Single Row Super Precision Cylindrical Roller Bearings
N 10 series single row super-precision cylindrical roller bearings are used in high-speed machine tool spindle arrangements where accurate radial support, low heat generation, and stable running performance are required. This category focuses on single row N-type cylindrical roller bearings with an open design and tapered 1:12 bore.
The product range covers models from N 1008 to N 1024, including common SKF interchangeable configurations such as N 1008 KPHA/SP, N 1010 KTN/SP, N 1016 KTNHA/HC5SP, and N 1020 KTN9/SP. These bearings are commonly used in precision spindle systems for grinding machines, CNC machining centers, milling machines, and other high-speed equipment.
This page is intended for buyers who already know they need a single row spindle cylindrical roller bearing and want to compare bore size, cage type, roller material, speed rating, and suffix configuration. For applications requiring higher radial rigidity or integrated axial-radial support, the parallel double row or axial-radial super-precision bearing categories may be more suitable.
How to Select N 10 Series Bearings by Spindle Requirement
Selection of N 10 series single row precision cylindrical roller bearings usually starts with the spindle shaft size and available housing space. In this category, bore diameters range from 40 mm to 120 mm, with common models such as N 1008, N 1010, N 1012, N 1016, N 1020, and N 1024.
After confirming the bearing size, buyers should compare the maximum speed, cage material, roller material, and permissible axial displacement. For high-speed spindle positions, these details are often more important than simply matching the basic bearing dimensions.
Single row N-type bearings are especially useful where the spindle arrangement requires precise radial support and allows axial displacement between the shaft and housing. This makes them different from double row cylindrical roller bearings, which are normally selected when higher radial stiffness is the main requirement.
Understanding KPHA, KTN, KTN9, KTNHA, SP and HC5SP Suffixes
For single row super-precision cylindrical roller bearings, the suffix is a key part of the model number. Buyers should not select only by the base number such as N 1010 or N 1020, because suffixes such as KPHA, KTN, KTN9, KTNHA, SP, and HC5SP may indicate important differences in cage design, roller material, and precision configuration.
Models with /SP are commonly used for super-precision spindle applications. Models with /HC5SP include Si3N4 ceramic rolling elements, which can help reduce rolling mass and improve high-speed performance in suitable spindle designs.
The product data also includes both PEEK cage, outer ring centred designs and PA66 cage, roller centred designs. When replacing an SKF bearing, TFL recommends confirming the complete suffix from the old bearing marking, machine manual, or spindle drawing before ordering.
When Single Row Bearings Are the Right Spindle Choice
Single row super-precision cylindrical roller bearings are suitable for spindle positions where high speed, controlled radial support, and lower friction are important. They are commonly found in grinding spindles, milling spindles, boring spindles, CNC machining centers, and precision turning equipment.
This bearing type is not intended to replace every super-precision spindle bearing arrangement. If the spindle requires greater radial rigidity, a double row super-precision cylindrical roller bearing may be more appropriate. If the application requires integrated axial and radial load support, a super-precision axial-radial cylindrical roller bearing should be considered instead.
If you are unsure which category fits your spindle design, send TFL the old bearing number, SKF reference, spindle drawing, speed requirement, or bearing photo. We can help confirm whether your application needs a single row N 10 series bearing or one of the parallel super-precision bearing categories.
FREQUENTLY ASKED QUESTIONS
Which models are included in this single row super-precision category?
This category mainly includes N 10 series single row super-precision cylindrical roller bearings, such as N 1008, N 1010, N 1012, N 1016, N 1020, and N 1024, with suffixes including /SP and /HC5SP.
Why is the complete suffix important?
The complete suffix can indicate differences in precision grade, cage design, roller material, and high-speed performance. For example, /HC5SP models include ceramic rolling elements, while different KTN or KPHA configurations may use different cage designs.
Are these bearings suitable for all spindle applications?
No. Single row super-precision cylindrical roller bearings are best suited for high-speed radial support positions. For applications requiring higher radial rigidity, double row bearings may be better. For rotary tables or combined axial-radial support, axial-radial cylindrical roller bearings are usually more suitable.
Can TFL help identify an SKF interchangeable model?
Yes. TFL can help identify SKF interchangeable N 10 series single row precision cylindrical roller bearings based on the old bearing marking, SKF part number, spindle drawing, or operating requirements.
What information should I provide for selection?
Please provide the part number, bore diameter, outside diameter, width, speed requirement, lubrication method, and any visible suffix markings. A bearing photo or spindle drawing can also help confirm the correct model.