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NTN 5S-2LA-BNS012LLB BNS ULTAGE series angular contact ball bearing with a straight bore. Double sealed enclosures and a phenolic resin cage support high-speed precision spindle and machine tool applications. Constructed from high carbon chrome steel.
MODEL 5S-2LA-BNS012LLB
$1,569.96 Each
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a (in)
0.9134
B (in)
0.7087
Bore type
Round
Bore Type
Round
Cage material
Phenolic resin
Cage Material
Phenolic Resin
Cage type
Machined
Cage Type
Machined
Configuration
One
Contact angle
20 º
D (in)
3.7402
d (in)
2.3622
D1
3.2874 in
d1
2.7598 in
d2
2.7244 in
Da max
3.4646 in
da min
2.6378 in
db min
2.5394 in
Dynamic load rating
3950 lbf
Dynamic Load Rating
3950 lbf
Enclosure
Double Sealed
I.D.
60 mm
Limiting speed - grease
22200 RPM
Limiting Speed - Grease
22200 RPM
Material
High Carbon Chrome Steel
O.D.
95 mm
Operating temperature range
-40 to 250 ºF
Operating Temperature Range
-40 to 250 °F
Precision rating
ISO class 4
Precision Rating
ISO Class 4
r (in)
0.0433
r1
0.0236 in
r1as max
0.0236 in
ras max
0.0394 in
Seal material
Nitrile rubber
Seal Material
Nitrile Rubber
Seal type
Non-Contact
Seal Type
Non-Contact
Static load rating
2290 lbf
Static Load Rating
2290 lbf
Type
Angular Ball Bearing
Width
72 mm
Technical Specifications
Type | Angular Ball Bearing |
|---|---|
Bore Type | Round |
Material | High Carbon Chrome Steel |
Cage Type | Machined |
Cage Material | Phenolic Resin |
Limiting Speed - Grease | 22200 RPM |
Seal Type | Non-Contact |
Seal Material | Nitrile Rubber |
Precision Rating | ISO Class 4 |
Configuration | One |
Static Load Rating | 2290 lbf10200 N10.20 kN |
Dynamic Load Rating | 3950 lbf17600 N17.60 kN |
Enclosure | Double Sealed |
Weight | 3.880 lb1.760 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
|
| |
d | 2.3622 in60.000 mm |
|---|---|
D | 3.7402 in95.000 mm |
B | 0.7087 in18.000 mm |
d1 | 2.7598 in70.100 mm |
d2 | 2.7244 in69.200 mm |
D1 | 3.2874 in83.500 mm |
r | 0.0433 in1.100 mm |
r1 | 0.0236 in0.600 mm |
Contact Angle | 20 |
a | 0.9134 in23.200 mm |
da min | 2.6378 in67.000 mm |
db min | 2.5394 in64.500 mm |
Da max | 3.4646 in88.000 mm |
ras max | 0.0394 in1.000 mm |
r1as max | 0.0236 in0.600 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.
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