We never sell your data to third parties
Image for Illustration purposes only. Actual product may vary
NTN BL312NR is a single-row deep groove ball bearing with a 60 mm straight bore. It features an open enclosure, steel cage, and snap ring groove for axial location. Constructed from high carbon chrome steel, it is suitable for general industrial rotating equipment.
MODEL BL312NR
$201.01 Each
Prices are subject to change
FREE SHIPPING ON ORDERS OVER $100
Select Quantity
Typically Ships in: 1 day
Returnable:No
a (in)
0.1598
B (in)
1.2205
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)
5.1181
d (in)
2.3622
D1
4.9299 in
D2
5.5000 in
Da max
3.1693 in
da max
3.1693 in
da min
2.7953 in
Dynamic Load Rating
24100 lbf
Dynamic load rating
24100 lbf
Enclosure
Open
f (in)
0.1110
Height
5.5
I.D.
60 mm
Length
5.5
Limiting Speed - Grease
4800 RPM
Limiting speed - grease
4800 RPM
Limiting Speed - Oil
5700 RPM
Limiting speed - oil
5700 RPM
Material
High carbon chrome steel
O.D.
130 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
Static Load Rating
17600 lbf
Static load rating
17600 lbf
Style
Maximum Capacity
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 | 5700 RPM |
Limiting Speed - Grease | 4800 RPM |
Precision | ISO Class 0 |
Configuration | One |
Radial Internal Clearance | CN |
Enclosure | Open |
| 3.792 lb1.720 kg | |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 2.3622 in60.000 mm |
D | 5.1181 in130.000 mm |
B | 1.2205 in31.000 mm |
D1 | 4.9299 in125.220 mm |
D2 | 5.5000 in139.700 mm |
a | 0.1598 in4.060 mm |
f | 0.1110 in2.820 mm |
r | 0.0827 in2.100 mm |
r1 | 0.0197 in0.500 mm |
da min | 2.7953 in71.000 mm |
da max | 3.1693 in80.500 mm |
Da max | 3.1693 in80.500 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.
#317695
Brand
SKF Bearing
Model
312 NR
#5035685
Brand
NSK Bearings
Model
BL312NR
| Brand | Wiegmann |
| Model | HW-FGHP-200-275 |
| Brand | Winsmith |
| Model | E17CDTDN1000N4 |
