Deep Groove Ball Bearings
6308 Deep Groove Ball Bearing
40 × 90 × 23 mm
6308 is a deep groove ball bearing from the 6300 series with a 40 mm bore, a 90 mm outside diameter and a 23 mm width. It has a dynamic load rating of 36,450 N and a static load rating of 21,600 N and a speed rating of 8,280 rpm (oil lubrication), weighing about 0.63 kg. The radial cross-section (D − d) is 50 mm.
Brands: NTN, FAG, SKF, NBC, DTC, SLS
6308 Specifications
| Bearing No. | 6308 |
|---|---|
| d (Bore) | 40 mm |
| D (Outer Dia.) | 90 mm |
| B (Width) | 23 mm |
| Dynamic Load | 36,450 N |
| Static Load | 21,600 N |
| Max. RPM | 8,280 |
| Weight | 0.63 kg |
| Series | 6300 Series Single Row Deep Groove Ball Bearings |
6308 Variants & Designations
Typical designations for this size, subject to availability. Full suffix meanings are listed on the 6300 series page.
6308-ZZ
metal shields on both sides
6308-2RS
rubber seals on both sides
6308 C3
radial clearance larger than normal
6308-2RS C3
sealed, with C3 clearance
6308 N
snap ring groove in the outer ring
6308 M
machined brass cage
Neighbouring Sizes in the 6300 Series
6308 — Frequently Asked Questions
What are the dimensions of the 6308 bearing?
The 6308 has a bore (d) of 40 mm, an outside diameter (D) of 90 mm and a width of 23 mm, so it is written 40 × 90 × 23 mm.
What is the load rating of the 6308?
Dynamic load rating 36,450 N and static load rating 21,600 N. The speed rating is 8,280 rpm with oil lubrication; for grease lubrication use about 75% of that value.
Is the 6308 available with seals, special clearance or other options?
Yes, subject to availability. Typical designations include 6308-ZZ (metal shields on both sides), 6308-2RS (rubber seals on both sides), 6308 C3 (radial clearance larger than normal), 6308-2RS C3 (sealed, with C3 clearance). Tell us the exact designation you need in a quote request.
Which other bearings have the same 40 mm bore as the 6308?
Other deep groove ball bearings with a 40 mm bore include 6808 (52 mm OD), 6908 (62 mm OD), 6008 (68 mm OD), 16008 (68 mm OD). A larger outside diameter generally means a higher load rating.
Do you supply the 6308 bearing across India?
Yes. Logass Trade Centre supplies the 6308 Pan India with technical support, from single pieces to bulk orders. Use the quote button to share your quantity and brand preference.
Need pricing on the 6308?
Share your quantity and preferred brand — our technical team will confirm availability and pricing within one business day.