SKF619122RS1Deep Groove Ball Bearing – 60 mm Bore, 85 mm OD, 13 mm Width, Contact Seals, P6 Tolerance

Product Description

What this part is

SKF 61912-2RS1 single-row deep groove ball bearing with contact seals on both faces. Bore Diameter: 60 mm. Outside Diameter: 85 mm. Overall Width: 13 mm. Number Of Rows: 1. Rolling Elements: Ball. Bore Type: Cylindrical. Closure Type: Contact seals both sides. Precision Class: ABEC 3 / P6. Internal Clearance: CN. Bearing Material: Bearing steel. Series: 619. Base Number: 61912. GTIN: 7316577660343.

Decoding the designation

61912 is the ISO 619 extra-light series at a 60 mm bore, the same bearing the trade also numbers 6912. 2RS1 is a nitrile contact seal on each face. No clearance suffix appears, so the bearing is supplied to normal radial internal clearance. Written as 61912-2RS1, 61912 2RS1, 61912RS, 6912-2RS.

What these specs mean in practice

Dynamic Load Rating: 16,500 N. Static Load Rating: 12,000 N. Limiting Speed: 4,500 rpm. Precision Class: ABEC 3 / P6, which is a step tighter than standard on both dimensions and running accuracy — SKF holds inner-ring section height variation to 10 micron and outer-ring to 18 micron on this bearing. The 619 extra-light section gives a 25 mm radial wall at a 60 mm bore, so the part fits where a 62-series bearing would not. The 2RS1 seal lip runs against the inner ring shoulder, holding the grease charge in and fine contamination out, which is what caps the speed at 4,500 rpm.

Quantity and configuration

Unit Quantity: 1 Pc. One bearing per sale unit, sealed on both faces and grease filled.

Mounting data

Shaft abutment diameter: 64.6 mm minimum to 68.2 mm maximum. Housing abutment diameter: 80.4 mm maximum. Shaft and housing fillet radius: 1 mm maximum. Bearing chamfer r1,2: 1 mm minimum. The narrow shoulder band is what the extra-light section costs, so the abutment has to be dimensioned to those figures rather than to a 62-series shoulder.

Interchange guidance

61912 and 6912 are the two ISO forms of the same bearing and the seal codes translate across makers. Cross-Reference 1: FAG 61912-2RSR. Cross-Reference 2: NSK 6912DDU. Cross-Reference 3: NTN 6912LLU. Cross-Reference 4: Koyo 6912-2RS. Cross-Reference 5: NACHI 6912-2NSE. On NTN the LLU code is a contact seal on both sides and on NSK it is DDU, both matching SKF’s 2RS1. Searchable forms: 61912-2RS1, 61912 2RS1, 61912RS, 6912-2RS, 61912.