Spyraflo | Needle Roller Specifications

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Needle Roller Specifications

Drawn-Cup Needle Roller Bearings combine a narrow cross-section with the high performance of a rolling element bearing; the larger contact area of rollers over ball bearings make Needle Roller Bearings a good choice for high loadcarrying applications. The Needle Roller’s hardened shaft acts as the inner bearing raceway with the needles generally being retained in a cage. The "ReadyMount” assembly incorporates the necessary sizing criteria associated with Needle Roller Bearings ensuring optimum performance at minimum cost.
Spyraflo Needle Roller bearings are supplied pre-lubricated with a lithium-complex grease for optimum performance in normal operating conditions. High temperature grease, sealed and full compliment options are available.

Needle Roller Bearing Features:

High Load and Speed capability
Suitable for Rotational Motion only
Hardened Steel Shaft required

Needle Roller \| Self-Clinch/Self-Align


Bearing I.D. Nominal	Shaft Dia. Min/Max	Max Radial Dyn. Load	Max. Speed	Panel Hole	Min. Panel Thick	Min. Dist. C/L to Edge	Flange Dia.	Height	Weight	Part No.

		Lbf/N	RPM	A	B		C	D

1/8"	.1247-.1250	240	31,500	.500	.04	.375	.55	.40	0.2 oz	FSN-125
3/16"	.1872-.1875	630	21,000	.625	.06	.450	.67	.46	0.4 oz	FSN-187
1/4"	.2495-.2500	570	44,000	.625	.06	.450	.67	.46	0.9 oz	FSN-250
5/16"	.3120-.3125	650	35,500	.812	.06	.500	.87	.64	0.8 oz	FSN-312
3/8"	.3754-.3759	650	29,500	.812	.06	.500	.87	.64	0.7 oz	FSN-375
1/2"	.4995-.5000	1,040	22,000	1.063	.075	.750	1.10	.77	1.4 oz	FSN-500
5/8"	.6245-.6250	1,830	17,600	1.250	.09	.750	1.30	.89	2.3 oz	FSN-625
4MM	3.992-4.000	1,780	41,000	15.90	1.5	11.5	17.0	11.6	11 g	FSN-4M
6MM	5.992-6.000	2,030	35,000	15.90	1.5	11.5	17.0	11.6	10 g	FSN-6M
8MM	7.991-8.000	2,750	28,000	20.60	1.5	12.7	22.0	16.3	23 g	FSN-8M
10MM	9.991-10.000	4,400	23,000	20.60	1.5	12.7	22.0	16.3	20 g	FSN-10M
12MM	11.989-12.000	4,950	20,000	27.00	2.0	19.0	28.0	19.5	40 g	FSN-12M
15MM	14.989-15.000	7,900	16,000	31.80	2.3	19.0	33.0	22.5	71 g	FSN-15M

Needle Roller \| Self-Clinch/Non-Align


Bearing I.D. Nominal	Shaft Dia. Min/Max	Max Radial Dyn. Load	Max. Speed	Panel Hole	Min. Panel Thick	Min. Dist. C/L to Edge	Flange Dia.	Height	Weight	Part No.

