7900 Series

7900 series bearings are single row, deep groove, radial ball bearings with ABEC 1, 3, 5, and 7 tolerances. They are angular contact bearings designed for extremely light duty.

7900 Series Bearings

Extremely light duty, angular contact ball bearing
Manufactured to ABEC 1, 3, 5 and 7 tolerances per ABMA Standard 20, typically from SAE 52100 steel. Other material options are available.
Standard contact angle is 30°. Other contact angle options are available.
Part numbers listed are an outer ring relieved configuration. Other design options are available.
Corner radius (r) is the maximum shaft or housing radius that bearing corners will clear.

Bearing Measurement Reference

wdt_ID	Part Number	Bore d<br>(mm.)	Bore d<br>(in.)	Outside<br>Diameter<br>D (mm)	Outside<br>Diameter<br>D (in.)	Width C<br>(mm)	Width C<br>(in.)	Corner<br>Radius<br>R* (mm)	Corner<br>Radius<br>R* (in.)	Basic<br>Dynamic<br>Radial<br>Load<br>Rating<br>Cr (lbs) †	Basic<br>Static<br>Radial<br>Load<br>Rating<br>Cor (lbs) †
1	7900	10	0.3937	22	0.8661	6	0.2362	0.3	0.012	626	316
2	7901	12	0.4724	24	0.9449	6	0.2362	0.3	0.012	677	327
3	7902	15	0.5906	28	1.1024	7	0.2756	0.3	0.012	874	457
4	7903	17	0.6693	30	1.1811	7	0.2756	0.3	0.012	924	515
5	7904	20	0.7874	37	1.4567	9	0.3543	0.3	0.012	1,282	743
6	7905	25	0.9843	42	1.6535	9	0.3543	0.3	0.012	1,401	907
7	7906	30	1.1811	47	1.8504	9	0.3543	0.3	0.012	1,820	1429
8	7907	35	1.3780	55	2.1654	10	0.3937	0.6	0.025	2,917	2237
9	7908	40	1.5748	62	2.4409	12	0.4724	0.6	0.025	2,721	1986
10	7909	45	1.7717	68	2.6772	12	0.4724	0.6	0.025	2,792	2166
11	7910	50	1.9685	72	2.8346	12	0.4724	0.6	0.025	3,858	3412
12	7911	55	2.1654	80	3.1496	13	0.5118	1.0	0.040	4,518	4009
13	7912	60	2.3622	85	3.3465	13	0.5118	1.0	0.040	3,952	3440
14	7913	65	2.5591	90	3.5433	13	0.5118	1.0	0.040	4,091	3636
15	7914	70	2.7559	100	3.9370	16	0.6299	1.0	0.040	4,679	4157
16	7915	75	2.9528	105	4.1339	16	0.6299	1.0	0.040	5,488	4953
17	7916	80	3.1496	110	4.3307	16	0.6299	1.0	0.040	5,651	5225
18	7917	85	3.3465	120	4.7244	18	0.7087	1.0	0.040	7,243	6742
19	7918	90	3.5433	125	4.9213	18	0.7087	1.0	0.040	7,514	7134
20	7919	95	3.7402	130	5.1181	18	0.7087	1.0	0.040	7,692	7456
21	7920	100	3.9370	140	5.5118	20	0.7874	1.0	0.040	9,211	8806
	Part Number	Bore d<br>(mm.)	Bore d<br>(in.)	Outside<br>Diameter<br>D (mm)	Outside<br>Diameter<br>D (in.)	Width C<br>(mm)	Width C<br>(in.)	Corner<br>Radius<br>R* (mm)	Corner<br>Radius<br>R* (in.)	Basic<br>Dynamic<br>Radial<br>Load<br>Rating<br>Cr (lbs) †	Basic<br>Static<br>Radial<br>Load<br>Rating<br>Cor (lbs) †

† Refer to the Technical Info section for Bearing Life Calculations.

* Maximum shaft or housing fillet which bearing corner will clear.

Notes:

Available with shields or seals.
Contact Schatz Bearing Corporation’s Engineering Department for further technical information.
Check with Schatz Bearing Corporation’s Sales Department for price and availability.