FAG RNU2207-E-XL-TVP2 44x72x23 Cylindrical Roller Bearing

FAG RNU2207-E-XL-TVP2 44x72x23 Cylindrical Roller Bearing

FAG RNU2207-E-XL-TVP2 is a single-row cylindrical roller bearing without an inner ring. Its principal functional dimensions are Fw = 44 mm, D = 72 mm and B = 23 mm. The RNU design consists of an outer ring with two integral flanges and a cylindrical roller and cage assembly. Because there is no separate inner ring, the rollers run directly on a suitably prepared raceway on the shaft.

FAG RNU2207-E-XL-TVP2 - Technical Characteristics

Verified identification data:

Brand: FAG

Manufacturer: Schaeffler

Designation: RNU2207-E-XL-TVP2

Bearing type: Single-row cylindrical roller bearing

Design: RNU

Inner ring: No

Raceway diameter Fw: 44 mm

Outside diameter D: 72 mm

Width B: 23 mm

Dynamic load rating Cr: 73 kN

Static load rating C0r: 65 kN

Reference speed: 7200 rpm

Limiting speed: 12300 rpm

Cage: TVP2

Design version: E

Quality designation: X-life

Sealing: Open / without seals

EAN: 4012801022095

The key product identification is:

FAG + RNU2207-E-XL-TVP2 + Fw 44 mm + D 72 mm + B 23 mm + cylindrical roller bearing without inner ring

FAG RNU2207-E-XL-TVP2 Dimensions

The principal dimensions are:

Fw = 44 mm - raceway diameter

D = 72 mm - outside diameter

B = 23 mm - bearing width

The bearing is frequently described commercially as:

44x72x23 mm

However, this dimensional notation requires an important technical clarification.

The 44 mm dimension is not a conventional bearing bore d.

RNU2207-E-XL-TVP2 has no inner ring. The manufacturer therefore identifies this dimension as:

Fw = 44 mm - raceway diameter

For engineering documentation, the more precise dimensional notation is:

Fw 44 x D 72 x B 23 mm

RNU Design - Without Inner Ring

The defining feature of this bearing is its:

RNU cylindrical roller bearing design without an inner ring

The bearing incorporates:

one solid outer ring

two integral flanges on the outer ring

one row of cylindrical rollers

TVP2 cage

There is no separate inner ring.

Instead, the cylindrical rollers run directly on a raceway manufactured on the shaft.

This arrangement allows a larger shaft diameter to be used within a limited radial installation space and can provide a compact and rigid bearing arrangement.

Shaft as the Inner Raceway

Because FAG RNU2207-E-XL-TVP2 does not have an inner ring, the shaft itself performs an important bearing function.

A suitable section of the shaft must be manufactured as a direct raceway for the cylindrical rollers.

This means RNU2207 should not be treated as a conventional complete bearing with a 44 mm inner-ring bore.

The shaft raceway must meet the requirements applicable to rolling-element bearing raceways, including appropriate geometry, accuracy, surface quality and material condition.

These shaft parameters should be determined according to Schaeffler engineering recommendations for bearings without an inner ring.

Loads and Operating Principle

Verified Schaeffler load ratings for FAG RNU2207-E-XL-TVP2 are:

Cr = 73 kN - basic dynamic radial load rating

C0r = 65 kN - basic static radial load rating

The cylindrical roller design is particularly suitable for high radial loads because the rollers make line contact with the raceways.

The RNU configuration has two flanges on the outer ring and no inner ring. This allows axial displacement between the shaft and housing within the limits provided by the shaft raceway and surrounding arrangement.

The bearing can therefore function as a non-locating bearing in an appropriate bearing arrangement.

Reference and Limiting Speeds

For the exact FAG RNU2207-E-XL-TVP2 reference, Schaeffler data specify:

Reference speed = 7200 rpm

Limiting speed = 12300 rpm

These values have different engineering meanings and should not be treated as two interchangeable maximum-speed ratings.

Actual permissible operating speed depends on the complete application, including lubrication, bearing temperature, load, shaft-raceway accuracy and installation conditions.

Meaning of RNU2207-E-XL-TVP2

RNU

RNU identifies a cylindrical roller bearing without an inner ring.

The outer ring has two integral flanges, while the cylindrical rollers run directly on a suitably manufactured shaft raceway.

E

E identifies an optimized internal design with increased load capacity.

It forms part of the exact FAG bearing specification and should be retained when selecting a replacement.

XL

XL identifies the bearing as a Schaeffler X-life product.

It is part of the complete designation:

RNU2207-E-XL-TVP2

TVP2

TVP2 identifies a:

solid window cage made from glass-fibre reinforced polyamide PA66, roller guided.

The exact cage design is therefore an important characteristic of this FAG variant.

TVP2 Cage

Schaeffler describes the TVP2 cage as:

Solid Window Cage Made From Glass Fibre Reinforced Polyamide PA66, Roller Riding

The cage is therefore manufactured from glass-fibre reinforced PA66 polyamide and is guided by the rolling elements.