		Lbf/N	RPM	A	B		C	D

1/8"	.1247-.1250	240	31,500	.375	.04	.250	.42	.312	0.1 oz	FSNN-125
3/16"	.1872-.1875	630	21,000	.500	.04	.375	.55	.500	0.3 oz	FSNN-187
1/4"	.2495-.2500	570	44,000	.625	.06	.450	.67	.440	0.4 oz	FSNN-250
5/16"	.3120-.3125	650	35,500	.625	.06	.450	.67	.440	0.3 oz	FSNN-312
3/8"	.3745-.3750	650	29,500	.812	.06	.500	.87	.440	0.6 oz	FSNN-375
1/2"	.4995-.5000	1,040	22,000	.875	.06	.625	.92	.500	0.7 oz	FSNN-500
5/8"	.6245-.6250	1,830	17,600	1.063	.075	.750	1.10	.625	1.3 oz	FSNN-625
3/4"	.7495-.7500	2,210	14,700	1.250	.09	.750	1.30	.625	1.5 oz	FSNN-750
4MM	3.992-4.000	1,780	41,000	12.70	1.0	9.5	14.0	10.8	7 g	FSNN-4M
6MM	5.992-6.000	2,030	35,000	15.90	1.5	11.5	17.0	10.8	12 g	FSNN-6M
8MM	7.991-8.000	2,750	28,000	15.90	1.5	11.5	17.0	11.1	9 g	FSNN-8M
10MM	9.991-10.000	4,400	23,000	20.60	1.5	12.7	22.0	12.7	20 g	FSNN-10M
12MM	11.989-12.000	4,950	20,000	20.60	1.5	12.7	22.0	12.7	16 g	FSNN-12M
15MM	14.989-15.000	7,900	16,000	27.00	2.0	19.0	28.0	18.7	32 g	FSNN-15M
18MM	17.989-18.000	8,100	13,000	31.80	2.3	19.0	33.0	16.0	34 g	FSNN-18M

Needle Roller \| Press-Fit/Self-Align


Bearing I.D. Nominal	Shaft Dia. Min/Max	Max. Radial Dyn. Load	Max. Speed	Mount. Hole	Flange Dia.	Flange Height	Height	Weight	Part. No.

		Lbf/N	RPM	A	B	C	D

1/8"	.1247-.1250	240	31,500	.500	.56	.03	.37	0.2 oz	PSN-125
3/16"	.1872-.1875	630	21,000	.625	.69	.03	.43	0.4 oz	PSN-187
1/4"	.2495-.2500	570	44,000	.625	.69	.03	.43	0.8 oz	PSN-250
5/16"	.3120-.3125	650	35,500	.812	.88	.03	.60	0.7 oz	PSN-312
3/8"	.3745-.3750	650	29,500	.812	.88	.03	.60	0.6 oz	PSN-375
1/2"	.4995-.5000	1,040	22,000	1.063	1.13	.03	.77	1.5 oz	PSN-500
5/8"	.6245-.6250	1,830	17,600	1.250	1.31	.03	.85	2.4 oz	PSN-625
4MM	3.992-4.000	1,780	41,000	15.90	17.4	.75	10.8	11 g	PSN-4M
6MM	5.992-6.000	2,030	35,000	15.90	17.4	.75	10.8	10 g	PSN-6M
8MM	7.991-8.000	2,750	28,000	20.60	22.2	.75	15.2	22 g	PSN-8M
10MM	9.991-10.000	4,400	23,000	20.60	22.2	.75	15.2	20 g	PSN-10M
12MM	11.989-12.000	4,950	20,000	27.00	28.5	.75	19.6	44 g	PSN-12M
15MM	14.989-15.000	7,900	16,000	31.80	33.3	.75	21.6	66 g	PSN-15M

Needle Roller Clutch \| Self-Clinch/Non-Align


Bearing I.D. Nominal	Shaft Dia. Min/Max	Max Radial Dyn Load	Max. Speed	Torque	Panel Hole	Min. Panel Thick	Min. Dist. C/L to Edge	Flange Dia.	Height	Part No.

		Lbf/N	RPM		A	B		C	D

1/4"	.2497-.2500	570	12,000	18.6 in-lb	.625	.06	.45	.67	.94	FSC-250
3/8"	.3745-.3750	1,350	12,000	50.4 in-lb	.875	.06	.63	.92	1.00	FSC-375
6MM	5.992-6.000	2,030	13,000	1.7 N-m	15.90	1.5	11.5	17.0	23.8	FSC-6M
8MM	7.990-8.000	4,050	12,000	3.1 N-m	22.20	1.5	16.0	23.0	25.4	FSC-8M

Needle Roller \| Self-Align/Flange-Mount


Bearing I.D. Nominal	Shaft Dia. Min/Max	Max Radial Dyn Load	Max. Speed	Brng Clear. Dia.	Flange Length	Flange Width	Mnt. Hole Ctrs.	Flange Thick.	Hght		Part No.

