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NTN BL313ZNR is a single-row deep groove ball bearing with a 65 mm straight bore, single shielded enclosure, and snap ring groove. Features a steel cage and high carbon chrome steel construction. Designed for applications requiring radial load support with axial retention via snap ring.
MODEL BL313ZNR
$109.59 Each
Prices are subject to change
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Returnable:No
a (in)
0.1929
B (in)
1.2992
Ball Material
Steel
Ball material
Steel
Bore Type
Round
Bore type
Round
Cage Material
Steel
Cage material
Steel
Cage Type
Pressed
Cage type
Pressed
Configuration
One
D (in)
5.5118
d (in)
2.5591
D1
5.3240 in
D2
5.8937 in
Da max
5.0787 in
da max
3.3858 in
da min
2.9921 in
Enclosure
Single Shielded
f (in)
0.1091
I.D.
65 mm
Limiting Speed - Grease
4400 RPM
Limiting speed - grease
4400 RPM
Limiting Speed - Oil
5200 RPM
Limiting speed - oil
5200 RPM
Material
High carbon chrome steel
O.D.
140 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Precision
ISO class 0
r (in)
0.0827
r1
0.0197 in
Radial Internal Clearance
CN
Radial internal clearance
CN
ras max
0.0787 in
Type
Deep Groove Ball Bearing
Technical Specifications
Type | Deep Groove Ball Bearing |
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Pressed |
Cage Material | Steel |
Ball Material | Steel |
Limiting Speed - Oil | 5200 RPM |
Limiting Speed - Grease | 4400 RPM |
Precision | ISO Class 0 |
Configuration | One |
Radial Internal Clearance | CN |
Enclosure | Single Shielded |
Weight | 5.203 lb2.360 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 2.5591 in65.000 mm |
D | 5.5118 in140.000 mm |
B | 1.2992 in33.000 mm |
D1 | 5.3240 in135.230 mm |
D2 | 5.8937 in149.700 mm |
a | 0.1929 in4.900 mm |
f | 0.1091 in2.770 mm |
r | 0.0827 in2.100 mm |
r1 | 0.0197 in0.500 mm |
da min | 2.9921 in76.000 mm |
da max | 3.3858 in86.000 mm |
Da max | 5.0787 in129.000 mm |
ras max | 0.0787 in2.000 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.
What is the difference between deep groove and angular contact ball bearings?
Deep groove ball bearings are the most common type. They’re designed to handle mainly radial loads, but they can also take some axial load in both directions. They’re simple, versatile, and used in everything from motors to conveyors. Angular contact ball bearings are built for combined loads, especially where there’s significant axial force in one direction. They’re often used in pairs and are common in higher precision or higher load applications like pumps and gearboxes. If your load is mostly radial, go deep groove. If axial load matters more, angular contact is usually the better choice.
#317622
Brand
SKF Bearing
Model
313-ZNR
#5035692
Brand
NSK Bearings
Model
BL313ZNR
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