5202SCLLD bearing: complete specifications & equivalents
The 5202SCLLD is a ISO 15 radial bearing sized 15 x 35 x 15.9 mm (bore x OD x width) with 2RS sealing. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 15 mm |
| Outer diameter D | 35 mm |
| Width B | 15.9 mm |
| Material | GCr15 |
| Seal / shield | 2RS |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 8.5 kN |
| Basic static load rating C0 | 5.3 kN |
| Fatigue load limit Pu | 0.31 kN |
| Limiting speed (mechanical) | 12000 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 70 g |
| Manufacturer designation | NTN 5202SCLLD |
| Standard | ISO 15 |
| Catalog version | NTN Ball and Roller Bearings CAT.No.2203E |
| Last verified | 2026-10-01 |
Source: catalog reference (NTN Ball and Roller Bearings CAT.No.2203E) · extracted 2026-10-01
Parameters extracted from the official NTN Ball and Roller Bearings catalogue (NTN Ball and Roller Bearings CAT.No.2203E); NTN® is a trademark of NTN Corporation, used here for identification only — mpnbase is not an authorized NTN distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at ntnglobal.com.
Dimensions in inches & 5200S-series range
| Bore d | 0.591 in |
|---|---|
| Outer diameter D | 1.378 in |
| Width B | 0.626 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 10 mm |
| Smallest bore in 5200S-series | 10 mm |
| Largest outer diameter in 5200S-series | 150 mm |
| Width range across 5200S-series | 14.3–49.2 mm |
| Bore position in 5200S-series (smallest first) | 3 of 18 |
| Bore above smallest 5200S-series size | 5 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 5202SCLLD | ISO 15 | verify Commonly quoted cross reference; confirm against the target catalog before ordering. | ISO 15 boundary-dimension envelope; seal suffix convention varies by brand (2RS / DDU / LLU / 2RSR) — verify seal design and temperature range before substituting. |
Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the 5202SCLLD model number is decoded
In NTN Ball and Roller Bearings CAT.No.2203E, 5202SCLLD appears as a medium-duty 5200S double-row family bearing of 15 mm bore, 35 mm outside diameter and 15.9 mm width. Reading the code: 52 is the double-row dimension series (medium-duty 5200S double-row family), 02 encodes the 15 mm bore (bore code x 5), and CLLD marks the SC internal design with contact rubber seals on both sides. With C 8.5 kN and C0 5.3 kN, each mm of bore carries about 0.57 kN of dynamic rating. Where the same envelope must also be sealed, or where mounting mistakes are likely, compare with the double-row 52/53 catalogue pages before fixing the bill of materials. Grease quantity matters as much as grade at 12,000 r/min: fill about a third of the free space and let the bearing purge on first run.
Typical equipment & failure modes
Common applications
- small machine-tool spindle and live-centre positions
- high-speed router, grinder and woodworking spindles
- small pump and compressor shafts with combined load
- servo and stepper motor shafts with axial preload
Known failure patterns
- impact brinelling dents on the 30 deg contact path after a shaft-side hammer blow during mounting, because axial shock travels straight through the contact angle
- loss of preload after housing-fret or shaft creep, leaving the pair loose — ball skidding, cage rattle and a falling natural frequency follow
- resin-cage cracking on the 7900-series sizes after hot, dry running or solvent attack on the polymer
- current-erosion pitting on VFD-driven motor shafts, first visible as a grey frosted band across both raceways
- edge loading and early spalling from housing bores that are out of round or shoulders that are too small for the ring face
Selection pitfalls — read before you substitute
- At 15 mm bore the rings are thin-sectioned: press force must go through the ring being fitted, never through the balls, or the first damage is already in the raceway before the machine runs.
- Sealed LLD contact-seal executions are grease-for-life: there is no relubrication path, so the grease life calculation replaces the relubrication plan.
- Never use a four-point or double-row bearing as a like-for-like swap for a single 5202SCLLD without re-checking axial float, heat and housing width — the kinematics differ.
- Substituting the B (40 deg) execution for the standard 30 deg bearing changes the axial/radial load split — the shaft position and the mating bearing see different forces even though the envelope is identical.
- On a 15 mm shaft, an interference fit eats internal clearance; skipping the clearance/preload recalculation is the classic cause of a new bearing running 20 deg C hotter than the drawing suggests.
- The 8.5/5.3 kN ratings and 0.31 kN Pu here are NTN Ball and Roller Bearings CAT.No.2203E figures for 5202SCLLD; internal geometry legitimately differs between manufacturers, so re-verify ratings, contact angle and suffix before substituting another make on a rated drive.
Frequently asked questions
What are the dimensions and catalogue ratings of NTN 5202SCLLD?
5202SCLLD is a sealed double-row angular contact ball bearing to ISO 15: 15 mm bore, 35 mm outside diameter, 15.9 mm width (0.591 x 1.378 x 0.626 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 8.5 kN, C0 5.3 kN and a 0.31 kN fatigue load limit Pu; the grease limiting speed is 12,000 r/min and no oil rating is printed for this execution; mass about 70 g.
How is the 5202SCLLD designation structured?
52 is the double-row dimension series (medium-duty 5200S double-row family); 02 encodes the 15 mm bore (bore code x 5), and CLLD marks the SC internal design with contact rubber seals on both sides. The 35 mm OD and 15.9 mm width follow the ISO 15 boundary-dimension plan for that series.
Which axial direction does 5202SCLLD support?
5202SCLLD is a sealed double-row bearing: thrust in both directions, radial and moment load in one envelope, with contact rubber seals (grease-lubricated, no oil speed rating).
What lubrication speeds does NTN print for 5202SCLLD?
Per NTN Ball and Roller Bearings CAT.No.2203E, the grease limiting speed is 12,000 r/min and no oil rating is printed for this execution. These are catalogue ceilings for a correctly mounted bearing with the stated lubricant; preload, fill quantity, ambient heat and paired arrangements all move the real limit.
What should be checked before substituting another make for 5202SCLLD?
The 15/35/15.9 mm envelope is ISO 15 interchangeable, but internal geometry — contact angle, osculation, cage and shoulder details — is maker-specific. Re-verify C 8.5 kN / C0 5.3 kN, the speed figures, contact angle and suffix meaning against the donor catalogue before swapping on a rated drive.
Reviewed & verified by the MPN Base engineering desk against source catalog NTN Ball and Roller Bearings CAT.No.2203E on 2026-10-01. Read our editorial & correction policy.