		Lbf/N	RPM	A	B	C	D	E	F	G

1/8"	.1247-.1250			17/32	1.80	.88	1.22	.05	.40	7/32	BFM-125-N
3/16"	.1872-.1875			21/32	2.10	1.19	1.53	.06	.46	7/32	BFM-187-N
1/4"	.2495-.2500	570	44,000	21/32	2.10	1.19	1.53	.06	.46	7/32	BFM-250-N
5/16"	.3120-.3125	650	35,500	27/32	1.78	1.25	1.22	.09	.64	7/32	BFM-312-N
3/8"	.3745-.3750	650	29,500	27/32	1.78	1.25	1.22	.09	.64	7/32	BFM-375-N
1/2"	.4995-.5000	1,040	22,000	1 3/32	2.34	1.56	1.78	.09	.77	7/32	BFM-500-N
5/8"	.6245-.6250	1,830	17,600	1 9/32	2.34	1.85	1.78	.09	.89	7/32	BFM-625-N
4MM	3.992-4.000			17.0	53.0	30.0	39.0	1.5	11.6	5.5	BFM-4M-N
6MM	5.992-6.000	2,030	35,000	17.0	53.0	30.0	39.0	1.5	11.6	5.5	BFM-6M-N
8MM	7.991-8.000	2,750	28,000	22.0	45.0	31.8	30.9	2.3	16.3	5.5	BFM-8M-N
10MM	9.991-10.000	4,400	23,000	22.0	45.0	31.8	30.9	2.3	16.3	5.5	BFM-10M-N
12MM	11.989-12.000	4,950	20,000	28.0	60.0	39.6	45.2	2.3	19.5	5.5	BFM-12M-N
15MM	14.989-15.000	7,900	16,000	33.0	60.0	47.0	45.2	2.3	22.5	5.5	BFM-15M-N

Needle Roller \| Flange/Non-Align


Bearing I.D. Nominal	Shaft Dia. Min/Max	Max Radial Dyn Load	Max. Speed	Brng Clear. Dia.	Flange Length	Flange Width	Mnt. Hole Ctrs.	Flange Thick.	Hght		Part No.

		Lbf/N	RPM	A	B	C	D	E	F	G

1/8"	.1247-.1250			13/32	1.80	.88	1.22	.05	.312	7/32	BFM-125-NN
3/16"	.1872-.1250			17/32	1.80	.88	1.22	.05	.500	7/32	BFM-187-NN
1/4"	.2495-.2500	570	44,000	21/32	2.10	1.19	1.53	.06	.440	7/32	BFM-250-NN
5/16"	.3120-.3125	650	35,500	21/32	2.10	1.19	1.53	.06	.440	7/32	BFM-312-NN
3/8"	.3745-.3750	650	29,500	27/32	1.78	1.25	1.22	.09	.440	7/32	BFM-375-NN
1/2"	.4995-.5000	1,040	22,000	29/32	2.10	1.26	1.53	.09	.500	7/32	BFM-500-NN
5/8"	.6245-.6250	1,830	17,600	1 3/32	2.34	1.56	1.78	.09	.735	7/32	BFM-625-NN
3/4"	.7495-.7500	2,210	14,700	1 9/32	2.34	1.56	1.78	.09	.625	7/32	BFM-750-NN
4MM	3.992-4.000			10.5	45.7	22.4	31.0	1.3	10.8	5.5	BFM-4M-NN
6MM	5.992-6.000	2,030	35,000	16.7	53.0	30.0	38.8	1.5	10.8	5.5	BFM-6M-NN
8MM	7.991-8.000	2,750	28,000	16.7	53.0	30.0	38.8	1.5	11.1	5.5	BFM-8M-NN
10MM	9.991-10.000	4,400	23,000	22.0	45.0	31.8	31.0	2.3	12.7	5.5	BFM-10M-NN
12MM	11.989-12.000	4,950	20,000	22.0	45.0	31.8	31.0	2.3	12.7	5.5	BFM-12M-NN
15MM	14.989-15.000	7,900	16,000	28.0	59.4	39.6	45.2	2.3	18.7	5.5	BFM-15M-NN
18MM	17.989-18.000	8,100	13,000	32.5	59.4	39.6	45.2	2.3	16.0	5.5	BFM-18M-NN

Needle Roller \| Pillow Block


Bearing I.D. Nominal	Shaft Dia. Min/Max	A	B	C	D	E	F	G	Max. Spd. (rpm)	*Max Radial Dyn Load	Part No.

