Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material | Chrome Steel GCr15 |
| Seal Type | ZZ (Metal Shield) / 2RS (Rubber Seal) |
| Precision Grade | ABEC-1 / ABEC-3 |
| Lubrication | Pre-greased |
| Cage Material | Steel |
| Noise Level | Z1 / Z2 Low Noise |
| Operating Temperature | -20°C to 120°C |
| Load Type | Radial Load |
| Origin | Imported |
| Common Applications | RC Motors, Drones, Appliances, Skateboards |
Anonymous
Mar 31, 2026
Rating: 5/5
Perfect Motor Fit
Ordered the 637 motor bearings. They fit my 540 motor exactly. Runs quietly and stays cool under load. Will buy again.
Anonymous
Mar 10, 2026
Rating: 5/5
Bulk Buy Winner
Stocking up for my workshop. The 639Z model is hard to find locally, so this imported set is a lifesaver. Quality matches domestic brands.
Anonymous
Feb 08, 2026
Rating: 5/5
Great for RC Car Upgrade
These bearings spin very smoothly. I used the 636 high-speed model for my RC motor and noticed less friction immediately. Good value for the price.
Anonymous
Feb 04, 2026
Rating: 3/5
Mixed Bag
Most of the bearings in the pack were great, but one 638 ball bearing felt a bit gritty out of the box. The rest work fine.
Anonymous
Jan 27, 2026
Rating: 4/5
Good value, minor packaging issue
The bearings themselves are high quality and fit perfectly. One package was slightly crushed during shipping, but the parts were intact.
Q: How long does shipping usually take?
A: Standard shipping typically takes 3 to 5 business days within the continental US. Expedited options are available at checkout.
Q: Are these pre-lubricated or do I need to add oil?
A: All bearings come pre-greased from the factory. You can use them immediately without additional lubrication.
Q: What is the difference between ZZ and 2RS seals?
A: ZZ refers to metal shields which offer less friction but less protection. 2RS refers to rubber seals which offer better protection against dust and water but slightly more friction.
Q: What is the maximum RPM for the 637 model?
A: The 637 motor bearing is designed for high-speed applications, typically handling up to 20,000 RPM depending on load and lubrication conditions.
Q: Will the 636 bearing fit a standard 540 brushed motor?
A: Yes, the 636 high-speed bearing is commonly compatible with standard 540 brushed motors. Please verify your specific motor shaft diameter before ordering.
![[Damai Holds Micro-Needle Hair Transplant Patent] AI Robot Precision Hair Transplant | 1000 Units Hairline Planting](https://www.gosteppe.com/cache/small/product/269438/legacy-main-d695e1be3b1b8212f24ac863.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] AI Robot Precision Hair Transplant | 1000 Units Hairline Planting
$24,990.00
Premium Ceramic Tea Canister Packaging Box, Empty Gift Box for Black Tea, Pu'er, White Tea, Biluochun, Gift Set Empty Box
$104.95
Thickened 304 Stainless Steel Planter Box for Home Balcony Vegetable Gardening - Rectangular Large Flower Pot for Rooftop Planting
$204.00
Zhongheng Car Tire Stone Hook - Multi-Function Tire Cleaner Tool to Prevent Blowouts
$7.14
JoanMiro 3D Printing Pen for Kids, Low-Temperature 3D Stereoscopic Drawing Toy, Perfect Gift for Boys and Girls on Children's Day
$29.90
Stainless Steel Tire Stone Removal Hook - Multi-Function Car Tire Cleaning Tool for Picking and Scraping Stones
$5.03
Cart Cover Rice Husk Charcoal Premium Plant Ash Grain Shell Carbon Natural Organic Fertilizer for Vegetables Succulents and Flowers
$6.55
Aojilong Automotive Plastic Restorer – Revives Black Trim, Repairs Aging, Crystal Coating Finish
$28.80
Hotel Meat Warmer Lamp - Buffet Heating Light for Cafeterias and Restaurants
$5,989.00
Topmodel Children's Watercolor Coloring Book Set with Pens, Baby Graffiti Sketchbook, Fill-in Storybook 3073
$119.09
Children's Potty Training Seat for Boys and Girls, Toddler Toilet Trainer with Urinal Bucket
$17.90
265/70R17 AT Off-Road Tire, Also Available in 205/215/225/235/45/50/55/60R18/20 High-Performance Sizes for 19-inch Wheels
$898.00
CANDLE.LAB | Silver Metal and Wood Wick Centering Device - DIY Tool for Aromatherapy Container Candles
$2.50
Custom Solid Wood Plaque - Antique Style Wooden Storefront Sign, Door Plaque, Carved Wood Board with Arched Couplets
$50.00
Industrial Scouring Pads - Stainless Steel Brushing and Rust Removal for Iron Plates - Heavy-Duty Kitchen Cleaning and Polishing
$17.62
Supply Fully Automatic Self-Cleaning Filter Pipeline Backwash Filtration Machine Stainless Steel Scraper Filter
$9,600.00
Fangxinyue Scented Candle Glass Windshield - High Borosilicate Cover to Improve Memory Ring Burning
$29.90
Hanging Drainage Basket Kitchen Sink Strainer Plastic Storage Rack Food Waste Filter
$2.85
Over-Toilet Storage Cabinet with Doors - Multi-Tier Floor Standing Bathroom Organizer for Narrow Spaces
$258.00
Inth A6 Multifunctional Leather Journal - Vintage Sketchbook, Watercolor Pad, and Doodle Book with Replaceable Cotton Refill Pages for Students
$26.90
Beginner Chinese Painting Line Drawing Copybook: Animals, Flowers, Figures, and Landscapes
$18.80
vantkevin Scented Candle Tool Set for Extinguishing Flames and Snuffing Wicks
$17.60
Multi-Function Car Tire Stone Remover Tool - Hook Pick and Screwdriver for Tread Cleaning
$3.80
Pad Printing Machine Parts: Fixed Ink Roller Screw, Steel Plate Mounting Screw, Blade Holder Adjustment Nut, Blade Clamp Screw
$0.30
Cast Steel Speed Bump for Road Ramps and Slopes
$104.12
Lifting Chain Rigging with Shackles and Hooks - Manganese Steel Chain for Towing and Hoisting Cargo 5 Ton, 3t, 2m, 1m
$92.90
309 PCB Conformal Coating - Triple Protection Acrylic UV-Cured Moisture Resistant Paint by Dima
$462.50
Biliansheng Non-Shaven Hair Transplant and Follicle Detection Service for Men and Women
$88.00
Mattel UNO Cards Desktop Happy Casual Party Multiplayer U-No Official Game Interactive Poker Cards
$22.90
Zero-Basis Electric Guitar Intro: 7-Week Self-Study Plan with Practice Exercises, Error Correction, and Materials
$472.10
![[M2-M20] Stainless Steel Spring Washer](https://www.gosteppe.com/cache/medium/product/16306/legacy-main-ef3d2dba3bde669d48e6cca2.webp)
