11.113 mm
122000 N
153000 N
3984 - 3920-B
3900
66.675 mm
112.713 mm
30.048 mm
23.813 mm
11.113 mm
139000 N
191000 N
3660 - 3620-B
3600
20.638 mm
61.913 mm
30.417 mm
23.813 mm
9.525 mm
88600 N
89800 N
3779 - 3720-B
3700
47.625 mm
93.264 mm
30.302 mm
23.813 mm
11.113 mm
122000 N
153000 N
39250 - 39412-B
39000
63.500 mm
104.775 mm
21.999 mm
15.875 mm
10.320 mm
115000 N
120000 N
334 - 332-B
335
30.163 mm
80 mm
22.403 mm
17.826 mm
7.938 mm
79500 N
83400 N
34274 - 34481-B
34000
69.952 mm
122.238 mm
23.012 mm
21.430 mm
7.938 mm
102000 N
136000 N