MEC is capable of producing precision rolling elements involving close dimensional tolerances (Needle Rollers & Cylindrical Rollers) to cylindrical pins which can be used as Shaft / Axle in variety of applications.

DESIGN

MEC produces wide range of rolling elements according to DIN 5402 / ISO 3096 standard, in Bearing Steel (Grade SAE 52100 or equivalent), having hardness (670+170) HV or (58+7) HRC after heat treatment. Various ends configuration available are:-

MEC also manufactures Needles & Rollers with a special logarithmic profile, Type ZB featuring a cylindrical middle section and slightly chamfered stress relieving end zones for extended durability.

In addition to above mentioned specifications rolling elements with special tolerance limits (plus tolerances, hardness as low as 45 HRc etc) can be supplied on request.
In addition rollers can be provided with end drops (Type ZB) as a stress relieving feature thereby increasing life performance.
In addition rolling elements can be manufactured with different materials (Stainless Steel SS, Mild Steel MS) if the quantities required are sufficient for economical production.

Technical Data :-

Needle Rollers

MEC Needle Rollers are available in different designs as shown below:-

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BR / BP		Diameter: from 1.00 mm to 6.0 mm			Length: from 2.80 mm to 49.80 mm
GRADE	DIAMETER TOLERANCE (µm)	SORTING GROUPS (µm)	ROUNDNESS DEVIATION (µm)	SURFACE ROUGHNESS Ra (µm)	LENGTH (mm)		LENGTH TOLERANCE h13 (mm)
G2	+0 – 10	2	1.0	0.15	- 6 10 18 30	6 10 18 30 50	+ 0 – 0.180 + 0 – 0.220 + 0 – 0.270 + 0 – 0.330 + 0 – 0.390
G5	+0 – 10	5	2.5	0.20

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Cylindrical Rollers

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BPM		Diameter: from 3.00 mm to 10.0 mm			Length: from 3.00 mm to 25.0 mm
GRADE	DIAMETER TOLERANCE (µm)	SORTING GROUPS (µm)	ROUNDNESS DEVIATION (µm)	ROUGHNESS (µm)		ENDS RUNOUT (µm)	LENGTH TOLERANCE (mm)
				SURFACE	ENDS
G2	+0 – 10	2	1.0	0.15	0.30	0.010	+0.000-0.050 mm
G5	+0 – 10	5	1.5	0.20		0.020	+0.000-0.100 mm

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Cylindrical Pins

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Diameter: from 2.00 mm to 10.0 mm
Length: from 6.00 mm to 100.0 mm

The cylindrical pins are manufactured as per customer specifications and do not follow any standard dimensional tolerances.

In addition to above mentioned specifications rolling elements with special tolerance limits (plus tolerances, hardness as low as 45 HRc etc) can be supplied on request.
In addition rollers can be provided with end drops (Type ZB) as a stress relieving feature thereby increasing life performance.
In addition rolling elements can be manufactured with different materials (Stainless Steel SS, Mild Steel MS) if the quantities required are sufficient for economical production.

Yes! I am interested

Non-standard : Needle, Rollers & Pins can also be produced in other materials (Stainless Steel & Carbon Steel) and with coatings (Black Oxide & Zinc), if quantities required are sufficient for economical Productions.