Needle roller bearings are essentially cylindrical roller bearings except that their cylindrical rollers have a length 3 to 10 times their diameter (versus a length less than 3 times their diameter). Needle bearings are also essentially bearings that utilize small & cylindric rollers. Therefore, the ratio of the bearing outside diameter to the inscribed circle diameter is small, and they have a rather high radial load capacity. Even though they have a low cross section, needle roller bearings have a high radial load capacity and are exceptionally apt for bearing applications where radial space is limited.
There are numerous types available, and many have no inner rings
There are numerous types available, and many have no inner rings. The drawn-cup type has a pressed steel outer ring and the precision (solid) type has a machined outer ring. There are also cage-and-roller assemblies without rings. Most bearings have pressed steel cages, but some are without cages.
Drawn cup needle roller bearings have a drawn outer shell serving as a raceway for the rollers and are installed with a press fit in the housing. They are ideal for many of the following applications: transmissions, transfer cases, engines, valve trains, steering and braking systems, axle supports, outboard engines, textile industry, power tools, copiers, fax machines, paper-moving equipment, and appliances.
Inch series
SCE and SCE-PP Series, cage guided, with/without seals: Inch
Metric series
HK, and HK-RS Series, cage guided, with/without seals: Metric
Needle Roller Bearing Part Nos:
IR 10X14X12 IR10X14X12-IS1 NKX 10 TN NKX10-TV IR 12X16X12 IR12X16X12-IS1 NKX 10 Z TN NKX10-Z-TV
IR 15X20X12 IR15X20X12-IS1 NKX 12 Z NKX12-Z IR 20X25X16 IR20X25X16-IS1 NKX 15 Z NKX15-Z IR 25X30X16 IR25X30X16-IS1 NKX 17 IR 10X14X12 IR10X14X12-IS1 NKX 10 TN NKX10-TV IR 12X16X12IR12X16X12-IS1 NKX 10 Z TN NKX10-Z-TV IR 15X20X12 IR15X20X12-IS1 NKX 12 Z NKX12-Z
IR 20X25X16 IR20X25X16IS1 NKX 15 Z NKX15-Z IR 25X30X16 IR25X30X16IS1 NKX 17 Z NKX17-Z IR 30X38X20 IR30X38X20-IS1 NKX 20 Z NKX20-Z IR 35X42X20 IR35X42X20-IS1 NKX 25 Z NKX25-Z IR 40X50X20 IR40X50X20-IS1 NKX 30 Z NKX30-Z IR 45X55X20 IR45X55X20-IS1 NKX 35 Z NKX35-Z IR 50X55X20 IR50X55X20-IS1 NKX 40 Z NKX40-Z
IR 50X60X20 IR50X60X20-IS1 NKX 45 Z NKX45-Z IR 6X10X10 IR6X10X10-IS1 NKX 50 Z NKX50-Z IR 8X12X10
IR8X12X10-IS1 NKX 60 Z NKX60-Z NKX 70 Z NKX70-Z NA 22/6.2RS NA22/6-2RSR NKXR 15 Z NKXR15-Z
NA 22/8.2RS NA22/8-2RSR NKXR 17 Z NKXR17-Z NA 2200.2RS NA2200-2RSR NKXR 20 Z NKXR20-Z NA 2201.2RS
NA2201-2RSR NKXR 25 Z NKXR25-Z NA 2202.2RS NA2202-2RSR NKXR 30 Z NKXR30-Z NA 2203.2RS NA2203-2RSR
NKXR 35 Z NKXR35-Z NA 2204.2RS NA2204-2RSR NKXR 40 Z NKXR40-Z NA 2205.2RS NA2205-2RSR NKXR 45 Z
NKXR45-Z NA 2206.2RS NA2206-2RSR NKXR 50 Z NKXR50-Z NA 2207.2RS NA2207-2RSR NA 2208.2RS NA2208-2RSR NX 10 Z NX10-Z NA 2210.2RS NA2210-2RSR NX 12 Z NX12-Z NA 4900.2RS NA4900-2RSR NX 15 Z NX15-Z
NA 4900 RS NA4900-RSR NX 17 Z NX17-Z NA 4901.2RS NA4901-2RSR NX 20 Z NX20-Z
NA 4901 RS NA4901-RSR NX 25 Z NX25-Z NA 4902.2RS NA4902-2RSR NX 30 Z NX30-Z NA 4902 RS NA4902-RSR
NX 35 Z NX35-Z NA 4903.2RS NA4903-2RSR NX 7 TN NX7-TV NA 4903 RS NA4903-RSR NX 7 Z TN NX7-Z-TV
NA 4904.2RS NA4904-2RSR NA 4904 RS NA4904-RSR NA 4905.2RS NA4905-2RSR NA 4905 RS NA4905-RSR
NA 4906.2RS NA4906-2RSR NA 4906 RS NA4906RSR NA 4907.2RSNA49072RSR NA 4907 RS NA4907RSR NA 4908.2RS
NA4908-2RSR NA 4908 RS NA4908-RSR NA 4909.2RS NA4909-2RSR NA 4909 RS NA4909-RSR NA 4910.2RS
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FAQ
Q:What’s your after-sales service and warranty? A: We promise to bear the following responsibility when defective product is found: 1.12 months warranty from the first day of receiving goods; 2. Replacements would be sent with goods of your next order; 3. Refund for defective products if customers require.
Q:Do you accept ODM&OEM orders? A: Yes, we provide ODM&OEM services to worldwide customers, we are able to customize housings in different styles, and sizes in different brands, we also customize circuit board & packaging box as per your requirements.
Q:What’s the MOQ? A: MOQ is 10pcs for standardized products; for customized products, MOQ should be negotiated in advance. There is no MOQ for sample orders.
Q:How long is the lead time? A: The lead time for sample orders is 3-5 days, for bulk orders is 5-15 days.
Q:Do you offer free samples? A: Yes we offer free samples to distributors and wholesalers, however customers should bear freight.
Q:How to place orders? A: 1. Email us the model, brand and quantity, consignee information, shipping way and payment terms; 2. Proforma Invoice made and sent to you; 3. Complete Payment after confirming the PI; 4. Confirm Payment and arrange production.