5207SCZZ bearing: complete specifications & equivalents
The 5207SCZZ is a ISO 15 radial bearing sized 35 x 72 x 27 mm (bore x OD x width) with ZZ sealing. Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | NTN |
| Bore diameter d | 35 mm |
| Outer diameter D | 72 mm |
| Width B | 27 mm |
| Material | GCr15 |
| Seal / shield | ZZ |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | steel, stamped ribbon (J-type) |
| Basic dynamic load rating C | 34 kN |
| Basic static load rating C0 | 25.3 kN |
| Fatigue load limit Pu | 1.5 kN |
| Limiting speed (mechanical) | 6300 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 460 g |
| Manufacturer designation | NTN 5207SCZZ |
| 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 | 1.378 in |
|---|---|
| Outer diameter D | 2.835 in |
| Width B | 1.063 in |
| ISO bore code | — |
| Radial section height (D−d)/2 | 18.5 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) | 8 of 18 |
| Bore above smallest 5200S-series size | 25 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 5207SCZZ | 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 5207SCZZ model number is decoded
NTN 5207SCZZ belongs to the medium-duty 5200S double-row family: the catalogue boundary dimensions read 35 / 72 / 27 mm (bore / OD / width). The designation breaks down as 52 is the double-row dimension series (medium-duty 5200S double-row family); 07 encodes the 35 mm bore (bore code x 5), and CZZ marks the double-row SC internal design with pressed-steel shields on both sides. The static margin, C0 25.3 kN versus C 34 kN, is what supports slow oscillating duty and shock without immediate brinelling. Choose the medium-duty 5200S double-row family when the shaft needs a stiff locating support and the axial component is known to act mostly one way. After mounting, check axial float or preload with a dial gauge on the shaft end — the specification, not hand feel, decides whether the contact angle works as rated.
Typical equipment & failure modes
Common applications
- electric motor shafts with axial locating duty
- conveyor drive and tension-drum shafts
- agricultural gearbox and PTO shaft supports
- printing-press cylinder and folder shafts
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
- machined-cage land scoring when a high-speed spindle runs past its grease rating and the cage runs dry on its guidance surface
- edge loading and early spalling from housing bores that are out of round or shoulders that are too small for the ring face
- lubricant starvation scoring at the ball/raceway contact when grease volume or relubrication interval is guessed instead of calculated
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 ZZ shielded 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 5207SCZZ without re-checking axial float, heat and housing width — the kinematics differ.
- Grease rated for deep-groove motor duty is not automatically right at 6,300 r/min with preload; check the grease speed factor against the catalogue figure.
- Do not pair two random 5207SCZZ bearings from stock and expect catalogue paired ratings — matched-set grinding is what makes DB/DF/DT preload behave, and NTN sells those as separate order numbers.
- The 34/25.3 kN ratings and 1.5 kN Pu here are NTN Ball and Roller Bearings CAT.No.2203E figures for 5207SCZZ; 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 5207SCZZ?
5207SCZZ is a sealed double-row angular contact ball bearing to ISO 15: 35 mm bore, 72 mm outside diameter, 27 mm width (1.378 x 2.835 x 1.063 in). From NTN Ball and Roller Bearings CAT.No.2203E: C 34 kN, C0 25.3 kN and a 1.5 kN fatigue load limit Pu; the grease limiting speed is 6,300 r/min and the oil rating 8,500 r/min; mass about 460 g.
How is the 5207SCZZ designation structured?
52 is the double-row dimension series (medium-duty 5200S double-row family); 07 encodes the 35 mm bore (bore code x 5), and CZZ marks the double-row SC internal design with pressed-steel shields on both sides. The 72 mm OD and 27 mm width follow the ISO 15 boundary-dimension plan for that series.
Which axial direction does 5207SCZZ support?
5207SCZZ is a sealed double-row bearing: thrust in both directions, radial and moment load in one envelope, with pressed-steel shields that keep the open-bearing speed ratings.
What lubrication speeds does NTN print for 5207SCZZ?
Per NTN Ball and Roller Bearings CAT.No.2203E, the grease limiting speed is 6,300 r/min and the oil rating 8,500 r/min. 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 5207SCZZ?
The 35/72/27 mm envelope is ISO 15 interchangeable, but internal geometry — contact angle, osculation, cage and shoulder details — is maker-specific. Re-verify C 34 kN / C0 25.3 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.