DR-B series

DR-B type（Cross recessed head）

DR-B type（Cross recessed head and Rosette coined）

DR-B type（Hex socket screw）

Outer diameter 16 to 20 mm Outer diameter 21 to 25 mm Outer diameter 26 to 30 mm Outer diameter 31 to 40 mm
Flat (R-type)Plastics Screw shaft (B-type)D-series DR-series Hex socket screw

Flat and screw shaft type | Plastic bearing | DR-B

Please refer to the catalog for detailed dimensional information.

Model	Boundary dimensions　[mm]
Model	D	B	C	L	Da	Screw specification	Rosette coined	Part No.
1	19	6	0.5	8	8.2	M6 P1.0	–	DR-19-B0.5
2			1				●	DR-19-B1
			2					DR-19-B2
			3					DR-19-B3
1	20	7	0.5	8	9.5	M6 P1.0	–	DR-20-B0.5
2	22	7	0.5	8	9.5	M6 P1.0	–	DR-22-B0.5
			1				●	DR-22-B1
			2					DR-22-B2
			3					DR-22-B3
			4					DR-22-B4
			5					DR-22-B5
			6					DR-22-B6
1	24	7	0.5	8	9.5	M6 P1.0	–	DR-24-B0.5
2			1				●	DR-24-B1-M6×8
			2					DR-24-B2
			3					DR-24-B3
1	26	7	0.5	8	9.5	M6 P1.0	–	DR-26-B0.5
2			1				●	DR-26-B1-M6×8
			2					DR-26-B2
			3					DR-26-B3
			4					DR-26-B4
			5					DR-26-B5
			6					DR-26-B6
1	28	7	0.5	8	9.5	M6 P1.0	–	DR-28-B0.5
2			1				●	DR-28-B1-M6×8
			2					DR-28-B2
			3					DR-28-B3
1	30	7	0.5	8	9.5	M6 P1.0	–	DR-30-B0.5
2			1				●	DR-30-B1-M6×8
			2					DR-30-B2-M6×8
			3					DR-30-B3

If you would like to know more about the meaning of the product name codes, please see the configuration of part numbers.

No	Item	Symbol	Meaning
①	Outer race material symbol	D	Polyacetal resin
②	Outer race shape symbol	R	Flat
③	Retainer or full ball type	Omitted	Retainer (Polypropylene)
④	Outer race outer diameter	–	(Numerical 　D dimension shown in drawing)
⑤	Ball material symbol	Omitted	Carbon steel ball
⑥	Inner race shape symbol	B	Screw shaft
⑦	Inner race material symbol	Omitted	Carbon steel (Plating)
⑧	Bore and clearance dimension for mounting	–	(Numerical C dimension shown in drawing)
⑨	Additional information	JH	Hex socket screw
⑨	Additional information	M6×8	Screw specification × Screw length L dimension