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BL210NR

Image for Illustration purposes only. Actual product may vary

The NTN BL210NR is a single-row deep groove ball bearing with a 50 mm straight bore. It features an open enclosure, a steel cage, and a snap ring groove for axial location. Constructed from high carbon chrome steel, this bearing is suitable for general industrial rotating equipment.

MODEL BL210NR

BRAND

SKU

276387

WEIGHT

1.153 lb

UOM

each

$94.00 Each

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Bearing Modification Services

Typically Ships in: 1 day

Returnable:No

a (in)

0.1291

B (in)

0.7874

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)

3.5433

d (in)

1.9685

D1

3.4169 in

D2

3.7992 in

Da max

2.3622 in

da max

2.3622 in

da min

2.2244 in

Dynamic Load Rating

10300 lbf

Dynamic load rating

10300 lbf

Enclosure

Open

f (in)

0.0969

I.D.

50 mm

Limiting Speed - Grease

6400 RPM

Limiting speed - grease

6400 RPM

Limiting Speed - Oil

7500 RPM

Limiting speed - oil

7500 RPM

Material

High carbon chrome steel

O.D.

90 mm

Operating Temperature Range

-40 to 250 °F

Operating temperature range

-40 to 250 ºF

Precision

ISO class 0

r (in)

0.0433

r1

0.0197 in

Radial Internal Clearance

CN

Radial internal clearance

CN

ras max

0.0394 in

Static Load Rating

7850 lbf

Static load rating

7850 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 7500 RPM
Limiting Speed - Grease 6400 RPM
Precision ISO Class 0
Configuration One
Radial Internal Clearance CN
Enclosure Open
Operating Temperature Range -40 to 250 F-40 to 120 C
Dimensional Specifications


Single Row Radial Ball Bearing - Open Type w/ Snap Ring, Series BL - Dimensions

d 1.9685 in50.000 mm
D 3.5433 in90.000 mm
B 0.7874 in20.000 mm
D1 3.4169 in86.790 mm
D2 3.7992 in96.500 mm
a 0.1291 in3.280 mm
f 0.0969 in2.460 mm
r 0.0433 in1.100 mm
r1 0.0197 in0.500 mm
da min 2.2244 in56.500 mm
da max 2.3622 in60.000 mm
Da max 2.3622 in60.000 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.

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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