BMT 629 Bearing
Precision Metric Industrial Specification • High Speed & Load Dynamic Tolerances
| Bearing No. | 629 |
| outer diameter (mm) | 9 |
| outer diameter (inch) | 0.354 |
| inner diameter (mm) | 26 |
| inner diameter (inch) | 1.024 |
| thinkness (mm) | 8 |
| thinkness (inch) | 0.315 |
| Load Rating Cr (N) | 4095 |
| Load Rating Cor (N) | 1773 |
| Max Speed Oil (r/min) | 28800 |
| Reference Weight (kg) | 0.75 |
SAE 52100 Grade Steel
Manufactured from ultra-clean high-carbon chromium steel (100Cr6), hardened to 60-64 HRC for exceptional fatigue life and resistance to subsurface cracking.
In-House QC & Testing Labs
100% pre-dispatch quality verification performed at our dedicated in-house testing laboratories by qualified QC engineers for dimensional runout, radial clearance, and noise testing.
Precision Class (P0 / P6 / P5)
Standard ABEC-1 (ISO Normal / P0) tolerance with optional P6/P5 precision grades for ultra-low vibration (V2/V3) and high rotational accuracy.
Thermal Stabilization
Dimensionally stabilized for continuous operating temperatures from -30°C to +120°C (standard), with high-temperature synthetic grease available up to +180°C.
Radial Clearance (CN / C3)
Available in Standard Normal Clearance (CN) for steady ambient operating environments or C3 Greater Clearance for thermal expansion.
Global Export & Trade Fairs
Export packaging ready for international supply via Nhava Sheva (JNPT) & Mumbai Air Cargo with upcoming planned participation in premier international trade expos.
W33 Lubrication Feature
Standard peripheral annular groove and 3 lubrication holes in outer ring, ensuring direct, uniform grease/oil replenishment to the rollers.
Self-Aligning Internal Geometry
Double row symmetrical barrel rollers rotating in a common spherical outer raceway, accommodating angular misalignment up to 2.5° under heavy loads.
CA / CC / MB Heavy-Duty Cages
Available with one-piece machined brass cage with retaining flanges (CA), stamped steel window cages (CC), or two-piece brass cages (MB).
K / K30 Tapered Bore Options
Tapered inner ring bore (1:12 or 1:30 taper) for direct mounting on tapered shaft journals or mounting via adapter/withdrawal sleeves.
Spherical Roller Bearing Suffix & Nomenclature Guide
Standard manufacturing suffixes for Spherical Roller Bearing series when placing bulk orders or cross-referencing OEM parts:
Frequently Asked Questions for Bearing 629
Everything you need to know regarding specifications, tolerances, delivery, and quality assurance: