GV3 Linear Guidance - BISHOP WISECARVER - (Version JPG) - Page n° 39 - PDF Catalogue | Technical Documentation

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Electric actuator, Linear unit, Telescopic slide, Guide roller, Housing

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Motion Without Limits

Narrow Track Rollers

The range of narrow track rollers complements the other ranges of bearings in the GV3 program. They are available mounted on both concentric and eccentric through hole fixing studs, but there is no blind hole version.

Narrow track rollers can be used in conjunction with flat tracks, single edge spacer slides and almost any type of running surface. Each uses a high capacity single row deep groove ball bearing with a substantial and stiff outer ring and a crowned outer profile. Their design makes them particularly suited to use as a retaining roller on the rear face of single edged spacer slides, and their low cost makes them suitable for any application where the high load capacity of the wide track rollers is not needed.

All track rollers are available with the Nitrile Seal (NS) option which provides a higher degree of sealing against ingress of water and debris than does the default metal shielded type. A small increase in friction may result.

See Application Examples on page 13

Eccentric (E) Concentric (C)

₀.1

L*3

E-

radius D

Socket Tool

(For part no. and tightening torques see page 49)

Adjusting Wrench

(For part no. and tightening torques see page 49)

GH J K

E r


LRN 18...	FT 24 12	18	11.5	8	14	10	2.5	500		M6 x 0.75	LO	1	0.8	3.2
LRN 25...	FT 32 16	25	14.5	10	19	13	5	500	10	M8 x 1	7 115
LRN 34...~f	FT 40 20	34	18.2	12.5	22	14.8	6	500	12	M10 x 1.25	⁹	1.2	1.25	6
LRN 54...	FT 66 33	54	29.5	21	30	20.4	8	500	23.5	M14 x 1.5	14	1.4	1.6	8


_L*₃	M	M1	N	+0 -0.03		Weight	Max Working Load Capacity	Roller Static and Dynamic 1 *Radial Load Capacities (N)⁴** 1		Part	Options Available
LJ				O*1	□	~g	Max Working Load Capacity	Co 1	C 1	Number	Metal Shields (-) Nitrile Seals (NS)
2.5	10	13	0.7	6	11	16	400	593_r	1438_\	LRN 18...	xV
³	13	17	0.75	8		40	1000	1333	3227	LRN 25...	VV
4	17	21	1	10	15	85	2000	2600	5921	LRN 34...	VV
6	22	28	1.5	14	27	310	5000	6657	13595	LRN 54...	VV

Ordering Details

LRN25 C (NS)^

Part Number-

LRN Indicates a Narrow track roller 25 denotes roller diameter in mm

- Nitrile Sealed bearings

Leave blank if metal shields are required C = Concentric (fixed) or E = Eccentric (adjustable)

*Notes:

1. It is recommended that holes to suit track roller mounting studs should be reamed to tolerance F6 for a sliding fit.

2. Nuts are chemically blackened on the concentric version and bright zinc plated on the eccentrics for identification purposes.

3. All eccentric narrow track roller fixing studs are supplied with sockets for adjustment as shown.

4. The quoted static and dynamic load capacities are based on industry standard calculations. These do not accurately reflect system performance, and are only provided for comparison with other systems.

5. Each size of narrow track roller has been designed for use with a specific size of flat track, as shown in the table. However, any track roller may be used in conjunction with any size of flat track, single edged slide or other running surface according to practicality of design.

GV3 Linear Guidance - BISHOP WISECARVER - #39

Electric actuator, Linear unit, Telescopic slide, Guide roller, Housing