LR5000 single-row track roller bearings with a thick outer ring

LR5000 TRACK ROLLERS

LR5000 Track Roller Bearings: Size Chart

LR5000 rollers are single-row deep groove ball bearings with an outer ring thicker than a 6000 bearing. The outer ring runs directly on a flat track, guide plate or cam. This page lists LR5000 to LR5007, 10 to 35 mm bore.

Typical applications: flat-track and cam roller linear guides, guide and idler wheels, woodworking and metal processing machines, packaging and handling machines, conveyors, and door and gate tracks.

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16 LR5000 models8 size rows

How LR roller numbers are built

Number or suffix	Meaning	Example
LR50xx	Single row deep groove roller, outer ring thicker than a 60xx bearing	LR5004NPPU = 20 × 47 × 16
Last two digits	Same bore code as standard bearings: 04 = 20 mm	LR5204 → 20 mm bore
NPPU / KDDU / KDD	NPPU = rubber seals, crowned outer ring. KDDU = metal shields, crowned outer ring. KDD = metal shields, cylindrical outer ring. U marks the crowned outer ring.	LR5204NPPU, LR5204KDDU, LR5204KDD

LR5000 roller size chart

Each row is one size. Seal and shield versions of the same size are listed together and link to their model pages. Dimensions are in millimetres.

LR5000 series (single row)

d	D	B	Models
10	28	12	LR5000 LR5000NPPU
12	30	12	LR5001 LR5001NPPU
15	35	13	LR5002 LR5002NPPU
17	40	14	LR5003 LR5003NPPU
20	47	16	LR5004 LR5004NPPU
25	52	16	LR5005 LR5005NPPU
30	62	19	LR5006 LR5006NPPU
35	68	20	LR5007 LR5007NPPU

Dimensions are the same as on each model page. Profile drawings and load ratings are on the model pages.

Selection checks for track rollers

A crowned outer ring tolerates small misalignment and avoids edge loading. A cylindrical ring spreads the load over a wider line on a well-aligned track.
The track must be hard enough for the contact load. A soft track wears or dents before the roller.
Use an eccentric stud or adjustable mounting to set clearance against the track.
Choose seals for dust and coolant, shields for lower friction in clean places.

Custom track rollers

We make track rollers to drawing: special grooves, extended inner rings, non-standard widths, eccentric versions and polyurethane-covered rollers. Send the rail profile, shaft or stud size, load, speed and quantity, or an old sample.

Frequently asked questions

What is the difference between LR5004 and LR5204?

Both have a 20 mm bore. LR5004 is a single-row roller, 20 × 47 × 16 mm. LR5204 is a double-row roller, 20 × 52 × 20.6 mm, and carries more load and axial force.

Why does a track roller have a thick outer ring?

The outer ring runs on the track as a wheel. A thick ring does not bend under the concentrated contact load, so the internal ball raceway stays round.

LR5200 double-row track rollers →LR5300 double-row track rollers →LR5000, LR5200, LR5300 size chart in one table →Choose a track roller by rail profile →Custom rollers: polyurethane and eccentric →SG, LFR, LV, VW size chart →Double row 3200 / 5200 size chart →All track roller bearings →