Section 3

NMBTC.COM / 818.341.3355

Metric Series Bearings

Standard metric series radial bearings carry moderate radial and thrust loads at low operating torque and provide high performance within small envelope designs.Stainless steel or chrome steel bearings are available with crown or ribbon type metallic cages. Open or shielded bearings may be flanged or unflanged. Various types of seals may be specified depending upon the anticipated environment to which the bearings will be exposed. (See Engineering Section for seal information)

L SERIES

Radial open and flanged open bearings . . . . . 3.2 Bore sizes: 1.0-10.0mm

Radial shielded and flanged shielded bearings . . . 3.3 Bore sizes: 2.0-10.0mm

R SERIES

Radial open and flanged open bearings . . . . . 3.4 Bore sizes: 1.5-8.0mm

Radial shielded and flanged shielded bearings . . . 3.5 Bore sizes: 1.5-8.0mm

600/6000 SERIES

Radial open and shielded bearings . . . . . . . . 3.6 Bore sizes: 5-10mm

3.1

NMBTC.COM / 818.341.3355

Radial Open and Flanged Open Bearings

BO	RE d	O.	D. D	WI	DTH B		FLA	NGE	FLANGED	REFER DIAM	ENCE ETER	FI RAD	LLET IUS r	LOAD R N	ATINGS
MM	INCH	MM	INCH	MM	INCH	*BASIC NUMBER	DIA. Df	WIDTH Bf	*BASIC NUMBER	Li	Lo	MM	INCH	DYN. Cr	STATIC Cor
1.0	.0394	3.0	.1181	1.0	.0394	DDL-310	3.8	0.3	DDLF-310	1.60	2.41	0.05	.002	80	23
1.5	.0591	4.0	.1575	1.2	.0472	DDL-415	5.0	0.4	DDLF-415	2.26	3.25	0.05	.002	125	38
2.0	.0787	5.0	.1969	1.5	.0591	DDL-520	6.1	0.5	DDLF-520	2.90	4.00	0.08	.003	187	59
2.5	.0984	6.0	.2362	1.8	.0709	DDL-625	7.1	0.5	DDLF-625	3.80	4.93	0.08	.003	206	73
3.0	.1181	6.0	.2362	2.0	.0787	DDL-630	7.2	0.6	DDLF-630	3.80	4.93	0.08	.003	206	73
3.0	.1181	7.0	.2756	2.0	.0787	DDL-730	8.1	0.5	DDLF-730	4.10	5.83	0.10	.004	384	129
4.0	.1575	7.0	.2756	2.0	.0787	DDL-740	8.2	0.6	DDLF-740	4.80	5.93	0.08	.003	252	106
4.0	.1575	8.0	.3150	2.0	.0787	DDL-840	9.2	0.6	DDLF-840	5.20	6.93	0.10	.004	391	140
4.0	.1575	9.0	.3543	2.5	.0984	DDL-940	10.3	0.6	DDLF-940	5.20	7.48	0.10	.004	641	226
4.0	.1575	10.0	.3937	3.0	.1181	DDL-1040	11.2	0.6	DDLF-1040	5.80	7.96	0.15	.006	708	266
5.0	.1969	8.0	.3150	2.0	.0787	DDL-850	9.2	0.6	DDLF-850	5.80	6.95	0.08	.003	274	130
5.0	.1969	9.0	.3543	2.5	.0984	DDL-950	10.2	0.6	DDLF-950	6.00	7.73	0.10	.004	495	207
5.0	.1969	10.0	.3937	3.0	.1181	DDL-1050	11.2	0.6	DDLF-1050	6.40	8.63	0.10	.006	714	276
5.0	.1969	11.0	.4331	3.0	.1181	DDL-1150	12.5	0.8	DDLF-1150	6.40	8.63	0.15	.006	714	276
6.0	.2362	10.0	.3937	2.5	.0984	DDL-1060	11.2	0.6	DDLF-1060	6.95	8.73	0.10	.004	457	194
6.0	.2362	12.0	.4724	3.0	.1181	DDL-1260	13.2	0.6	DDLF-1260	7.70	9.94	0.15	.006	831	363
6.0	.2362	13.0	.5118	3.5	.1378	DDL-1360	15.0	1.0	DDLF-1360	8.00	10.98	0.15	.006	1083	438
7.0	.2756	11.0	.4331	2.5	.0984	DDL-1170	12.2	0.6	DDLF-1170	8.10	9.83	0.10	.004	449	199
7.0	.2756	13.0	.5118	3.0	.1181	DDL-1370	14.2	0.6	DDLF-1370	8.90	11.13	0.15	.006	880	414
7.0	.2756	14.0	.5512	3~~.5~~	.1378	DDL-1470	16.0	1.0	DDLF-1470	9.00	12.03	0.15	.006	1175	511
8.0	.3150	12.0	.4724	2.5	.0984	DDL-1280	13.2	0.6	DDLF-1280	9.10	10.93	0.10	.004	506	246
8.0	.3150	14.0	.5512	3.5	.1378	DDL-1480	15.6	0.8	DDLF-1480	9.90	12.13	0.15	.006	819	386
8.0	.3150	16.0	.6299	4.0	.1575	DDL-1680	18.0	1.0	DDLF-1680	10.30	13.40	0.20	.008	1606	712
9.0	.3543	17.0	.6693	4.0	.1575	DDL-1790	19.0	1.0	DDLF-1790	11.20	14.84	0.20	.008	1724	813
9.0	.3543	20.0	.7874	6.0	.2362	DDL-2090	—	—	—	12.32	16.71	0.30	.012	2123	985
10.0	.3937	19.0	.7480	5.0	.1969	DDL-1910	—	—	—	12.32	16.71	0.30	.012	2123	985

r r
r r
D Lo d Li Df Lo d Li D
B Bf
B

NOTES:

1. Basic numbers shown above include code "DD" for NMB developed 400 series Martensitic stainless steel. If chrome steel is desired, delete "DD".

