6900 Series Thin Section Deep Groove Ball Bearings

Series overview

6900 Series Deep Groove Ball Bearings

6900 series deep groove ball bearing product photo

Balanced Performance for Medium-Load Applications

The 6900 series includes 16 standard models from 695 to 6910, covering bore sizes from 5 mm to 50 mm. With larger ball complements and thicker ring sections compared to ultra-thin series, these bearings offer significantly higher load ratings while still fitting into relatively compact housings. This makes them a popular choice for electric motors, automotive components, industrial gearboxes, pumps, and compressors where both space efficiency and load capacity are important.

695–6910 Bore 5–50mm Open ZZ 2RZ 2RS

Bearing No.	Bore d mm	OD D mm	Width B mm	Chamfer r min mm	Dynamic Cr kN	Static Cor kN	Ball No.	Ball Size mm	Grease r/min	Oil r/min	Weight kg/pc
695	5	13	4	0.20	1.080	0.430	8	2.000	34000	43000	0.0030
696	6	15	5	0.30	1.350	0.530	8	2.381	32000	40000	0.0040
697	7	17	5	0.30	1.610	0.715	9	2.381	30000	38000	0.0060
698	8	19	6	0.30	1.990	0.865	7	3.500	28000	36000	0.0070
699	9	20	6	0.30	2.480	1.090	9	2.381	27000	34000	0.0080
6900	10	22	6	0.30	2.700	1.270	9	3.175	25000	32000	0.0100
6901	12	24	6	0.30	2.890	1.460	10	3.175	20000	28000	0.0110
6902	15	28	7	0.30	4.100	2.060	10	3.969	19000	26000	0.0160
6903	17	30	7	0.30	4.650	2.580	11	3.969	18000	24000	0.0180
6904	20	37	9	0.30	6.400	3.700	11	4.763	17000	22000	0.0360
6905	25	42	9	0.30	7.050	4.550	12	4.763	14000	18000	0.0430
6906	30	47	9	0.30	7.250	5.000	14	4.763	12000	16000	0.0510
6907	35	55	10	0.30	11.200	7.450	13	5.953	10000	14000	0.0760
6908	40	62	12	0.30	14.600	10.200	13	6.747	8000	12000	0.1130
6909	45	68	12	0.30	15.100	11.200	14	6.747	6000	10000	0.1310
6910	50	72	12	0.30	15.600	12.200	15	6.747	4000	8000	0.1360

Note: Dynamic (Cr) and static (Cor) load ratings are in kN. Grease and oil lubrication speed limits are in r/min. All 16 bore sizes are available open, or sealed with ZZ, 2RZ or 2RS; 6800W7 is a widened variant of the 6800 for extra stiffness at the same bore.

Why choose 6800 series

Characteristics, Applications & Lead Time

Bearing Characteristics

The 6900 series features larger ball complements and thicker ring sections compared to ultra-thin series, delivering substantially higher load ratings while maintaining a relatively compact envelope. Dynamic load ratings range from 1.08 kN to 15.6 kN across the series. Grease-lubricated speed limits reach up to 43,000 r/min on the smallest models. Each bearing is fully inspected before shipment.

Typical Applications

This series is widely used in electric motors, power tools, pumps, compressors, automotive components, industrial gearboxes, and general machinery where reliable performance under moderate to high loads is required. Its balance of compactness and load capacity makes it a versatile choice across many industries.

Lead Time & Minimum Order

All 16 bore sizes in the 6900 series are produced on a continuous rolling schedule. Sample orders typically ship within approximately 10 days, with no strict minimum order quantity for trial batches. Please provide the required bore size, seal type, and quantity, and we will confirm a firm delivery date.

Common questions

Frequently Asked Questions — 6800 Series

What sizes are covered in the 6900 series?

The 6900 series comprises 16 standard models from 695 to 6910, with bore diameters from 5 mm to 50 mm, outer diameters from 13 mm to 72 mm, and widths from 4 mm to 12 mm. Complete dimensions for each model are provided in the specification table above.

How does the 6900 series compare to the 6800 series?

Compared to the 6800 series, the 6900 series uses larger balls and thicker ring sections, resulting in significantly higher dynamic and static load ratings. For example, the 6900 (10 mm bore) has a dynamic rating of 2.70 kN versus 1.83 kN for the 6800. The trade-off is slightly larger outer dimensions and reduced maximum speed.

What load capacity should I expect from this series?

Dynamic load ratings start at 1.08 kN for model 695 and increase to 15.6 kN for model 6910. Static load ratings range from 0.43 kN to 12.2 kN. Refer to the Dynamic Cr and Static Cor columns in the table for the values corresponding to your selected bore size.

Which seal types are offered?

Every model is available in open configuration, or with ZZ metal shields, 2RZ non-contact rubber seals, or 2RS contact rubber seals. Open and ZZ/2RZ versions are better suited for higher-speed applications, while 2RS provides enhanced protection against dust and moisture with a slight reduction in maximum speed.

What's the top speed for 6900 series bearings?

Maximum speed decreases as bore size increases. The smallest models (695 to 699) achieve 27,000 to 43,000 r/min under grease lubrication, while the largest models (6909 to 6910) reach approximately 4,000 to 8,000 r/min. Oil lubrication can further increase the speed limit across all sizes.

Are these bearings suited to axial loads as well as radial?

Yes, within their rated capacity. Like all deep groove ball bearings, the 6900 series primarily supports radial loads but can also accommodate light to moderate axial loads in both directions. This makes them well suited for electric motors and gearboxes where combined loading occurs.

Do 6900 series bearings match other manufacturers' part numbers?

Yes. The 6900 series numbering follows the ISO dimensional standard used across the bearing industry. Bore, outer diameter, and width are interchangeable with equivalent parts from SKF, NSK, NTN, FAG, or Koyo. Send us your current part number and we will confirm the cross-reference.

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