BC1B 327270 B SKF 60x110x40 mm Cylindrical Roller Bearing

Produkt description

BC1B 327270 B SKF is a special single-row cylindrical roller bearing measuring 60x110x40 mm, featuring an NJB design with an extended inner ring. It has C3 radial internal clearance, a machined brass cage and separable construction. SKF data specify a dynamic load rating Cr of 108 kN, static load rating C0r of 102 kN, reference speed of 6,300 r/min and limiting speed of 7,500 r/min. The NJB arrangement provides axial location in one direction while permitting axial displacement in the opposite direction.

BC1B 327270 B SKF 60x110x40 mm Cylindrical Roller Bearing

BC1B 327270 B SKF is a single-row cylindrical roller bearing measuring 60x110x40 mm, manufactured in the special NJB design with an extended inner ring.

The bearing has two integral flanges on the outer ring and one integral flange on the inner ring. The inner ring is extended on the side opposite its flange. This arrangement provides axial location in one direction while permitting axial displacement in the opposite direction.

Complete identification:

SKF -> BC1B 327270 B -> NJB -> 60x110x40 mm -> C3 -> single-row cylindrical roller bearing

BC1B 327270 B SKF - Characteristics

Manufacturer: SKF
Designation: BC1B 327270 B
Bearing Type: Single-row cylindrical roller bearing
Design: NJB
Dimensions: 60x110x40 mm
Bore Type: Cylindrical
Radial Internal Clearance: C3
Inner Ring: Extended on one side
Cage: Machined metal cage
Cage Material: Brass
Number of Rows: 1
Separable: Yes
Seals: None
Factory Lubrication: None
Mass: approximately 1.19 kg
EAN: 7316572385029

BC1B 327270 B SKF Dimensions

The principal dimensions are:

d - Bore Diameter: 60 mm
D - Outside Diameter: 110 mm
B - Overall Width: 40 mm
C - Outer Ring Width: 22 mm

Complete size: 60x110x40 mm

The difference between the 40 mm overall width and the 22 mm outer ring width is important. It results from the special construction with an extended inner ring.

BC1B 327270 B should therefore not be identified only from the standard d, D and B dimensions.

NJB Design with Extended Inner Ring

SKF identifies BC1B 327270 B as a:

Single-row cylindrical roller bearing with extended inner ring, NJB design

Its ring configuration includes:

2 integral flanges on the outer ring
1 integral flange on the inner ring
inner ring extended on one side

The extended inner ring is located on the side opposite the integral inner-ring flange.

This configuration is a fundamental feature of BC1B 327270 B and distinguishes it from standard cylindrical roller bearings with similar basic dimensions.

Axial Displacement in One Direction

The NJB flange arrangement provides two different axial functions.

In one direction, the bearing can locate the shaft axially through the interaction between the rollers and integral flanges.

In the opposite direction, the construction permits axial displacement of the shaft relative to the housing.

The extended inner ring increases the available axial displacement capability on the corresponding side.

This feature is particularly important when evaluating a technically suitable replacement.

Separable Bearing Design

BC1B 327270 B SKF has a separable construction.

The ring configuration of a cylindrical roller bearing allows bearing components to be separated during assembly.

This can simplify mounting and dismounting, particularly where interference fits are required on the shaft or in the housing.

A replacement bearing should therefore be compared not only by dimensions but also by its ring and flange configuration.

C3 Radial Internal Clearance

The specified radial internal clearance is:

C3

C3 indicates radial internal clearance greater than Normal.

For BC1B 327270 B, C3 is part of the specific bearing configuration and should be retained when selecting a replacement.

A dimensionally similar 60x110x40 mm bearing with Normal clearance should not automatically be considered equivalent.

Machined Brass Cage

BC1B 327270 B uses a:

Machined metal cage

The specified cage material is:

Brass

The cage specification is another relevant parameter when comparing this SKF bearing with possible alternatives.

A dimensionally identical bearing with a different cage design or material should not automatically be considered technically identical.

BC1B 327270 B SKF Load Ratings

SKF data specify:

Basic Dynamic Load Rating Cr: 108 kN
Basic Static Load Rating C0r: 102 kN

The cylindrical roller/raceway contact geometry provides a high radial load carrying capability relative to the bearing envelope.

Actual bearing selection should nevertheless consider the complete load spectrum, speed, lubrication, fits, temperature and required service life.

Reference and Limiting Speeds

The specified speed values are:

Reference Speed: 6,300 r/min
Limiting Speed: 7,500 r/min

These are catalogue speed values for the bearing.

The permissible operating speed in a specific installation can depend on factors including load, lubrication method, lubricant, operating temperature, shaft and housing fits and surrounding components.

BC1B 327270 B vs Standard 60x110x40 Bearings

The 60x110x40 mm dimensions alone are not sufficient to identify a technically equivalent replacement.

BC1B 327270 B has several specific characteristics:

• NJB design
• extended inner ring
• two integral outer-ring flanges
• one integral inner-ring flange
• axial displacement capability in one direction
• C3 radial internal clearance
• machined brass cage
• separable construction

For this reason, replacement selection should be based on the complete BC1B 327270 B specification, not only on bore, outside diameter and overall width.

Technical Specification

Manufacturer: SKF
Designation: BC1B 327270 B
Bearing Type: Single-row cylindrical roller bearing
SKF Design: NJB
d: 60 mm
D: 110 mm
B: 40 mm
C: 22 mm
Bore: Cylindrical
Radial Internal Clearance: C3
Cage: Machined
Cage Material: Brass
Outer Ring Integral Flanges: 2
Inner Ring Integral Flanges: 1
Inner Ring Extension: One side
Axial Displacement: One direction
Basic Dynamic Load Rating Cr: 108 kN
Basic Static Load Rating C0r: 102 kN
Reference Speed: 6,300 r/min
Limiting Speed: 7,500 r/min
Mass: approximately 1.19 kg
EAN: 7316572385029

FAQ

What are the dimensions of SKF BC1B 327270 B?

SKF BC1B 327270 B measures 60x110x40 mm, with a 60 mm bore, 110 mm outside diameter and 40 mm overall width.

What type of bearing is BC1B 327270 B?

It is a single-row cylindrical roller bearing with an extended inner ring, manufactured in the SKF NJB design.

What radial clearance does BC1B 327270 B have?

The bearing has C3 radial internal clearance, which is greater than Normal clearance.

What cage does SKF BC1B 327270 B use?

It uses a machined brass cage.

What are the load ratings of BC1B 327270 B?

The basic dynamic load rating Cr is 108 kN, while the basic static load rating C0r is 102 kN.

What are the speed ratings of BC1B 327270 B?

The reference speed is 6,300 r/min, and the limiting speed is 7,500 r/min.

Does BC1B 327270 B allow axial displacement?

Yes. The NJB configuration provides axial location in one direction and axial displacement in the opposite direction.

Can BC1B 327270 B be replaced by any 60x110x40 mm bearing?

No. The replacement should also match the NJB design, extended inner ring, flange arrangement, C3 clearance, cage specification and axial displacement characteristics.

AI OVERVIEW

BC1B 327270 B SKF is a single-row cylindrical roller bearing with an NJB design and extended inner ring, measuring 60x110x40 mm. It features C3 radial internal clearance, a machined brass cage and separable construction. SKF specifies dynamic load rating Cr of 108 kN, static rating C0r of 102 kN and limiting speed of 7,500 r/min.