5307SCLLD bearing: complete specifications & equivalents
The 5307SCLLD is a ISO 15 radial bearing sized 35 x 80 x 34.9 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 | 35 mm |
| Outer diameter D | 80 mm |
| Width B | 34.9 mm |
| Material | GCr15 |
| Seal / shield | 2RS |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 44 kN |
| Basic static load rating C0 | 33.5 kN |
| Fatigue load limit Pu | 2 kN |
| Limiting speed (mechanical) | 4800 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 790 g |
| Manufacturer designation | NTN 5307SCLLD |
| 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 & 5300S-series range
| Bore d | 1.378 in |
|---|---|
| Outer diameter D | 3.15 in |
| Width B | 1.374 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 22.5 mm |
| Smallest bore in 5300S-series | 15 mm |
| Largest outer diameter in 5300S-series | 150 mm |
| Width range across 5300S-series | 19–63.5 mm |
| Bore position in 5300S-series (smallest first) | 6 of 13 |
| Bore above smallest 5300S-series size | 20 mm |
Cross references & equivalents
No verified interchange data yet. Send an inquiry and our team will confirm equivalents manually.
How the 5307SCLLD model number is decoded
In NTN Ball and Roller Bearings CAT.No.2203E, 5307SCLLD appears as a heavy-duty 5300S double-row family bearing of 35 mm bore, 80 mm outside diameter and 34.9 mm width. NTN builds the number from 53 is the double-row dimension series (heavy-duty 5300S double-row family), then 07 encodes the 35 mm bore (bore code x 5), and CLLD marks the SC internal design with contact rubber seals on both sides. The grease limiting speed is 4,800 r/min and no oil rating is printed for this execution. When axial load reverses, specify the bearing as a matched pair (DB, DF or DT) instead of two random singles — the catalogue right-hand columns give the paired ratings for exactly this reason. A 35 mm shaft typically takes a k5/m5 fit for rotating inner-ring load; keep the housing bore to G6/H6 class so the contact geometry is not distorted.
Typical equipment & failure modes
Common applications
- machine-tool spindle cartridges and driven tooling
- industrial pump and blower impeller shafts
- gearbox input shafts under helical-gear thrust
- electric motor shafts with axial locating duty
Known failure patterns
- false brinelling on the raceway contact ellipses when a preloaded spindle sits vibrating at standstill — visible as evenly spaced flute-like wear at ball pitch
- 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
- contamination-induced denting — hard particles rolled into the contact ellipse become the initiation points for surface fatigue
- flaking that starts at the raceway shoulder on the thrust-loaded side when axial load repeatedly exceeds the design share
Selection pitfalls — read before you substitute
- In this size class the common miss is lubrication interval, not fit — a 35 mm spindle at the catalogue speeds needs a calculated relubrication plan, not a calendar one.
- Sealed LLD contact-seal executions are grease-for-life: there is no relubrication path, so the grease life calculation replaces the relubrication plan.
- A single-row angular contact left loose on the shaft to "help assembly" will fret the seat: the contact angle keeps driving the ring axially under load.
- On a 35 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.
- Grease rated for deep-groove motor duty is not automatically right at 4,800 r/min with preload; check the grease speed factor against the catalogue figure.
- The 44/33.5 kN ratings and 2 kN Pu here are NTN Ball and Roller Bearings CAT.No.2203E figures for 5307SCLLD; 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 5307SCLLD?
5307SCLLD is a sealed double-row angular contact ball bearing to ISO 15: 35 mm bore, 80 mm outside diameter, 34.9 mm width (1.378 x 3.15 x 1.374 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 44 kN, C0 33.5 kN and a 2 kN fatigue load limit Pu; the grease limiting speed is 4,800 r/min and no oil rating is printed for this execution; mass about 790 g.
How is the 5307SCLLD designation structured?
53 is the double-row dimension series (heavy-duty 5300S double-row family); 07 encodes the 35 mm bore (bore code x 5), and CLLD marks the SC internal design with contact rubber seals on both sides. The 80 mm OD and 34.9 mm width follow the ISO 15 boundary-dimension plan for that series.
Which axial direction does 5307SCLLD support?
5307SCLLD 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 5307SCLLD?
Per NTN Ball and Roller Bearings CAT.No.2203E, the grease limiting speed is 4,800 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 5307SCLLD?
The 35/80/34.9 mm envelope is ISO 15 interchangeable, but internal geometry — contact angle, osculation, cage and shoulder details — is maker-specific. Re-verify C 44 kN / C0 33.5 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.