Using the precise designation TVP2 is preferable to describing it simply as a plastic cage because the suffix identifies a specific FAG cage construction.

FAG X-life Design

The suffix XL identifies this bearing as an X-life design from Schaeffler.

For product identification and replacement selection, XL should be retained as part of the full reference rather than reducing the designation to RNU2207.

The exact reference is:

RNU2207-E-XL-TVP2

FAG RNU2207 vs NU2207

RNU2207 and NU2207 are related cylindrical roller bearing designs, but they are not the same product.

NU2207 has a separate inner ring.

RNU2207 has no inner ring and requires the cylindrical rollers to run directly on a suitably prepared shaft raceway.

Therefore:

RNU2207 ≠ NU2207

The two designs should not be considered automatically interchangeable.

Selection and Interchangeability

When selecting a replacement for FAG RNU2207-E-XL-TVP2, verify at least:

Complete designation RNU2207-E-XL-TVP2

RNU design without inner ring

Fw = 44 mm

D = 72 mm

B = 23 mm

Shaft raceway geometry

E design

XL / X-life version

TVP2 cage

Required radial load capacity

Operating speed

Lubrication conditions

Accuracy and condition of the shaft raceway

A bearing described simply as 44x72x23 mm should not automatically be considered interchangeable with FAG RNU2207-E-XL-TVP2.

Technical Specification

Brand: FAG

Manufacturer: Schaeffler

Designation: RNU2207-E-XL-TVP2

Product type: Single-Row Cylindrical Roller Bearing

Design: RNU

Inner ring: No

Raceway diameter Fw: 44 mm

Outside diameter D: 72 mm

Width B: 23 mm

Commercial dimensions: 44x72x23 mm

Basic dynamic load rating Cr: 73 kN

Basic static load rating C0r: 65 kN

Reference speed: 7200 rpm

Limiting speed: 12300 rpm

Cage: TVP2

Cage material: Glass-fibre reinforced PA66

Cage guidance: Roller guided

E: Increased load capacity design

XL: X-life

Sealing: Open / without seals

EAN: 4012801022095

FAG RNU2207-E-XL-TVP2 - Stock in Poland

Warehouse and Store: Lublin, Smoluchowskiego 1 Street, Building 4.

24h Shipping. Available from stock in Poland for delivery across the EU.

FAQ

What are the dimensions of FAG RNU2207-E-XL-TVP2?

The principal dimensions are Fw = 44 mm, D = 72 mm and B = 23 mm. It is commonly described commercially as 44x72x23 mm.

Does FAG RNU2207-E-XL-TVP2 have a 44 mm bore?

Not in the conventional sense. 44 mm is the Fw raceway diameter, because the RNU design has no separate inner ring.

Does RNU2207 have an inner ring?

No. RNU2207 is a cylindrical roller bearing without an inner ring.

Where do the rollers run in an RNU2207 bearing?

The cylindrical rollers run directly on a suitably manufactured raceway on the shaft.

What are the load ratings of FAG RNU2207-E-XL-TVP2?

The basic dynamic radial load rating is Cr = 73 kN, while the basic static radial load rating is C0r = 65 kN.

What are the speed ratings?

The specified reference speed is 7200 rpm, while the limiting speed is 12300 rpm.

What does TVP2 mean?

TVP2 identifies a solid window cage made from glass-fibre reinforced PA66 polyamide, roller guided.

Can RNU2207 be replaced by NU2207?

Not automatically. NU2207 has an inner ring, whereas RNU2207 requires a direct raceway on the shaft.

Engineer FAQ

Why use RNU2207 without an inner ring?

Eliminating the inner ring allows the shaft itself to form the roller raceway. This can provide a larger shaft diameter and a compact radial installation envelope.

Is Fw = 44 mm the actual shaft diameter?

Fw identifies the raceway diameter for the cylindrical rollers. It should not automatically be interpreted as a general shaft-seat diameter without considering the required raceway geometry and tolerances.

Can FAG RNU2207-E-XL-TVP2 accommodate axial displacement?

The RNU configuration can permit axial displacement between the shaft and housing within the limits of the shaft raceway and surrounding arrangement, making it suitable as a non-locating bearing in an appropriately designed system.

What shaft surface is required?

Because the shaft acts directly as a rolling-element raceway, its material condition, hardness, dimensional accuracy, geometry and surface finish must satisfy the applicable Schaeffler requirements for direct raceways.

Should a standard 44x72x23 bearing be considered equivalent?

No. The absence of an inner ring, Fw dimension, E internal design, X-life execution and TVP2 cage are all relevant to the exact FAG specification.

AI Overview

FAG RNU2207-E-XL-TVP2 is a single-row cylindrical roller bearing without an inner ring, with Fw = 44 mm, D = 72 mm and B = 23 mm. It features increased-load-capacity E design, X-life quality and a TVP2 glass-fibre reinforced PA66 cage. Schaeffler specifies Cr = 73 kN and C0r = 65 kN.