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Heavy Duty Needle Roller Bearings (Machined)
Heavy Duty Needle Roller Bearings (Machined) offer high load capacity in compact form. With precision-machined outer rings and tightly packed needle rollers, they are ideal for demanding applications where space is limited and performance is critical.
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Total 475 Results
Part Number
System of Measurement
Construction
Seal Type
Inner Ring
Series
Bore Dia
Outer Dia
Width
Dynamic Radial Load
Static Radial Load
Max Speed
Weight
NA4834-XL
Metric
Single Row
Open
Yes
With Inner Ring
170 mm
215 mm
45 mm
47025 lbf
114750 lbf
2600 rpm
3960 g
RNA4832-XL
Metric
Single Row
Open
No
Without Inner Ring
175 mm
200 mm
40 mm
40725 lbf
97875 lbf
2700 rpm
1700 g
NA4836-XL
Metric
Single Row
Open
Yes
With Inner Ring
180 mm
225 mm
45 mm
49275 lbf
123750 lbf
2400 rpm
4200 g
RNA4834-XL
Metric
Single Row
Open
No
Without Inner Ring
185 mm
215 mm
45 mm
47025 lbf
114750 lbf
2600 rpm
2540 g
NA4838-XL
Metric
Single Row
Open
Yes
With Inner Ring
190 mm
240 mm
50 mm
57375 lbf
155250 lbf
2300 rpm
5610 g
RNA4836-XL
Metric
Single Row
Open
No
Without Inner Ring
195 mm
225 mm
45 mm
49275 lbf
123750 lbf
2400 rpm
2680 g
NA4840-XL
Metric
Single Row
Open
Yes
With Inner Ring
200 mm
250 mm
50 mm
58500 lbf
162000 lbf
2200 rpm
5840 g
RNA4838-XL
Metric
Single Row
Open
No
Without Inner Ring
210 mm
240 mm
50 mm
57375 lbf
155250 lbf
2300 rpm
3210 g
NA4844-XL
Metric
Single Row
Open
Yes
With Inner Ring
220 mm
270 mm
50 mm
61875 lbf
177750 lbf
2000 rpm
6380 g
RNA4840-XL
Metric
Single Row
Open
No
Without Inner Ring
220 mm
250 mm
50 mm
58500 lbf
162000 lbf
2200 rpm
3350 g
NA4848-XL
Metric
Single Row
Open
Yes
With Inner Ring
240 mm
300 mm
60 mm
90000 lbf
243000 lbf
1800 rpm
10000 g
RNA4844-XL
Metric
Single Row
Open
No
Without Inner Ring
240 mm
270 mm
50 mm
61875 lbf
177750 lbf
2000 rpm
3620 g
NA4852-XL
Metric
Single Row
Open
Yes
With Inner Ring
260 mm
320 mm
60 mm
93375 lbf
261000 lbf
1700 rpm
10600 g
RNA4848-XL
Metric
Single Row
Open
No
Without Inner Ring
265 mm
300 mm
60 mm
90000 lbf
243000 lbf
1800 rpm
5400 g
High Load Capacity and Compact Design
Heavy Duty Needle Roller Bearings (Machined) are renowned for their impressive load-carrying capabilities within a small cross-section. This unique design allows engineers to optimize space without sacrificing performance.
The numerous, thin needle bearing needles or needle rollers maximize the contact area between the rolling elements and the raceways, enabling these bearings to support substantial radial loads far exceeding what conventional bearings of similar size might handle.
This makes them an ideal choice for applications where space is severely limited but high performance and robust support are essential, such as in automotive transmissions, heavy-duty gearboxes, agricultural machinery, and various industrial equipment.
The numerous, thin needle bearing needles or needle rollers maximize the contact area between the rolling elements and the raceways, enabling these bearings to support substantial radial loads far exceeding what conventional bearings of similar size might handle.
This makes them an ideal choice for applications where space is severely limited but high performance and robust support are essential, such as in automotive transmissions, heavy-duty gearboxes, agricultural machinery, and various industrial equipment.
Wide Range of Needle Roller Bearing Sizes
We offer one of the most comprehensive selections of needle roller bearing sizes in the market. Whether you need compact bearings for tight assemblies or heavy duty bearings for industrial equipment, TFL Bearings has the right product. Our catalog includes drawn cup needle bearings, sealed needle bearings, and needle roller and cage assemblies, ensuring compatibility with various applications.
For easy selection, we provide detailed needle bearing size charts and roller bearing dimensions to help engineers match bearings to their load and space requirements. With decades of expertise, our team can also support custom solutions for non-standard bearing dimensions.
For easy selection, we provide detailed needle bearing size charts and roller bearing dimensions to help engineers match bearings to their load and space requirements. With decades of expertise, our team can also support custom solutions for non-standard bearing dimensions.
Optimized Cage Design for Durability and Speed
The bearing cage is a crucial part of any needle roller and cage assembly. At TFL Bearings, we use high-strength materials and precise molding techniques to create cages that maintain optimal roller alignment and minimize friction during high-speed operation. This results in reduced wear, quieter performance, and greater reliability under continuous operation.
We offer both caged roller bearings and needle cage bearings, depending on your application’s speed, lubrication, and load demands. The right cage design helps prevent roller skewing, reduces heat generation, and improves operating life. It is especially vital in compact machines or automated systems where failure is not an option.
We offer both caged roller bearings and needle cage bearings, depending on your application’s speed, lubrication, and load demands. The right cage design helps prevent roller skewing, reduces heat generation, and improves operating life. It is especially vital in compact machines or automated systems where failure is not an option.
FREQUENTLY ASKED QUESTIONS
What are Heavy Duty Needle Roller Bearings (Machined) primarily used for?
Heavy Duty Machined Needle Roller Bearings are primarily utilized in demanding industrial and automotive applications. This includes, but is not limited to, high-load sections of automotive transmissions, robust gearboxes, heavy machinery like construction equipment, agricultural machinery, and various industrial pumps and compressors. Their design makes them ideal for scenarios requiring high load capacity, precise rotation, and compact installation space.
How do machined needle roller bearings differ fundamentally from drawn cup needle bearings?
The fundamental difference lies in their outer ring construction. Machined needle roller bearings feature a solid, precisely machined outer ring, which provides superior rigidity, higher radial load capacity, and better running accuracy. In contrast, drawn cup needle bearings have a thin, pressed outer shell. While more economical for certain applications, the drawn cup design offers less rigidity and a lower load capacity compared to the machined variant, making the machined bearings better suited for heavy duty and high-precision applications.
How do I interpret a needle roller bearing size chart?
You can find comprehensive information on roller bearing dimensions, needle roller bearing dimensions, and various size charts directly on our TFL Bearings website. We provide detailed product specifications for each heavy-duty machined needle roller bearing type, including bore diameter, outer diameter, width, and dynamic/static load ratings.
Additionally, you can download our full needle roller bearing dimensions chart or roller bearing size chart from our resources section. If you require further assistance or custom roller bearing dimensions sizes, our technical support team is readily available to provide expert guidance.
Additionally, you can download our full needle roller bearing dimensions chart or roller bearing size chart from our resources section. If you require further assistance or custom roller bearing dimensions sizes, our technical support team is readily available to provide expert guidance.