LR Track Roller Bearings Size Chart: LR5000, LR5200, LR5300

LR rollers next to the bearings they are built on

At a 20 mm bore each LR roller keeps the bore of a standard bearing and has a thicker outer ring. LR52 and LR53 rollers also keep the width of the double-row 5204 and 5304. The section height is (D − d) / 2.

Model	Series	d	D	B	Section height
6004	6004	20	42	12	11
LR5004NPPU	LR5004	20	47	16	13.5
5204	5204	20	47	20.6	13.5
LR5204NPPU	LR5204	20	52	20.6	16
5304	5304	20	52	22.2	16
LR5304NPPU	LR5304	20	62	22.2	21

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
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
LR5-4, LR6-6, LR8-6 …	Small LR rollers. H gives the overall width in mm.	LR6-6-H19.4 = 12.3 × 24 × 19.4

LR and custom roller size charts

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 LR5200 series LR5300 series Small LR rollers Other and custom rollers

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

LR5200 series (double row)

d	D	B	Models
10	32	14	LR5200KDD LR5200KDDU LR5200NPPU
12	35	15.9	LR5201KDD LR5201KDDU LR5201NPPU
15	40	15.9	LR5202KDD LR5202KDDU LR5202NPPU
17	47	17.5	LR5203KDD LR5203KDDU LR5203NPPU
20	52	20.6	LR5204KDD LR5204KDDU LR5204NPPU
25	62	20.6	LR5205KDD LR5205KDDU LR5205NPPU
30	72	23.8	LR5206KDD LR5206KDDU LR5206NPPU
35	80	27	LR5207KDD LR5207KDDU LR5207NPPU
40	85	30.2	LR5208KDD LR5208KDDU LR5208NPPU

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

Small LR rollers

d	D	B	Models
8.6	16	14.8	LR5-4
9	17	17	LR5-6-H17
10.2	21	19.5	LR6-6-H19.5
10.2	22	18	TR6-6-H18
10.6	20	20	LR6-6
12.3	24	15	LR8-6-H15
12.3	24	19.4	LR6-6-H19.4
12.3	24	20	LR8-6-H20
12.3	24	24.5	LR6-6-H24.5
12.3	24	25.2	LR8-6-H25.2
12.3	24	26	LR8-8E

Other and custom rollers

d	D	B	Models
4	8	5	MRD84
4	9	6	D684
4	9	12	693/d4-h6
4	9	14	693/d4-h8
4	10	14	D623-d4
4	11	7	D694
4	13	10.3	B13-4-10.3
4.5	13	17	694-d4.5
5	10	13.5	623-d5
5	11	8	D685
5	12	13.5	694/5-d12
5	13	13.8	B13-6.5-13.8
5	13	14	694/d5-h8
5	13	17	694-d5
5	13	24.2	B13-10-24.2
5.3	10	13.5	623-d5.3
5.3	10	17	623-d5.3-h17/6
5.3	13	17	694-d5.3
6	13	7.3	D136
6	17	9	D606
7.94	21	15	699/15-M4-D7.94
8	12	12	8X12X12
8	12	14	8X12X14
8	12	16	8X12X16
8	13	10	D138
8	14	8	D148-H8
8	14	12	D148-H12
8	16	16.2	B16-8-16.2
8	16	22.5	B16-16-22.5
8	16	26.5	B16-12-26.5
8	16	27.1	B16-12-27.1
8	16	29.1	B16-12-29.1
8	20	12	DX606
8	21	15	699/15-M4-D8
8	21	17.5	699/8
8	28	17.5	D288
8.1	13.2	7	RCV18G
10	19	8	D6800
10.8	20	9	RCV28
12	18	8	D6701 DMF84
12	21	13.5	D6801
12	28	14	D6001
12	28	16	6902/12
12	28	17.5	D288-12
15	24	8	D6802
15	28	17.5	D288-15
15	30	18	6903/15
15	32	19	6804/15
15	35	19	60/15 6003/15
17	28	17.5	D288-17
17	35	19	6003/17
18	37	18	60/18 6904/18
18	42	12	6004/18
18	47	23	6005/18
19	37	18	6904/15
19	47	23	6005/19
20	35	19	6003/20
20	37	18	6904/20
20	47	23	6005/20
22	42	23	6004/22
22	47	23	6005/22
25	52	27	60/25

Dimensions are the same as on each model page. The custom rollers were made to customer drawings; we can make the same or a modified size again.

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

Many rollers in the last table were made to drawing. We change the outer diameter, width, profile (crowned, cylindrical, grooved), bore and seals, and can add a polyurethane tyre. Send a drawing or the d, D, B, profile, load and quantity.

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.

Can you make a roller to our drawing?

Yes. The last table on this page lists rollers we have already made to customer drawings. Send your drawing for a feasibility check.

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 →

LR Track Roller Bearings: LR5000, LR5200, LR5300 Size Chart