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Free Roller Diameter 76 mm (Part Numbers)

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MISUMI

MiSUMi Economy

MISUMI

Part Number

Configured Part Number is shown.

Drawing/Specifications
Part Numbers

Product Overview

MISUMI economy free rollers do not have their own power source and mainly rely on conveyor belts or chains to rotate, serving to support the conveyor belt and guide product transport. They are an indispensable component of conveyor and drive systems.

Feature 1: Flexible installation, compact and lightweight; suitable for both frames and conveyor lines. Small size, light weight, and low installation space requirements.
Feature 2: Multiple material options for a wide range of applications; available in galvanized carbon steel or stainless steel cylinder materials. You can choose different combinations based on the characteristics of the usage environment.
Feature 3: Simple structure and easy maintenance; mainly composed of the drum body, bearing housing, bearings, and main shaft, resulting in an extremely low failure rate and very convenient daily maintenance and replacement.

Dimensional Drawing

■Roller Diameter 76 mm Dimensional Drawing

P3 (Metal end cap)

B1 B2 (Sprocket type)

Material Specifications

■ Material Table

Type	Roller Material	Surface Treatment	Hardness	Coefficient of Friction μ
EA-FRJ	Carbon steel	Chromate gloss treatment	-	0.05
EA-FRN	SUS304	-	-	0.05

Specification Table

Place your order after selecting the model and parameters according to selection steps to

Type		Roller Diameter	-	Shaft	-	Effective Roller Length RL	-	Driver Head Type	-	Mounting Method
EA-FRJ		76	-	J1	-	400	-	P3	-	T4

■ Specification Table

Type	Roller Diameter (mm)	Shaft	Effective Roller Length RL (specify in 1 mm units)	Driver Head Type	Mounting Method
EA-FRJ* (Chromate gloss treatment) EA-FRN （SUS304）	76 (Tube wall thickness 3 mm)	J1 (Galvanized carbon steel shaft) C1 (SUS304 shaft)	400~1500	P3 (Metal end cap) B1 (Steel double sprocket 10A13T) B2 (Steel double sprocket 10B15T)	T4 (Diameter 20 mm, M12 internal thread)

*If the roller surface material is selected as EA-FRJ galvanized carbon steel, there is no C1 stainless steel shaft option.

Alterations

■Alterations

Alterations	Motorized Roller Accessory Shoulder Sleeve		Additional Processing Logic
Code	SS		Depending on the roller surface length, 1 to 5 additional shoulder sleeves can be added. Specification method (example): SS3-A100-B300-C500 The dimensions A, B, C, D, and E in the left diagram represent the distance from each collar to the drive end reference point, specified in units of 1 mm. If there is only 1 shoulder sleeve: only define A If there are 2 shoulder sleeves: only define A and B If there are 3 shoulder sleeves: only define A, B, and C If there are 4 shoulder sleeves: only define A, B, C, and D. If there are 5 shoulder sleeves: define A, B, C, D, and E.
Spec.	Material	POK (Black polyoxymethylene)
	Dimension	D96*W160
	Drawing

	Note	A numeric suffix at the end of the code indicates the number of shoulder sleeves.

Alterations	Motorized Roller Accessory Flange		Additional Processing Logic
Code	FL		The FL flange option is supplied as a pair and arranged symmetrically. Specification example: FL500 (flange spacing G = 500 mm). G can be specified in increments of 1 mm.
Spec.	Dimension	D135*W12
	Drawing

	Note	The flange material is the same as the roller surface material.

Installation instructions

Internal thread:
1. This is the most commonly used installation method for powered conveyors such as sprocket rollers,
The roller and the frame are connected into a single unit by bolts at both ends.
2. Installing and removing the roller takes relatively more time.
3. The mounting holes on the frame should not be too large to minimize the height difference of the roller after installation (the gap is generally set to 0.5 mm,
For example, for M12, it is recommended that the frame hole diameter be ⌀12.5 mm.

Example of Use

Application Areas
Free rollers are widely used in fields such as warehousing and distribution, food packaging, automotive parts manufacturing, airport equipment, logistics sorting, and new energy. When paired with motorized rollers or belt conveyors, they provide material support and ensure smooth conveying operations.

