INASL045004PPDouble-Row Full-Complement Cylindrical Roller Bearing – 20 mm ID, 42 mm OD, 30 mm Width, Sealed Both Sides, Locating Design

Product Description

What this part is

INA SL045004-PP double-row full-complement cylindrical roller bearing with lip seals on both faces. Bore Diameter: 20 mm. Outside Diameter: 42 mm. Overall Width: 30 mm. Rolling Elements: Cylindrical Roller. Number Of Rows: 2. Bore Type: Straight. Closure Type: Lip seals both sides. Dynamic Load Rating: 41,500 N. Static Load Rating: 51,000 N. Limiting Speed: 5,500 rpm grease. Cage Type: Full complement, cageless. Internal Clearance: CN. Precision Class: RBEC 1 / P0. Bearing Material: Chrome steel. Item Weight: 0.190 kg (0.42 lb). Series: SL04. Base Number: SL045004. Unit Quantity: 1 Pc.

Decoding the designation

SL04 — double-row full-complement cylindrical roller bearing, locating design, with a central rib on the outer ring and three ribs on the inner ring. The ribs on both rings are what give it axial capacity in both directions.

5004 — size code. Bore Diameter: 20 mm, Outside Diameter: 42 mm.

PP — lip seals on both faces.

Searchable forms of the designation: SL045004PP, SL045004-PP, SL04 5004 PP, SL04-5004-PP, SL045004-PP-2NR, SL045004.

What these specs mean in practice

Dynamic Load Rating: 41,500 N. Static Load Rating: 51,000 N. Fatigue load limit: 7,000 N. Filling the annulus with rollers and leaving out the cage is what puts this much capacity into a 42 mm outside diameter.

A full-complement bearing trades speed for load: roller-to-roller sliding contact generates more heat than a caged set, which is why the grease limiting speed is 5,500 rpm.

The SL04 locating design carries radial load and axial load in both directions, so one bearing can fix a short shaft on its own.

Closure Type: Lip seals both sides. Operating temperature range published by Schaeffler: −20 °C to +80 °C, which is the seal material limit rather than the steel limit.

A cylindrical roller bearing has no contact angle.

Mounting data

Bore Diameter: 20 mm, straight. Outside Diameter: 42 mm. Overall Width: 30 mm. Outer ring width C 29 mm. Minimum shaft shoulder diameter 31 mm. Inner ring rib diameter d1 31 mm, sealing rib diameter d2 34 mm. Minimum chamfer dimension r 0.3 mm, chamfer width t 0.5 mm, chamfer angle 30°. Distance between rolling elements X 22.5 mm.

Outer ring snap-ring provision: groove diameter D1 40.2 mm, groove width m 1.8 mm, distance between ring grooves C1 24.7 mm, ring groove tolerance 0 to +0.2 mm. Mounting dimension for a WRE snap ring Ca1 21.5 mm, tolerance 0 to −0.2 mm, snap ring outside diameter d3 47 mm. Mounting dimension for a DIN 471 retaining ring Ca2 21 mm, tolerance 0 to −0.2 mm.

Quantity and configuration

Unit Quantity: 1 Pc. One complete bearing, sealed on both faces.

Interchange guidance

Cross-Reference 1: INA SL045004-PP. Cross-Reference 2: FAG SL045004-PP. Cross-Reference 3: SKF NNF 5004 ADA-2LSV. Cross-Reference 4: NTN SL045004NR.

All four share the 20 x 42 x 30 mm envelope, the double-row full-complement roller set and lip seals on both faces. The SL04 sealed full-complement range is built by a short list of makers, so a nine-way interchange does not exist for this type; the references above are the genuine ones.