Ball Roller Cut Product, Male Thread Type (Garbage Discharge)

MISUMI

BCBH (For All Orientations)
BCBH20	BCBH50	(Common to BCBH)
	BCBH120

BCS (Downward-Facing)
BCS20	BCS50	(Common to BCS)
	BCS120

[ ! ] BCBH can be used in both vertical and horizontal orientations.
[ ! ] The threaded part of BCS120 does not have a straight slot groove.

	[M] Material					[S] Surface Treatment
	(1) Main Ball	(2) Cover	(3) Main Body	(4) Threaded Section	Sub Ball	Cover
BCBH	SUJ2	SUM23	SCM415	* SUM23	SUJ2	Electro nickel plating
BCS				SCM415

* The thread material for BCBH120 is SUS304.
* For BCBH120 only, the surface treatment of the main body is electroless nickel plating.

Specification Table

Part Number

BCS120

Part Number		D	D₁	d	B	h₁	h₂	F₁	M (Coarse)	Z	Mounting Orientation	Waste Discharge Hole	Load Capacity N(kgf)
Type	No.	D	D₁	d	B	h₁	h₂	F₁	M (Coarse)	Z	Mounting Orientation	Waste Discharge Hole	Load Capacity N(kgf)
BCBH	20	24	21	15.875	4.5	20.5	10	4	M8	3.5	*All Orientations	Threaded Section	343 (35)
	50	30	27	19.05	6	26	10	5	M8	3.5			588 (60)
	120	42	36	25.40	8	42	20	6.5	M10	4			1,470 (150)
BCS	20	24	21	15.875	4.5	20.5	12	4	M6	—	Downward-Facing	Head	343 (35)
	50	30	27	19.05	6	26	20	5	M8	—			588 (60)
	120	42	36	25.40	8	36	20	6.5	M10	—			1,470 (150)

*Please note that the waste discharge mechanism works only when installed facing up.

Specifications / Overview

Waste discharge feature lets you use it in any orientation, up, down, left or right.

Do you have the following issues?

Issue 1: You want to use ball rollers in various orientations

Issue 2: Rotation is slowed when waste gets inside the ball roller

Try our solutions

Solution 1:: They can be used in any orientation, including face-up or face-down, so you can position it freely.

Solution 2:: The waste discharge feature increases the product's service life and reduces maintenance time compared to conventional products

Waste Discharge Hole Structure

An innovative solution for discharging waste has been achieved

With head dust ejection slit

Ball Rollers - Milled Male Thread Type (garbage discharge): Related Image

[Enlarged view of waste discharge hole/slit]

Ball rollers (milled ball rollers) with waste discharge holes do not bear load on the small ball receiving surface directly below the large ball.
This structure allows for a large number of waste discharge holes at the lowest point of the body or a waste discharge slit at the highest point of the body.
Holes have been machined in the smaller ball contact area—something that was considered difficult with conventional structures—thus allowing debris and water that have gotten inside the structure to be discharged to keep rotation continuing smoothly.