LR5300 double-row track roller bearings with a thick outer ring

LR5300 TRACK ROLLERS

LR5300 Track Roller Bearings: Size Chart

LR5300 rollers are double-row angular contact track rollers based on 5300 sizes. At the same bore they have a larger outer diameter and width than LR5200 rollers. This page lists LR5301 to LR5308, 12 to 40 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 LR5300 models8 size rows

How LR roller numbers are built

Number or suffix	Meaning	Example
LR52xx / LR53xx	Double row angular contact rollers based on 52xx / 53xx sizes	LR5204NPPU = 20 × 52 × 20.6
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

LR5300 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.

LR5300 series (double row)

d	D	B	Models
12	42	19	LR5301NPPU
15	47	19	LR5302NPPU
17	52	22.2	LR5303NPPU
20	62	22.2	LR5304KDD LR5304KDDU LR5304NPPU
25	72	25.4	LR5305KDD LR5305KDDU LR5305NPPU
30	80	30.2	LR5306NPPU
35	90	34.9	LR5307KDD LR5307KDDU LR5307NPPU
40	100	36.5	LR5308KDD LR5308KDDU LR5308NPPU

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

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 →LR5000 single-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 →