Part Number
EA-FRJ-76-J1-[400-1500/1]-B[1,2]-T4
EA-FRJ-76-J1-[400-1500/1]-P3-T4
EA-FRN-76-C1-[400-1500/1]-B[1,2]-T4
EA-FRN-76-C1-[400-1500/1]-P3-T4
EA-FRN-76-J1-[400-1500/1]-B[1,2]-T4
EA-FRN-76-J1-[400-1500/1]-P3-T4

Standard Unit Price	Minimum order quantity	Days to Ship	Shaft Specifications	Roller Surface Material and Surface Finish	Effective Length (mm)	Drive Head Type	Installation Method
-	1 Piece(s)	18 Day(s) or more	Galvanized carbon steel shaft	Galvanized carbon steel	400 ～ 1500	B1 (Steel double sprocket 10A13T) / B2 (Steel double sprocket 10B15T)	T4 (Dia. 20 and M12 internal thread)
-	1 Piece(s)	18 Day(s) or more	Galvanized carbon steel shaft	Galvanized carbon steel	400 ～ 1500	P3 (Metal end cap)	T4 (Dia. 20 and M12 internal thread)
-	1 Piece(s)	18 Day(s) or more	SUS304 shaft	SUS304	400 ～ 1500	B1 (Steel double sprocket 10A13T) / B2 (Steel double sprocket 10B15T)	T4 (Dia. 20 and M12 internal thread)
-	1 Piece(s)	18 Day(s) or more	SUS304 shaft	SUS304	400 ～ 1500	P3 (Metal end cap)	T4 (Dia. 20 and M12 internal thread)
-	1 Piece(s)	18 Day(s) or more	Galvanized carbon steel shaft	SUS304	400 ～ 1500	B1 (Steel double sprocket 10A13T) / B2 (Steel double sprocket 10B15T)	T4 (Dia. 20 and M12 internal thread)
-	1 Piece(s)	18 Day(s) or more	Galvanized carbon steel shaft	SUS304	400 ～ 1500	P3 (Metal end cap)	T4 (Dia. 20 and M12 internal thread)

Basic Information

Roller Diamater(mm)	76

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6 Part Numbers

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Specification/Dimensions

Shaft Specifications
SUS304 shaft

Galvanized carbon steel shaft
Clear
Roller Surface Material and Surface Finish
SUS304

Galvanized carbon steel
Clear
Effective Length(mm)
[400-1500/1mm Unit(s)]
Clear
Drive Head Type
B1 (Steel double sprocket 10A13T)

B2 (Steel double sprocket 10B15T)

P3 (Metal end cap)
Clear
Installation Method
T4 (Dia. 20 and M12 internal thread)
Clear

Days to Ship

All

18 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently asked question (FAQ)

Question: What causes abnormal noise during roller operation?: Answer: Abnormal noise can be caused by lack of lubrication in the bearings, contamination, misalignment, or loose components.
Question: How do you fix roller jamming after long-term use?: Answer: Remove debris and add lubricant. If the bearing is damaged, replace the component directly.
Question: Will extreme temperatures affect roller usage?: Answer: The recommended operating temperature range for rollers is -15°C; to 45°C

Additional Products in this Category

Tech Support

: Technical Inquiry

Economy Motor Driven Roller Diameter 76 mm	Economy Motor Driven Roller Diameter 76 mm	Economy Motor Driven Roller Diameter 76 mm

EA-MORR-48-76-800-X2-C6-A0-Z3-T3-K5	EA-MORR-48-76-800-X4-C7-B0-L3-T3-K6	EA-MORR-48-76-800-X3-C7-B0-L4-T3-K5

How can we improve?

Free Roller Diameter 76 mm (Part Numbers)

Basic Information

Configure

Specification/Dimensions

Shaft Specifications

Roller Surface Material and Surface Finish

Effective Length(mm)

Drive Head Type

Installation Method

Days to Ship

Specify Alterations

Frequently asked question (FAQ)

Additional Products in this Category

Tech Support

Payment Method

About MISUMI

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