BMT 6808 Bearing
Precision Metric Industrial Specification • High Speed & Load Dynamic Tolerances
| Bearing NO. | 6808 |
| I.D (d) mm | 40 |
| I.D (d) inch | 1.5748 |
| O.D (D) mm | 52 |
| O.D (D) inch | 2.0472 |
| Width (B) mm | 7 |
| Width (B) inch | 0.2756 |
| Load Cr (KN) | 5.1 |
| Load Cor (KN) | 4.4 |
| Ball Qty | 22 |
| Ball Size (mm) | 3.5 |
| Grease Speed | 10000 |
| Oil Speed | 13000 |
| Weight (KG) | 0.033 |
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.
2RS Dual Contact Rubber Seals
NBR synthetic rubber seals bonded to a steel insert. Maximum sealing barrier against fine dust, slurry, moisture, and liquid splash. Pre-lubricated with premium industrial grease for maintenance-free life.
ZZ Dual Metal Dust Shields
Dual pressed sheet steel shields providing protection against foreign particulates and debris while delivering zero contact friction penalty for maximum limiting RPM.
Open Configuration
Unshielded open construction engineered for internal transmission casings, gearboxes, and circulating oil-bath systems.
Radial Clearances (CN / C3)
Available in Normal Radial Clearance (CN) for standard ambient operation and C3 Greater Clearance for electric motors and thermal expansion.
Deep Groove Ball Bearing Suffix & Nomenclature Guide
Standard manufacturing suffixes for Deep Groove Ball Bearing series when placing bulk orders or cross-referencing OEM parts:
Frequently Asked Questions for Bearing 6808
Everything you need to know regarding specifications, tolerances, delivery, and quality assurance: