Enduro Bearings "6903" Bearing - 17 x 30 x 7 mm
- Weight : 0.02kg / 0.04lbs
- Packaging Unit: 1 Piece
- Product ID (PID): 36384
- Product safety
Weight
The heaviness of a BMX part, measured by weighing. It's worth noting that weight specifications for BMX parts can vary and may not always be precise. Several factors contribute to this:Manufacturer's weight specifications may be inaccurate or incomplete.The weight of two identical parts can also differ.We cannot weigh every individual part.For example, if there are handlebars in different heights, the manufacturer usually provides just one weight specification for all heights. When weighing two identical tires, you might get two different results.
Source: BMX Glossary
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Online: https://www.kunstform.org/en/enduro-bearings-6903-bearing-17-x-30-x-7-mm-p-36384
Printed: 11/03/2026
Printed: 11/03/2026
The Enduro Bearings "6903" Bearing - 17 x 30 x 7 mm is a sealed deep groove ball bearing, size 17 x 30 x 7 mm (inner diameter x outer diameter x width). Enduro Bearings builds its bearings with the deepest possible race grooves and the largest balls that fit, plus dual lip seals that run in a groove of the inner race and form a labyrinth against water and dirt. The manufacturer names the following applications: front hubs, hubs, suspension pivots, older square taper bottom brackets, e.g. Trek. The versions differ in seal, material and precision grade, see the technical details. The MAX version has no ball retainer and takes the maximum number of balls, which gives 35 to 40 % more load capacity and makes it the right choice for suspension pivots that only rotate a few degrees.
Facts: Enduro Bearings "6903" Bearing - 17 x 30 x 7 mm
- Bearing Size: 6903 (17 x 30 x 7 mm)
- Version: Ceramic Hybrid ABEC 5 (29.5 mm outer race), Ceramic Hybrid LLB ABEC 5, LLB ABEC 3, LLB ABEC 5, LLB ABEC 5 (29.5 mm outer race), LLU MAX ABEC 3, LLU MAX Black Oxide ABEC 3, LLU MAX-E ABEC 3, LLU/LLB ABEC 5 (C3), LLU/LLB ABEC 5 (CN), LLU/LLB Solid-Lube ABEC 5, Stainless LLB, Stainless LLU MAX ABEC 3, XD-15 LLB or Zero Ceramic LLB
- Seal:
- LLB ABEC 3: LLB (light contact dual lip labyrinth seal)
- LLB ABEC 5: LLB (light contact dual lip labyrinth seal)
- LLU MAX ABEC 3: LLU (medium contact dual lip seal)
- LLU MAX-E ABEC 3: LLU (medium contact dual lip seal)
- LLU/LLB ABEC 5 (C3): LLU/LLB (LLU outboard, LLB inboard)
- LLU/LLB ABEC 5 (CN): LLU/LLB (LLU outboard, LLB inboard)
- Ceramic Hybrid ABEC 5 (29.5 mm outer race): not specified
- XD-15 LLB: LLB (light contact dual lip labyrinth seal)
- LLU MAX Black Oxide ABEC 3: LLU (medium contact dual lip seal)
- Zero Ceramic LLB: LLB (light contact dual lip labyrinth seal)
- Stainless LLU MAX ABEC 3: LLU (medium contact dual lip seal)
- LLU/LLB Solid-Lube ABEC 5: LLU/LLB (LLU outboard, LLB inboard)
- LLB ABEC 5 (29.5 mm outer race): LLB (light contact dual lip labyrinth seal)
- Stainless LLB: LLB (light contact dual lip labyrinth seal)
- Ceramic Hybrid LLB ABEC 5: LLB (light contact dual lip labyrinth seal) - Material:
- LLB ABEC 3: 52100 chromium steel (races and balls)
- LLB ABEC 5: 52100 chromium steel (races and balls)
- LLU MAX ABEC 3: 52100 chromium steel (races and balls)
- LLU MAX-E ABEC 3: 52100 chromium steel (races and balls)
- LLU/LLB ABEC 5 (C3): 52100 chromium steel (races and balls)
- LLU/LLB ABEC 5 (CN): 52100 chromium steel (races and balls)
- Ceramic Hybrid ABEC 5 (29.5 mm outer race): ceramic hybrid (chromium steel races, Si3N4 ceramic balls)
- XD-15 LLB: XD-15 nitrogen stainless steel races, grade 5 Si3N4 ceramic balls
- LLU MAX Black Oxide ABEC 3: 52100 chromium steel (races and balls), black oxide treated races
- Zero Ceramic LLB: Zero Ceramic (black oxide treated 52100 chromium steel races, grade 5 Si3N4 ceramic balls)
- Stainless LLU MAX ABEC 3: 440C stainless steel (races and balls)
- LLU/LLB Solid-Lube ABEC 5: 52100 chromium steel (races and balls), Solid-Lube polymer fill instead of grease
- LLB ABEC 5 (29.5 mm outer race): 52100 chromium steel (races and balls)
- Stainless LLB: 440C stainless steel (races and balls)
- Ceramic Hybrid LLB ABEC 5: ceramic hybrid (chromium steel races, Si3N4 ceramic balls) - Fits: front hubs, hubs, suspension pivots, older square taper bottom brackets, e.g. Trek
- Contains: 1 piece
- Extras: deep groove races with the largest possible balls, 90 % grease fill, MAX version: full complement without retainer, 35 to 40 % more load capacity, static load rating per manufacturer 1.37 kN