1/4"	.2495-.2500	9/16	2 1/4	1 3/4	1 1/8	7/16	9/32	1/4	26400	342 lbf	PB1-250-N
5/16"	.3120-.3125	9/16	2 1/4	1 3/4	1 1/8	5/8	9/32	1/4	21300	390 lbf	PB1-312-N
3/8"	.3745-.3750	9/16	2 1/4	1 3/4	1 1/8	5/8	9/32	1/4	17700	390 lbf	PB1-375-N
1/2"	.4995-.5000	3/4	3 1/4	2 1/2	1 9/16	25/32	11/32	5/16	13200	620 lbf	PB2-500-N
5/8"	.6245-.6500	3/4	3 1/4	2 1/2	1 9/16	7/8	11/32	5/16	10560	1100 lbf	PB2-625-N
3/4"	.7495-.7500	1 1/4	5.0	4.0	2 9/16	29/32	9/16	9/16	7800	1330 lbf	PB4-750-N
6mm	5.992-6.000	14.5	57.0	44.5	28.5	11.0	7.0	6.5	21000	1220 N	PB1-6M-N
8mm	7.991-8.000	14.5	57.0	44.5	28.5	11.0	7.0	6.5	16800	1650 N	PB1-8M-N
10mm	9.991-10.000	14.5	57.0	44.5	28.5	11.0	7.0	6.5	13800	2640 N	PB1-10M-N
12mm	11.989-12.000	19.0	82.5	63.5	39.5	20.0	8.7	8.0	12000	2970 N	PB2-12M-N
15mm	14.989-15.000	19.0	82.5	63.5	39.5	20.0	8.7	8.0	9600	4740 N	PB2-15M-N
18mm	17.989-18.000	32.0	127.0	101.5	65.0	23.0	14.3	14.5	7800	4860 N	PB4-18M-N

*Based on the load being transmitted directly through the mounting base.

Needle Roller \| Housing Flange


Bearing I.D. Nominal	Shaft Min/Max	A	B	C	D	E	F	Max. Spd. (rpm)	Max Radial Dyn. Load	Part No.

1/4"	.2495-.2500	2 1/4	1 3/4	1 1/8	7/16	3/16	9/32	26400	490 lbf	HF2-250-N
5/16"	.3120-.3125	2 1/4	1 3/4	1 1/8	5/8	3/16	9/32	21300	340 lbf	HF2-312-N
3/8"	.3745-.3750	2 1/4	1 3/4	1 1/8	5/8	3/16	9/32	17700	340 lbf	HF2-375-N
1/2"	.4995-.5000	3 1/4	2 1/2	1 5/8	25/32	1/4	13/32	13200	850 lbf	HF3-500-N
5/8"	.6245-.6500	3 1/4	2 1/2	1 5/8	7/8	1/4	13/32	10560	700 lbf	HF3-625-N
3/4"	.7495-.7500	5.0	4.0	2 5/8	29/32	3/8	9/16	7800	2000 lbf	HF5-750-N
6mm	5.992-6.000	57.0	44.5	28.5	11.0	5.0	7.0	21000	2180 N	HF2-6M-N
8mm	7.991-8.000	57.0	44.5	28.5	15.9	5.0	7.0	16800	1510 N	HF2-8M-N
10mm	9.991-10.000	57.0	44.5	28.5	15.9	5.0	7.0	13800	1510 N	HF2-10M-N
12mm	11.989-12.000	82.5	63.5	41.5	20.0	6.5	10.5	12000	3800 N	HF3-12M-N
15mm	14.989-15.000	82.5	63.5	41.5	22.0	6.5	10.5	9600	3110 N	HF3-15M-N
18mm	17.989-18.000	127.0	101.5	66.5	23.0	9.5	14.5	7800	9600 N	HF5-18M-N

More Information:
Needle Roller Overview
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