INASL014934-ADouble-Row Full-Complement Cylindrical Roller Bearing – 170 mm ID, 230 mm OD, 60 mm Width, Locating Design, Dimension Series 49

Product Description

What this part is:

INA SL014934-A double-row full-complement cylindrical roller bearing. Bore Diameter: 170 mm. Outside Diameter: 230 mm. Overall Width: 60 mm. Rolling Elements: Cylindrical Roller. Number Of Rows: 2. Bore Type: Straight. Closure Type: Open. Dynamic Load Rating: 435,000 N. Static Load Rating: 930,000 N. Limiting Speed: 1,580 rpm. Reference Speed: 1,010 rpm. Cage Type: Full complement, cageless. Internal Clearance: CN. Precision Class: RBEC 1 / P0. Bearing Material: Chrome steel. Item Weight: 7.04 kg (15.52 lb). Series: SL0149. Base Number: SL014934. Unit Quantity: 1 Pc.

Decoding the designation:

SL01 — double-row full-complement cylindrical roller bearing in the locating design, ribbed on both rings.

49 — ISO dimension series 49, a wide low-section series that packs two roller rows into a shallow radial envelope.

34 — bore code. Bore Diameter: 170 mm.

The equivalent DIN 5412 designation published by Schaeffler for this bearing is NNC4934V.

Searchable forms of the designation: SL014934-A, SL014934A, SL01 4934 A, SL014934, NNC4934V.

What these specs mean in practice:

Dynamic Load Rating: 435,000 N. Static Load Rating: 930,000 N. Fatigue load limit: 115,000 N. A static rating above the dynamic rating is normal on a full-complement roller bearing, where every pocket is filled with a roller and a stationary load is spread across the whole complement.

Leaving the cage out is what puts this much capacity into a 60 mm radial section. The trade is speed: roller-to-roller sliding generates more heat than a caged set, which is why Limiting Speed is 1,580 rpm and Reference Speed 1,010 rpm.

The SL01 locating design is ribbed on both rings, so it carries radial load and axial load in both directions and fixes the shaft on its own.

Operating temperature range published by Schaeffler: −30 °C to +120 °C.

A cylindrical roller bearing has no contact angle.

Mounting data:

Bore Diameter: 170 mm, straight. Outside Diameter: 230 mm. Overall Width: 60 mm. Shaft shoulder diameter da 193.1 mm minimum, minimum shaft shoulder dc 193 mm. Housing shoulder diameter Da 209.5 mm maximum. Maximum recess radius ra 2 mm. Minimum chamfer dimension r 2 mm. Maximum inner ring rib diameter d1 193.1 mm. Minimum outer ring rib diameter D1 209.1 mm. Distance to the lubrication hole C 30 mm.

Quantity and configuration:

Unit Quantity: 1 Pc. One complete double-row bearing, open on both faces.

Interchange guidance:

Cross-Reference 1: INA SL014934-A. Cross-Reference 2: FAG SL014934-A. Cross-Reference 3: SKF NNC 4934 CV. Cross-Reference 4: NSK NNCF4934V. Cross-Reference 5: NTN NNC4934V. Cross-Reference 6: Nachi NNC4934.

All six share the 170 x 230 x 60 mm envelope of ISO dimension series 49 and the double-row full-complement design ribbed on both rings, so they answer to the same DIN 5412 NNC4934V designation. Fafnir, RHP, MRC and SNR do not build this series, so the interchange list stops at six.