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NN3015KC9NAP4

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NTN NN3015KC9NAP4 is a double row cylindrical roller bearing with a 75 mm bore and tapered bore (1:12). The NN type configuration has no flanges on the outer ring, allowing axial expansion. Features a machined brass cage and P4 precision class for high-speed, high-accuracy applications such as machine tool spindles.

MODEL NN3015KC9NAP4

BRAND

SKU

272103

WEIGHT

2.346 lb

UOM

each

$719.91 Each

Prices are subject to change

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Bearing Modification Services

Typically Ships in: 1 day

Returnable:No

B (in)

1.1811

Bore Type

Tapered

Bore type

Tapered

C (in)

1.1811

Cage Material

High Strength, 2 piece, Machined Brass

Cage material

High strength, 2 piece, machined brass

Configuration

Two

D (in)

4.5276

d (in)

2.9528

Da max

4.1732 in

da min

3.2087 in

Db max

4.2717 in

db min

3.3071 in

Db min

4.1732 in

Dynamic Load Rating

21700 lbf

Dynamic load rating

21700 lbf

Enclosure

Open

Ew

4.1339 in

I.D.

75 mm

Limiting Speed - Grease

5400 RPM

Limiting speed - grease

5400 RPM

Limiting Speed - Oil

6300 RPM

Limiting speed - oil

6300 RPM

Material

Hardened alloy steel

O.D.

115 mm

Oil Hole

w/o Oil Hole

Oil hole

w/o Oil Hole

Operating Temperature Range

-40 to 250 °F

Operating temperature range

-40 to 250 ºF

Precision

ISO class 4

r (in)

0.0433

Radial Internal Clearance

C9NA

Radial internal clearance

C9NA

ras max

0.0394 in

Static Load Rating

33500 lbf

Static load rating

33500 lbf

Taper

1 to 12

Type

Cylindrical Roller Bearing

Technical Specifications
Type
Cylindrical Roller Bearing
Bore Type
Tapered
Material
Hardened Alloy Steel
Cage Material
High Strength, 2 piece, Machined Brass
Limiting Speed - Oil
6300 RPM
Limiting Speed - Grease
5400 RPM
Taper
1:12
Precision
ISO Class 4
Configuration
Two
Oil Hole
w/o Oil Hole
Radial Internal Clearance
C9NA
Static Load Rating
33500 lbf149000 N149.00 kN
Dynamic Load Rating
21700 lbf96500 N96.50 kN
Enclosure
Open
2.346 lb1.064 kg
Operating Temperature Range
-40 to 250 F-40 to 120 C
Dimensional Specifications


Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NN - Dimensions

d
2.9528 in75.000 mm
D
4.5276 in115.000 mm
B
1.1811 in30.000 mm
C
1.1811 in30.000 mm
Ew
4.1339 in105.000 mm
r
0.0433 in1.100 mm
da min
3.2087 in81.500 mm
db min
3.3071 in84.000 mm
Da max
4.1732 in106.000 mm
Db min
4.1732 in106.000 mm
Db max
4.2717 in108.500 mm
ras max
0.0394 in1.000 mm

How do I choose the right type of bearing for my application?

Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.

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Item must be unused.

Item must be in it's original package.