2. ABEC 1, 3, 5 and 7 tolerances apply.

3. r = Maximum shaft or housing fillet radius that bearing corners will clear.

   • "DD" is a trademark of NMB.

3.2

NMBTC.COM / 818.341.3355

Radial Shielded and Flanged Shielded Bearings

BO d	RE	O. D	D.	WI	DTH B		FLA	NGE	FLANGED	REFE DIAM	RENCE ETER	FI RAD	LLET IUS r	LOAD R N	ATINGS
MM	INCH	MM	INCH	MM	INCH	*BASIC NUMBER	DIA. Df	WIDTH Bf	*BASIC NUMBER	Li	Lo	MM	INCH	DYN. Cr	STATIC Cor
2.0	.0787	5.0	.1969	2.3	.0906	DDL-520	6.1	0.6	DDLF-520	2.90	4.28	0.08	.003	187	59
2.5	.0984	6.0	.2362	2.6	.1024	DDL-625	7.1	0.8	DDLF-625	3.80	5.23	0.08	.003	206	73
3.0	.1181	6.0	.2362	2.5	.0984	DDL-630	7.2	0.6	DDLF-630	3.80	5.23	0.08	.003	206	73
3.0	.1181	7.0	.2756	3.0	.1181	DDL-730	8.1	0.8	DDLF-730	4.10	6.13	0.10	.004	384	129
4.0	.1575	7.0	.2756	2.5	.0984	DDL-740	8.2	0.6	DDLF-740	4.80	6.33	0.08	.003	252	106
4.0	.1575	8.0	.3150	3.0	.1181	DDL-840	9.2	0.6	DDLF-840	5.20	7.24	0.10	.004	391	140
4.0	.1575	9.0	.3543	4.0	.1575	DDL-940	10.3	1.0	DDLF-940	5.20	7.93	0.10	.004	641	226
4.0	.1575	10.0	.3937	4.0	.1575	DDL-1040	11.6	0.8	DDLF-1040	5.46	8.50	0.15	.006	708	266
5.0	.1969	8.0	.3150	2.5	.0984	DDL-850	9.2	0.6	DDLF-850	5.80	7.26	0.08	.003	274	130
5.0	.1969	9.0	.3543	3.0	.1181	DDL-950	10.2	0.6	DDLF-950	6.00	8.04	0.10	.004	495	207
5.0	.1969	10.0	.3937	4.0	.1575	DDL-1050	11.6	0.8	DDLF-1050	6.40	8.94	0.10	.006	714	276
5.0	.1969	11.0	.4331	5.0	.1969	DDL-1150	12.5	1.0	DDLF-1150	6.40	9.54	0.15	.006	714	276
6.0	.2362	10.0	.3937	3.0	.1181	DDL-1060	11.2	0.6	DDLF-1060	6.95	9.04	0.10	.004	457	194
6.0	.2362	12.0	.4724	4.0	.1575	DDL-1260	13.6	0.8	DDLF-1260	7.70	10.48	0.15	.006	831	363
6.0	.2362	13.0	.5118	5.0	.1969	DDL-1360	15.0	1.1	DDLF-1360	7.33	11.44	0.15	.006	1083	438
7.0	.2756	11.0	.4331	3.0	.1181	DDL-1170	12.2	0.6	DDLF-1170	8.10	10.14	0.10	.004	449	199
7.0	.2756	13.0	.5118	4.0	.1575	DDL-1370	14.6	0.8	DDLF-1370	8.43	11.54	0.15	.006	880	414
7.0	.2756	14.0	.5512	5.0	.1969	DDL-1470	16.0	1.1	DDLF-1470	9.00	12.45	0.15	.006	1175	511
8.0	.3150	12.0	.4724	3.5	.1378	DDL-1280	13.6	0.8	DDLF-1280	9.10	11.24	0.10	.004	506	249
8.0	.3150	14.0	.5512	4.0	.1575	DDL-1480	15.6	0.8	DDLF-1480	9.90	12.55	0.15	.006	819	386
8.0	.3150	16.0	.6299	5.0	.1969	DDL-1680	18.0	1.1	DDLF-1680	9.68	14.18	0.20	.008	1606	712
9.0	.3543	17.0	.6693	5.0	.1969	DDL-1790	19.0	1.1	DDLF-1790	11.20	15.34	0.20	.008	1724	813
9.0	.3543	20.0	.7874	6.0	.2362	DDL-2090	—	—	—	12.32	17.44	0.30	.012	2123	985
10.0	.3937	19.0	.7480	7.0	.2756	DDL-1910	—	—	—	12.32	17.44	0.30	.012	2123	985

r r
r
r
Lo d Li D Df Lo d Li D
B
Bf
B

NOTES:

1. Basic numbers shown above include code "DD" for NMB developed 400 series Martensitic stainless steel. If chrome steel is desired, delete "DD".

2. ABEC 1, 3, 5 and 7 tolerances apply.

3. r = Maximum shaft or housing fillet radius that bearing corners will clear.

   • "DD" is a trademark of NMB.

3.3